Merge tag 'noinstr-lds-2020-05-19' into core/rcu

Get the noinstr section and annotation markers to base the RCU parts on.

68 files changed, 1419 insertions, 534 deletions

diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c
index 16b9a420e6fd..001076c51712 100644
--- a/tools/bootconfig/main.c
+++ b/tools/bootconfig/main.c
@@ -314,6 +314,7 @@ int apply_xbc(const char *path, const char *xbc_path)
 	ret = delete_xbc(path);
 	if (ret < 0) {
 		pr_err("Failed to delete previous boot config: %d\n", ret);
+		free(data);
 		return ret;
 	}
 
@@ -321,24 +322,26 @@ int apply_xbc(const char *path, const char *xbc_path)
 	fd = open(path, O_RDWR | O_APPEND);
 	if (fd < 0) {
 		pr_err("Failed to open %s: %d\n", path, fd);
+		free(data);
 		return fd;
 	}
 	/* TODO: Ensure the @path is initramfs/initrd image */
 	ret = write(fd, data, size + 8);
 	if (ret < 0) {
 		pr_err("Failed to apply a boot config: %d\n", ret);
-		return ret;
+		goto out;
 	}
 	/* Write a magic word of the bootconfig */
 	ret = write(fd, BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_LEN);
 	if (ret < 0) {
 		pr_err("Failed to apply a boot config magic: %d\n", ret);
-		return ret;
+		goto out;
 	}
+out:
 	close(fd);
 	free(data);
 
-	return 0;
+	return ret;
 }
 
 int usage(void)
diff --git a/tools/bpf/bpftool/struct_ops.c b/tools/bpf/bpftool/struct_ops.c
index 0fe0d584c57e..e17738479edc 100644
--- a/tools/bpf/bpftool/struct_ops.c
+++ b/tools/bpf/bpftool/struct_ops.c
@@ -479,6 +479,7 @@ static int do_unregister(int argc, char **argv)
 
 static int do_register(int argc, char **argv)
 {
+	struct bpf_object_load_attr load_attr = {};
 	const struct bpf_map_def *def;
 	struct bpf_map_info info = {};
 	__u32 info_len = sizeof(info);
@@ -499,7 +500,12 @@ static int do_register(int argc, char **argv)
 
 	set_max_rlimit();
 
-	if (bpf_object__load(obj)) {
+	load_attr.obj = obj;
+	if (verifier_logs)
+		/* log_level1 + log_level2 + stats, but not stable UAPI */
+		load_attr.log_level = 1 + 2 + 4;
+
+	if (bpf_object__load_xattr(&load_attr)) {
 		bpf_object__close(obj);
 		return -1;
 	}
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile
index 39edd68afa8e..8a6f82e56a24 100644
--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -8,7 +8,7 @@ BPFTOOL ?= $(DEFAULT_BPFTOOL)
 LIBBPF_SRC := $(abspath ../../lib/bpf)
 BPFOBJ := $(OUTPUT)/libbpf.a
 BPF_INCLUDE := $(OUTPUT)
-INCLUDES := -I$(BPF_INCLUDE) -I$(OUTPUT) -I$(abspath ../../lib)
+INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../lib)
 CFLAGS := -g -Wall
 
 # Try to detect best kernel BTF source
diff --git a/tools/build/feature/test-sync-compare-and-swap.c b/tools/build/feature/test-sync-compare-and-swap.c
index 1e38d1930a97..3bc6b0768a53 100644
--- a/tools/build/feature/test-sync-compare-and-swap.c
+++ b/tools/build/feature/test-sync-compare-and-swap.c
@@ -7,7 +7,7 @@ int main(int argc, char *argv[])
 {
 	uint64_t old, new = argc;
 
-	argv = argv;
+	(void)argv;
 	do {
 		old = __sync_val_compare_and_swap(&x, 0, 0);
 	} while (!__sync_bool_compare_and_swap(&x, old, new));
diff --git a/tools/cgroup/iocost_monitor.py b/tools/cgroup/iocost_monitor.py
index 7427a5ee761b..9d8e9613008a 100644
--- a/tools/cgroup/iocost_monitor.py
+++ b/tools/cgroup/iocost_monitor.py
@@ -159,7 +159,12 @@ class IocgStat:
         else:
             self.inflight_pct = 0
 
-        self.debt_ms = iocg.abs_vdebt.counter.value_() / VTIME_PER_USEC / 1000
+        # vdebt used to be an atomic64_t and is now u64, support both
+        try:
+            self.debt_ms = iocg.abs_vdebt.counter.value_() / VTIME_PER_USEC / 1000
+        except:
+            self.debt_ms = iocg.abs_vdebt.value_() / VTIME_PER_USEC / 1000
+
         self.use_delay = blkg.use_delay.counter.value_()
         self.delay_ms = blkg.delay_nsec.counter.value_() / 1_000_000
 
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 2e29a671d67e..7bbf1b65be10 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -1642,7 +1642,7 @@ union bpf_attr {
  * 		ifindex, but doesn't require a map to do so.
  * 	Return
  * 		**XDP_REDIRECT** on success, or the value of the two lower bits
- * 		of the **flags* argument on error.
+ * 		of the *flags* argument on error.
  *
  * int bpf_sk_redirect_map(struct sk_buff *skb, struct bpf_map *map, u32 key, u64 flags)
  * 	Description
diff --git a/tools/lib/bpf/netlink.c b/tools/lib/bpf/netlink.c
index 0b709fd10bba..312f887570b2 100644
--- a/tools/lib/bpf/netlink.c
+++ b/tools/lib/bpf/netlink.c
@@ -321,6 +321,8 @@ int bpf_get_link_xdp_info(int ifindex, struct xdp_link_info *info,
 
 static __u32 get_xdp_id(struct xdp_link_info *info, __u32 flags)
 {
+	flags &= XDP_FLAGS_MODES;
+
 	if (info->attach_mode != XDP_ATTACHED_MULTI && !flags)
 		return info->prog_id;
 	if (flags & XDP_FLAGS_DRV_MODE)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4b170fd08a28..3c6da70e6084 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -72,6 +72,17 @@ static struct instruction *next_insn_same_func(struct objtool_file *file,
 	return find_insn(file, func->cfunc->sec, func->cfunc->offset);
 }
 
+static struct instruction *prev_insn_same_sym(struct objtool_file *file,
+					       struct instruction *insn)
+{
+	struct instruction *prev = list_prev_entry(insn, list);
+
+	if (&prev->list != &file->insn_list && prev->func == insn->func)
+		return prev;
+
+	return NULL;
+}
+
 #define func_for_each_insn(file, func, insn)				\
 	for (insn = find_insn(file, func->sec, func->offset);		\
 	     insn;							\
@@ -1050,8 +1061,8 @@ static struct rela *find_jump_table(struct objtool_file *file,
 	 * it.
 	 */
 	for (;
-	     &insn->list != &file->insn_list && insn->func && insn->func->pfunc == func;
-	     insn = insn->first_jump_src ?: list_prev_entry(insn, list)) {
+	     insn && insn->func && insn->func->pfunc == func;
+	     insn = insn->first_jump_src ?: prev_insn_same_sym(file, insn)) {
 
 		if (insn != orig_insn && insn->type == INSN_JUMP_DYNAMIC)
 			break;
@@ -1449,7 +1460,7 @@ static int update_insn_state_regs(struct instruction *insn, struct insn_state *s
 	struct cfi_reg *cfa = &state->cfa;
 	struct stack_op *op = &insn->stack_op;
 
-	if (cfa->base != CFI_SP)
+	if (cfa->base != CFI_SP && cfa->base != CFI_SP_INDIRECT)
 		return 0;
 
 	/* push */
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 09ddc8f1def3..c4857fa3f1d1 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -105,7 +105,7 @@ static int symbol_by_offset(const void *key, const struct rb_node *node)
 
 	if (*o < s->offset)
 		return -1;
-	if (*o > s->offset + s->len)
+	if (*o >= s->offset + s->len)
 		return 1;
 
 	return 0;
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index ebbb10c61e24..12e01ac190ec 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -87,9 +87,10 @@ struct elf {
 #define OFFSET_STRIDE		(1UL << OFFSET_STRIDE_BITS)
 #define OFFSET_STRIDE_MASK	(~(OFFSET_STRIDE - 1))
 
-#define for_offset_range(_offset, _start, _end)		\
-	for (_offset = ((_start) & OFFSET_STRIDE_MASK);	\
-	     _offset <= ((_end) & OFFSET_STRIDE_MASK);	\
+#define for_offset_range(_offset, _start, _end)			\
+	for (_offset = ((_start) & OFFSET_STRIDE_MASK);		\
+	     _offset >= ((_start) & OFFSET_STRIDE_MASK) &&	\
+	     _offset <= ((_end) & OFFSET_STRIDE_MASK);		\
 	     _offset += OFFSET_STRIDE)
 
 static inline u32 sec_offset_hash(struct section *sec, unsigned long offset)
@@ -99,7 +100,7 @@ static inline u32 sec_offset_hash(struct section *sec, unsigned long offset)
 	offset &= OFFSET_STRIDE_MASK;
 
 	ol = offset;
-	oh = offset >> 32;
+	oh = (offset >> 16) >> 16;
 
 	__jhash_mix(ol, oh, idx);
 
diff --git a/tools/power/pm-graph/Makefile b/tools/power/pm-graph/Makefile
index 845541544570..b5310832c19c 100644
--- a/tools/power/pm-graph/Makefile
+++ b/tools/power/pm-graph/Makefile
@@ -41,6 +41,10 @@ uninstall :
 	if [ -d $(DESTDIR)$(PREFIX)/lib/pm-graph/config ] ; then \
 		rmdir $(DESTDIR)$(PREFIX)/lib/pm-graph/config; \
 	fi;
+	rm -f $(DESTDIR)$(PREFIX)/lib/pm-graph/__pycache__/*
+	if [ -d $(DESTDIR)$(PREFIX)/lib/pm-graph/__pycache__ ] ; then \
+		rmdir $(DESTDIR)$(PREFIX)/lib/pm-graph/__pycache__; \
+	fi;
 	rm -f $(DESTDIR)$(PREFIX)/lib/pm-graph/*
 	if [ -d $(DESTDIR)$(PREFIX)/lib/pm-graph ] ; then \
 		rmdir $(DESTDIR)$(PREFIX)/lib/pm-graph; \
diff --git a/tools/power/pm-graph/README b/tools/power/pm-graph/README
index 96259f6e5715..afe6beb40ad9 100644
--- a/tools/power/pm-graph/README
+++ b/tools/power/pm-graph/README
@@ -1,7 +1,12 @@
-                     p m - g r a p h
+                                                _
+    _ __  _ __ ___         __ _ _ __ __ _ _ __ | |__
+   | '_ \| '_ ` _ \ _____ / _` | '__/ _` | '_ \| '_ \
+   | |_) | | | | | |_____| (_| | | | (_| | |_) | | | |
+   | .__/|_| |_| |_|      \__, |_|  \__,_| .__/|_| |_|
+   |_|                    |___/          |_|
 
    pm-graph: suspend/resume/boot timing analysis tools
-    Version: 5.5
+    Version: 5.6
      Author: Todd Brandt <todd.e.brandt@intel.com>
   Home Page: https://01.org/pm-graph
 
@@ -18,10 +23,6 @@
 	- upstream version in git:
 	  https://github.com/intel/pm-graph/
 
- Requirements:
-	- runs with python2 or python3, choice is made by /usr/bin/python link
-	- python2 now requires python-configparser be installed
-
  Table of Contents
 	- Overview
 	- Setup
@@ -29,6 +30,8 @@
 		- Basic Usage
 		- Dev Mode Usage
 		- Proc Mode Usage
+	- Endurance Testing
+		- Usage Examples
 	- Configuration Files
 		- Usage Examples
 		- Config File Options
@@ -54,15 +57,18 @@
 |                            SETUP                               |
 ------------------------------------------------------------------
 
-    These packages are required to execute the scripts
+    Package Requirements
+       - runs with python2 or python3, choice is made by /usr/bin/python link
        - python
-       - python-requests
+       - python-configparser (for python2 sleepgraph)
+       - python-requests (for googlesheet.py)
+       - linux-tools-common (for turbostat usage in sleepgraph)
 
        Ubuntu:
-          sudo apt-get install python python-requests
+          sudo apt-get install python python-configparser python-requests linux-tools-common
 
        Fedora:
-          sudo dnf install python python-requests
+          sudo dnf install python python-configparser python-requests linux-tools-common
 
     The tools can most easily be installed via git clone and make install
 
@@ -190,6 +196,104 @@ _______________
 
  %> sudo ./sleepgraph.py -config config/suspend-proc.cfg
 
+------------------------------------------------------------------
+|                     ENDURANCE TESTING                          |
+------------------------------------------------------------------
+
+ The best way to gauge the health of a system is to run a series of
+ suspend/resumes over an extended period and analyze the behavior. This can be
+ accomplished with sleepgraph's -multi argument. You specify two numbers: the
+ number of tests to run OR the duration in days, hours, or minutes, and the
+ delay in seconds between them. For instance, -multi 20 5: execute 20 tests with
+ a 5 second delay between each, or -multi 24h 0: execute tests over a 24 hour
+ period with no delay between tests. You can include any other options you like
+ to generate the data you want. It's most useful to collect dev mode timelines
+ as the kprobes don't alter the performance much and you get more insight.
+
+ On completion, the output folder contains a series of folders for the
+ individual test data and a set of summary pages in the root. The summary.html
+ file is a tabular list of the tests with relevant info and links. The
+ summary-issue.html and summary-devices.html files include data taken from
+ all tests on kernel issues and device performance. The folder looks like this:
+
+  suspend-xN-{date}-{time}:
+	summary.html
+	summary-issues.html
+	summary-devices.html
+	suspend-{date}-{time} (1)
+	suspend-{date}-{time} (2)
+	...
+
+ These are the relevant arguments to use for testing:
+
+  -m mode
+	Mode to initiate for suspend e.g. mem, freeze, standby (default: mem).
+
+  -rtcwake t
+	Use rtcwake to autoresume after t seconds (default: 15).
+
+  -gzip (optional)
+	Gzip the trace and dmesg logs to save space. The tool can also read in
+	gzipped logs for processing. This reduces the multitest folder size.
+
+  -dev (optional)
+	Add kernel source calls and threads to the timeline (default: disabled).
+
+  -multi n d
+	Execute n consecutive tests at d seconds intervals. The outputs will be
+	created in a new subdirectory: suspend-xN-{date}-{time}. When the multitest
+	run is done, the -summary command is called automatically to create summary
+	html files for all the data (unless you use -skiphtml). -skiphtml will
+	speed up the testing by not creating timelines or summary html files. You
+	can then run the tool again at a later time with -summary and -genhtml to
+	create the timelines.
+
+  -skiphtml (optional)
+	Run the test and capture the trace logs, but skip the timeline and summary
+	html generation. This can greatly speed up overall testing. You can then
+	copy the data to a faster host machine and run -summary -genhtml to
+	generate the timelines and summary.
+
+ These are the relevant commands to use after testing is complete:
+
+  -summary indir
+	Generate or regenerate the summary for a -multi test run. Creates three
+	files: summary.html, summary-issues.html, and summary-devices.html in the
+	current folder. summary.html is a table of tests with relevant info sorted
+	by kernel/host/mode, and links to the test html files. summary-issues.html
+	is a list of kernel issues found in dmesg from all the tests.
+	summary-devices.html is a list of devices and times from all the tests.
+
+  -genhtml
+	Used  with -summary to regenerate any missing html timelines from their
+	dmesg and ftrace logs. This will require a significant amount of time if
+	there are thousands of tests.
+
+Usage Examples
+_______________
+
+ A multitest is initiated like this:
+
+  %> sudo ./sleepgraph.py -m mem -rtcwake 10 -dev -gzip -multi 2000 0
+
+	or you can skip timeline generation in order to speed things up
+
+  %> sudo ./sleepgraph.py -m mem -rtcwake 10 -dev -gzip -multi 2000 0 -skiphtml
+
+ The tool will produce an output folder with all the test subfolders inside.
+ Each test subfolder contains the dmesg/ftrace logs and/or the html timeline
+ depending on whether you used the -skiphtml option. The root folder contains
+ the summary.html files.
+
+ The summary for an existing multitest is generated like this:
+
+  %> cd suspend-x2000-{date}-{time}
+  %> sleepgraph.py -summary .
+
+	or if you need to generate the html timelines you can use -genhtml
+
+  %> cd suspend-xN-{date}-{time}
+  %> sleepgraph.py -summary . -genhtml
 
 ------------------------------------------------------------------
 |                    CONFIGURATION FILES                         |
diff --git a/tools/power/pm-graph/bootgraph.py b/tools/power/pm-graph/bootgraph.py
index d3b99a1e92d6..2823cd3122f7 100755
--- a/tools/power/pm-graph/bootgraph.py
+++ b/tools/power/pm-graph/bootgraph.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0-only
 #
 # Tool for analyzing boot timing
diff --git a/tools/power/pm-graph/sleepgraph.8 b/tools/power/pm-graph/sleepgraph.8
index 43aee64316df..5126271de98a 100644
--- a/tools/power/pm-graph/sleepgraph.8
+++ b/tools/power/pm-graph/sleepgraph.8
@@ -74,8 +74,10 @@ after the test is complete.
 Switch the display to the requested mode for the test using the xset command.
 This helps maintain the consistency of test data for better comparison.
 .TP
-\fB-skiphtml\fR
-Run the test and capture the trace logs, but skip the timeline generation.
+\fB-wifi\fR
+If a wifi connection is available, check that it reconnects after resume. Include
+the reconnect time in the total resume time calculation and treat wifi timeouts
+as resume failures.
 
 .SS "advanced"
 .TP
@@ -117,8 +119,24 @@ Include \fIt\fR ms delay before 1st suspend (default: 0 ms).
 Include \fIt\fR ms delay after last resume (default: 0 ms).
 .TP
 \fB-multi \fIn d\fR
-Execute \fIn\fR consecutive tests at \fId\fR seconds intervals. The outputs will
-be created in a new subdirectory with a summary page: suspend-xN-{date}-{time}.
+Used for endurance testing. If \fIn\fR is entirely numeric, it's treated as a count:
+Execute \fIn\fR consecutive tests at \fId\fR second intervals.
+If \fIn\fR is an integer followed by a "d", "h", or "m", it's treated as a duration:
+Execute tests continuously over \fIn\fR days, hours, or minutes at \fId\fR second intervals.
+The outputs will be created in a new subdirectory, for count: suspend-{date}-{time}-xN,
+for duration: suspend-{date}-{time}-Nm. When the multitest run is done, the \fI-summary\fR
+command is called automatically to create summary html files for all the data (unless you
+use \fI-skiphtml\fR). \fI-skiphtml\fR will speed up the testing by not creating timelines
+or summary html files. You can then run the tool again at a later time with \fI-summary\fR
+and \fI-genhtml\fR to create the timelines.
+.TP
+\fB-maxfail \fIn\fR
+Abort a -multi run after \fIn\fR consecutive fails. 0 means never abort (default = 0).
+.TP
+\fB-skiphtml\fR
+Run the test and capture the trace logs, but skip the timeline generation.
+You can generate the html timelines later with \fI-dmesg\fR & \fI-ftrace\fR, or
+by running \fI-summary\fR and \fI-genhtml\fR.
 
 .SS "ftrace debug"
 .TP
@@ -173,11 +191,20 @@ Set trace buffer size to N kilo-bytes (default: all of free memory up to 3GB)
 .SH COMMANDS
 .TP
 \fB-summary \fIindir\fR
-Create a summary page of all tests in \fIindir\fR. Creates summary.html
-in the current folder. The output page is a table of tests with
-suspend and resume values sorted by suspend mode, host, and kernel.
-Includes test averages by mode and links to the test html files.
-Use -genhtml to include tests with missing html.
+Create a set of summary pages for all tests in \fIindir\fR recursively.
+Creates summary.html, summary-issues.html, and summary-devices.html in the current folder.
+summary.html is a table of tests with relevant info sorted by kernel/host/mode,
+and links to the test html files. It identifies the minimum, maximum, and median
+suspend and resume times for you with highlights and links in the header.
+summary-issues.html is a list of kernel issues found in dmesg from all the tests.
+summary-devices.html is a list of devices and times from all the tests.
+
+Use \fI-genhtml\fR to regenerate any tests with missing html.
+.TP
+\fB-genhtml\fR
+Used with \fI-summary\fR to regenerate any missing html timelines from their
+dmesg and ftrace logs. This will require a significant amount of time if there
+are thousands of tests.
 .TP
 \fB-modes\fR
 List available suspend modes.
@@ -189,10 +216,7 @@ with any options you intend to use to see if they will work.
 \fB-fpdt\fR
 Print out the contents of the ACPI Firmware Performance Data Table.
 .TP
-\fB-battery\fR
-Print out battery status and current charge.
-.TP
-\fB-wifi\fR
+\fB-wificheck\fR
 Print out wifi status and connection details.
 .TP
 \fB-xon/-xoff/-xstandby/-xsuspend\fR
@@ -208,6 +232,9 @@ Print out system info extracted from BIOS. Reads /dev/mem directly instead of go
 \fB-devinfo\fR
 Print out the pm settings of all devices which support runtime suspend.
 .TP
+\fB-cmdinfo\fR
+Print out all the platform data collected from the system that makes it into the logs.
+.TP
 \fB-flist\fR
 Print the list of ftrace functions currently being captured. Functions
 that are not available as symbols in the current kernel are shown in red.
@@ -272,14 +299,20 @@ Run two suspends back to back, include a 500ms delay before, after, and in betwe
 .IP
 \f(CW$ sudo sleepgraph -m mem -rtcwake 15 -x2 -predelay 500 -x2delay 500 -postdelay 500\fR
 .PP
+Execute a suspend using a custom command.
+.IP
+\f(CW$ sudo sleepgraph -cmd "echo mem > /sys/power/state" -rtcwake 15\fR
+.PP
+
+.SS "endurance testing using -multi"
+.PP
 Do a batch run of 10 freezes with 30 seconds delay between runs.
 .IP
 \f(CW$ sudo sleepgraph -m freeze -rtcwake 15 -multi 10 30\fR
 .PP
-Execute a suspend using a custom command.
+Do a batch run of freezes for 24 hours.
 .IP
-\f(CW$ sudo sleepgraph -cmd "echo mem > /sys/power/state" -rtcwake 15\fR
-.PP
+\f(CW$ sudo sleepgraph -m freeze -rtcwake 15 -multi 24h 0\fR
 
 .SS "adding callgraph data"
 Add device callgraphs. Limit the trace depth and only show callgraphs 10ms or larger.
diff --git a/tools/power/pm-graph/sleepgraph.py b/tools/power/pm-graph/sleepgraph.py
index f7d1c1f62f86..9b0404d10768 100755
--- a/tools/power/pm-graph/sleepgraph.py
+++ b/tools/power/pm-graph/sleepgraph.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0-only
 #
 # Tool for analyzing suspend/resume timing
@@ -58,7 +58,7 @@ import re
 import platform
 import signal
 import codecs
-from datetime import datetime
+from datetime import datetime, timedelta
 import struct
 import configparser
 import gzip
@@ -81,12 +81,13 @@ def ascii(text):
 #	 store system values and test parameters
 class SystemValues:
 	title = 'SleepGraph'
-	version = '5.5'
+	version = '5.6'
 	ansi = False
 	rs = 0
 	display = ''
 	gzip = False
 	sync = False
+	wifi = False
 	verbose = False
 	testlog = True
 	dmesglog = True
@@ -97,7 +98,8 @@ class SystemValues:
 	cgphase = ''
 	cgtest = -1
 	cgskip = ''
-	multitest = {'run': False, 'count': 0, 'delay': 0}
+	maxfail = 0
+	multitest = {'run': False, 'count': 1000000, 'delay': 0}
 	max_graph_depth = 0
 	callloopmaxgap = 0.0001
 	callloopmaxlen = 0.005
@@ -148,7 +150,7 @@ class SystemValues:
 	x2delay = 0
 	skiphtml = False
 	usecallgraph = False
-	ftopfunc = 'suspend_devices_and_enter'
+	ftopfunc = 'pm_suspend'
 	ftop = False
 	usetraceevents = False
 	usetracemarkers = True
@@ -164,6 +166,8 @@ class SystemValues:
 	predelay = 0
 	postdelay = 0
 	pmdebug = ''
+	tmstart = 'SUSPEND START %Y%m%d-%H:%M:%S.%f'
+	tmend = 'RESUME COMPLETE %Y%m%d-%H:%M:%S.%f'
 	tracefuncs = {
 		'sys_sync': {},
 		'ksys_sync': {},
@@ -183,9 +187,11 @@ class SystemValues:
 		'acpi_s2idle_sync': {},
 		'acpi_s2idle_begin': {},
 		'acpi_s2idle_prepare': {},
+		'acpi_s2idle_prepare_late': {},
 		'acpi_s2idle_wake': {},
 		'acpi_s2idle_wakeup': {},
 		'acpi_s2idle_restore': {},
+		'acpi_s2idle_restore_early': {},
 		'hibernate_preallocate_memory': {},
 		'create_basic_memory_bitmaps': {},
 		'swsusp_write': {},
@@ -270,12 +276,23 @@ class SystemValues:
 		'intel_opregion_init': {},
 		'intel_fbdev_set_suspend': {},
 	}
+	infocmds = [
+		[0, 'kparams', 'cat', '/proc/cmdline'],
+		[0, 'mcelog', 'mcelog'],
+		[0, 'pcidevices', 'lspci', '-tv'],
+		[0, 'usbdevices', 'lsusb', '-t'],
+		[1, 'interrupts', 'cat', '/proc/interrupts'],
+		[1, 'wakeups', 'cat', '/sys/kernel/debug/wakeup_sources'],
+		[2, 'gpecounts', 'sh', '-c', 'grep -v invalid /sys/firmware/acpi/interrupts/*'],
+		[2, 'suspendstats', 'sh', '-c', 'grep -v invalid /sys/power/suspend_stats/*'],
+		[2, 'cpuidle', 'sh', '-c', 'grep -v invalid /sys/devices/system/cpu/cpu*/cpuidle/state*/s2idle/*'],
+		[2, 'battery', 'sh', '-c', 'grep -v invalid /sys/class/power_supply/*/*'],
+	]
 	cgblacklist = []
 	kprobes = dict()
 	timeformat = '%.3f'
 	cmdline = '%s %s' % \
 			(os.path.basename(sys.argv[0]), ' '.join(sys.argv[1:]))
-	kparams = ''
 	sudouser = ''
 	def __init__(self):
 		self.archargs = 'args_'+platform.machine()
@@ -295,6 +312,9 @@ class SystemValues:
 		if os.getuid() == 0 and 'SUDO_USER' in os.environ and \
 			os.environ['SUDO_USER']:
 			self.sudouser = os.environ['SUDO_USER']
+	def resetlog(self):
+		self.logmsg = ''
+		self.platinfo = []
 	def vprint(self, msg):
 		self.logmsg += msg+'\n'
 		if self.verbose or msg.startswith('WARNING:'):
@@ -304,11 +324,11 @@ class SystemValues:
 			return
 		signame = self.signames[signum] if signum in self.signames else 'UNKNOWN'
 		msg = 'Signal %s caused a tool exit, line %d' % (signame, frame.f_lineno)
-		sysvals.outputResult({'error':msg})
+		self.outputResult({'error':msg})
 		sys.exit(3)
 	def signalHandlerInit(self):
 		capture = ['BUS', 'SYS', 'XCPU', 'XFSZ', 'PWR', 'HUP', 'INT', 'QUIT',
-			'ILL', 'ABRT', 'FPE', 'SEGV', 'TERM', 'TSTP']
+			'ILL', 'ABRT', 'FPE', 'SEGV', 'TERM']
 		self.signames = dict()
 		for i in capture:
 			s = 'SIG'+i
@@ -336,6 +356,8 @@ class SystemValues:
 			self.outputResult({'error':msg})
 			sys.exit(1)
 		return False
+	def usable(self, file):
+		return (os.path.exists(file) and os.path.getsize(file) > 0)
 	def getExec(self, cmd):
 		try:
 			fp = Popen(['which', cmd], stdout=PIPE, stderr=PIPE).stdout
@@ -389,12 +411,6 @@ class SystemValues:
 		r = info['bios-release-date'] if 'bios-release-date' in info else ''
 		self.sysstamp = '# sysinfo | man:%s | plat:%s | cpu:%s | bios:%s | biosdate:%s | numcpu:%d | memsz:%d | memfr:%d' % \
 			(m, p, c, b, r, self.cpucount, self.memtotal, self.memfree)
-		try:
-			kcmd = open('/proc/cmdline', 'r').read().strip()
-		except:
-			kcmd = ''
-		if kcmd:
-			self.sysstamp += '\n# kparams | %s' % kcmd
 	def printSystemInfo(self, fatal=False):
 		self.rootCheck(True)
 		out = dmidecode(self.mempath, fatal)
@@ -441,6 +457,7 @@ class SystemValues:
 			self.testdir+'/'+self.prefix+'_'+self.suspendmode+'.html'
 		if not os.path.isdir(self.testdir):
 			os.makedirs(self.testdir)
+		self.sudoUserchown(self.testdir)
 	def getValueList(self, value):
 		out = []
 		for i in value.split(','):
@@ -486,7 +503,7 @@ class SystemValues:
 		fp.close()
 		self.dmesgstart = float(ktime)
 	def getdmesg(self, testdata):
-		op = self.writeDatafileHeader(sysvals.dmesgfile, testdata)
+		op = self.writeDatafileHeader(self.dmesgfile, testdata)
 		# store all new dmesg lines since initdmesg was called
 		fp = Popen('dmesg', stdout=PIPE).stdout
 		for line in fp:
@@ -716,9 +733,10 @@ class SystemValues:
 			if name == f:
 				return True
 		return False
-	def initFtrace(self):
-		self.printSystemInfo(False)
-		pprint('INITIALIZING FTRACE...')
+	def initFtrace(self, quiet=False):
+		if not quiet:
+			sysvals.printSystemInfo(False)
+			pprint('INITIALIZING FTRACE...')
 		# turn trace off
 		self.fsetVal('0', 'tracing_on')
 		self.cleanupFtrace()
@@ -746,7 +764,7 @@ class SystemValues:
 			if tgtsize < 65536:
 				tgtsize = int(self.fgetVal('buffer_size_kb')) * cpus
 				break
-		pprint('Setting trace buffers to %d kB (%d kB per cpu)' % (tgtsize, tgtsize/cpus))
+		self.vprint('Setting trace buffers to %d kB (%d kB per cpu)' % (tgtsize, tgtsize/cpus))
 		# initialize the callgraph trace
 		if(self.usecallgraph):
 			# set trace type
@@ -782,7 +800,8 @@ class SystemValues:
 			if self.usedevsrc:
 				for name in self.dev_tracefuncs:
 					self.defaultKprobe(name, self.dev_tracefuncs[name])
-			pprint('INITIALIZING KPROBES...')
+			if not quiet:
+				pprint('INITIALIZING KPROBES...')
 			self.addKprobes(self.verbose)
 		if(self.usetraceevents):
 			# turn trace events on
@@ -827,21 +846,10 @@ class SystemValues:
 				fw = test['fw']
 				if(fw):
 					fp.write('# fwsuspend %u fwresume %u\n' % (fw[0], fw[1]))
-			if 'mcelog' in test:
-				fp.write('# mcelog %s\n' % test['mcelog'])
 			if 'turbo' in test:
 				fp.write('# turbostat %s\n' % test['turbo'])
-			if 'bat' in test:
-				(a1, c1), (a2, c2) = test['bat']
-				fp.write('# battery %s %d %s %d\n' % (a1, c1, a2, c2))
 			if 'wifi' in test:
-				wstr = []
-				for wifi in test['wifi']:
-					tmp = []
-					for key in sorted(wifi):
-						tmp.append('%s:%s' % (key, wifi[key]))
-					wstr.append('|'.join(tmp))
-				fp.write('# wifi %s\n' % (','.join(wstr)))
+				fp.write('# wifi %s\n' % test['wifi'])
 			if test['error'] or len(testdata) > 1:
 				fp.write('# enter_sleep_error %s\n' % test['error'])
 		return fp
@@ -901,23 +909,7 @@ class SystemValues:
 	def b64zip(self, data):
 		out = base64.b64encode(codecs.encode(data.encode(), 'zlib')).decode()
 		return out
-	def mcelog(self, clear=False):
-		cmd = self.getExec('mcelog')
-		if not cmd:
-			return ''
-		if clear:
-			call(cmd+' > /dev/null 2>&1', shell=True)
-			return ''
-		try:
-			fp = Popen([cmd], stdout=PIPE, stderr=PIPE).stdout
-			out = ascii(fp.read()).strip()
-			fp.close()
-		except:
-			return ''
-		if not out:
-			return ''
-		return self.b64zip(out)
-	def platforminfo(self):
+	def platforminfo(self, cmdafter):
 		# add platform info on to a completed ftrace file
 		if not os.path.exists(self.ftracefile):
 			return False
@@ -1001,31 +993,76 @@ class SystemValues:
 		footer += '# platform-devinfo: %s\n' % self.b64zip(out)
 
 		# add a line for each of these commands with their outputs
-		cmds = [
-			['pcidevices', 'lspci', '-tv'],
-			['interrupts', 'cat', '/proc/interrupts'],
-			['gpecounts', 'sh', '-c', 'grep -v invalid /sys/firmware/acpi/interrupts/gpe*'],
-		]
-		for cargs in cmds:
-			name = cargs[0]
-			cmdline = ' '.join(cargs[1:])
-			cmdpath = self.getExec(cargs[1])
-			if not cmdpath:
+		for name, cmdline, info in cmdafter:
+			footer += '# platform-%s: %s | %s\n' % (name, cmdline, self.b64zip(info))
+
+		with self.openlog(self.ftracefile, 'a') as fp:
+			fp.write(footer)
+		return True
+	def commonPrefix(self, list):
+		if len(list) < 2:
+			return ''
+		prefix = list[0]
+		for s in list[1:]:
+			while s[:len(prefix)] != prefix and prefix:
+				prefix = prefix[:len(prefix)-1]
+			if not prefix:
+				break
+		if '/' in prefix and prefix[-1] != '/':
+			prefix = prefix[0:prefix.rfind('/')+1]
+		return prefix
+	def dictify(self, text, format):
+		out = dict()
+		header = True if format == 1 else False
+		delim = ' ' if format == 1 else ':'
+		for line in text.split('\n'):
+			if header:
+				header, out['@'] = False, line
+				continue
+			line = line.strip()
+			if delim in line:
+				data = line.split(delim, 1)
+				num = re.search(r'[\d]+', data[1])
+				if format == 2 and num:
+					out[data[0].strip()] = num.group()
+				else:
+					out[data[0].strip()] = data[1]
+		return out
+	def cmdinfo(self, begin, debug=False):
+		out = []
+		if begin:
+			self.cmd1 = dict()
+		for cargs in self.infocmds:
+			delta, name = cargs[0], cargs[1]
+			cmdline, cmdpath = ' '.join(cargs[2:]), self.getExec(cargs[2])
+			if not cmdpath or (begin and not delta):
 				continue
-			cmd = [cmdpath] + cargs[2:]
 			try:
-				fp = Popen(cmd, stdout=PIPE, stderr=PIPE).stdout
+				fp = Popen([cmdpath]+cargs[3:], stdout=PIPE, stderr=PIPE).stdout
 				info = ascii(fp.read()).strip()
 				fp.close()
 			except:
 				continue
-			if not info:
-				continue
-			footer += '# platform-%s: %s | %s\n' % (name, cmdline, self.b64zip(info))
-
-		with self.openlog(self.ftracefile, 'a') as fp:
-			fp.write(footer)
-		return True
+			if not debug and begin:
+				self.cmd1[name] = self.dictify(info, delta)
+			elif not debug and delta and name in self.cmd1:
+				before, after = self.cmd1[name], self.dictify(info, delta)
+				dinfo = ('\t%s\n' % before['@']) if '@' in before else ''
+				prefix = self.commonPrefix(list(before.keys()))
+				for key in sorted(before):
+					if key in after and before[key] != after[key]:
+						title = key.replace(prefix, '')
+						if delta == 2:
+							dinfo += '\t%s : %s -> %s\n' % \
+								(title, before[key].strip(), after[key].strip())
+						else:
+							dinfo += '%10s (start) : %s\n%10s (after) : %s\n' % \
+								(title, before[key], title, after[key])
+				dinfo = '\tnothing changed' if not dinfo else dinfo.rstrip()
+				out.append((name, cmdline, dinfo))
+			else:
+				out.append((name, cmdline, '\tnothing' if not info else info))
+		return out
 	def haveTurbostat(self):
 		if not self.tstat:
 			return False
@@ -1035,8 +1072,8 @@ class SystemValues:
 		fp = Popen([cmd, '-v'], stdout=PIPE, stderr=PIPE).stderr
 		out = ascii(fp.read()).strip()
 		fp.close()
-		if re.match('turbostat version [0-9\.]* .*', out):
-			sysvals.vprint(out)
+		if re.match('turbostat version .*', out):
+			self.vprint(out)
 			return True
 		return False
 	def turbostat(self):
@@ -1056,11 +1093,11 @@ class SystemValues:
 		fp.close()
 		if not keyline or not valline or len(keyline) != len(valline):
 			errmsg = 'unrecognized turbostat output:\n'+rawout.strip()
-			sysvals.vprint(errmsg)
-			if not sysvals.verbose:
+			self.vprint(errmsg)
+			if not self.verbose:
 				pprint(errmsg)
 			return ''
-		if sysvals.verbose:
+		if self.verbose:
 			pprint(rawout.strip())
 		out = []
 		for key in keyline:
@@ -1068,30 +1105,36 @@ class SystemValues:
 			val = valline[idx]
 			out.append('%s=%s' % (key, val))
 		return '|'.join(out)
-	def checkWifi(self):
-		out = dict()
-		iwcmd, ifcmd = self.getExec('iwconfig'), self.getExec('ifconfig')
-		if not iwcmd or not ifcmd:
-			return out
-		fp = Popen(iwcmd, stdout=PIPE, stderr=PIPE).stdout
-		for line in fp:
-			m = re.match('(?P<dev>\S*) .* ESSID:(?P<ess>\S*)', ascii(line))
-			if not m:
+	def wifiDetails(self, dev):
+		try:
+			info = open('/sys/class/net/%s/device/uevent' % dev, 'r').read().strip()
+		except:
+			return dev
+		vals = [dev]
+		for prop in info.split('\n'):
+			if prop.startswith('DRIVER=') or prop.startswith('PCI_ID='):
+				vals.append(prop.split('=')[-1])
+		return ':'.join(vals)
+	def checkWifi(self, dev=''):
+		try:
+			w = open('/proc/net/wireless', 'r').read().strip()
+		except:
+			return ''
+		for line in reversed(w.split('\n')):
+			m = re.match(' *(?P<dev>.*): (?P<stat>[0-9a-f]*) .*', w.split('\n')[-1])
+			if not m or (dev and dev != m.group('dev')):
 				continue
-			out['device'] = m.group('dev')
-			if '"' in m.group('ess'):
-				out['essid'] = m.group('ess').strip('"')
-				break
-		fp.close()
-		if 'device' in out:
-			fp = Popen([ifcmd, out['device']], stdout=PIPE, stderr=PIPE).stdout
-			for line in fp:
-				m = re.match('.* inet (?P<ip>[0-9\.]*)', ascii(line))
-				if m:
-					out['ip'] = m.group('ip')
-					break
-			fp.close()
-		return out
+			return m.group('dev')
+		return ''
+	def pollWifi(self, dev, timeout=60):
+		start = time.time()
+		while (time.time() - start) < timeout:
+			w = self.checkWifi(dev)
+			if w:
+				return '%s reconnected %.2f' % \
+					(self.wifiDetails(dev), max(0, time.time() - start))
+			time.sleep(0.01)
+		return '%s timeout %d' % (self.wifiDetails(dev), timeout)
 	def errorSummary(self, errinfo, msg):
 		found = False
 		for entry in errinfo:
@@ -1113,8 +1156,9 @@ class SystemValues:
 				arr[j] = arr[j]\
 					.replace('\\', '\\\\').replace(']', '\]').replace('[', '\[')\
 					.replace('.', '\.').replace('+', '\+').replace('*', '\*')\
-					.replace('(', '\(').replace(')', '\)')
-		mstr = ' '.join(arr)
+					.replace('(', '\(').replace(')', '\)').replace('}', '\}')\
+					.replace('{', '\{')
+		mstr = ' *'.join(arr)
 		entry = {
 			'line': msg,
 			'match': mstr,
@@ -1122,6 +1166,44 @@ class SystemValues:
 			'urls': {self.hostname: [self.htmlfile]}
 		}
 		errinfo.append(entry)
+	def multistat(self, start, idx, finish):
+		if 'time' in self.multitest:
+			id = '%d Duration=%dmin' % (idx+1, self.multitest['time'])
+		else:
+			id = '%d/%d' % (idx+1, self.multitest['count'])
+		t = time.time()
+		if 'start' not in self.multitest:
+			self.multitest['start'] = self.multitest['last'] = t
+			self.multitest['total'] = 0.0
+			pprint('TEST (%s) START' % id)
+			return
+		dt = t - self.multitest['last']
+		if not start:
+			if idx == 0 and self.multitest['delay'] > 0:
+				self.multitest['total'] += self.multitest['delay']
+			pprint('TEST (%s) COMPLETE -- Duration %.1fs' % (id, dt))
+			return
+		self.multitest['total'] += dt
+		self.multitest['last'] = t
+		avg = self.multitest['total'] / idx
+		if 'time' in self.multitest:
+			left = finish - datetime.now()
+			left -= timedelta(microseconds=left.microseconds)
+		else:
+			left = timedelta(seconds=((self.multitest['count'] - idx) * int(avg)))
+		pprint('TEST (%s) START - Avg Duration %.1fs, Time left %s' % \
+			(id, avg, str(left)))
+	def multiinit(self, c, d):
+		sz, unit = 'count', 'm'
+		if c.endswith('d') or c.endswith('h') or c.endswith('m'):
+			sz, unit, c = 'time', c[-1], c[:-1]
+		self.multitest['run'] = True
+		self.multitest[sz] = getArgInt('multi: n d (exec count)', c, 1, 1000000, False)
+		self.multitest['delay'] = getArgInt('multi: n d (delay between tests)', d, 0, 3600, False)
+		if unit == 'd':
+			self.multitest[sz] *= 1440
+		elif unit == 'h':
+			self.multitest[sz] *= 60
 
 sysvals = SystemValues()
 switchvalues = ['enable', 'disable', 'on', 'off', 'true', 'false', '1', '0']
@@ -1210,25 +1292,30 @@ class Data:
 		'resume_complete': {'order': 9, 'color': '#FFFFCC'},
 	}
 	errlist = {
-		'HWERROR' : '.*\[ *Hardware Error *\].*',
-		'FWBUG'   : '.*\[ *Firmware Bug *\].*',
-		'BUG'     : '.*BUG.*',
-		'ERROR'   : '.*ERROR.*',
-		'WARNING' : '.*WARNING.*',
-		'IRQ'     : '.*genirq: .*',
-		'TASKFAIL': '.*Freezing of tasks *.*',
-		'ACPI'    : '.*ACPI *(?P<b>[A-Za-z]*) *Error[: ].*',
-		'DEVFAIL' : '.* failed to (?P<b>[a-z]*) async: .*',
-		'DISKFULL': '.*No space left on device.*',
-		'USBERR'  : '.*usb .*device .*, error [0-9-]*',
-		'ATAERR'  : ' *ata[0-9\.]*: .*failed.*',
-		'MEIERR'  : ' *mei.*: .*failed.*',
-		'TPMERR'  : '(?i) *tpm *tpm[0-9]*: .*error.*',
+		'HWERROR' : r'.*\[ *Hardware Error *\].*',
+		'FWBUG'   : r'.*\[ *Firmware Bug *\].*',
+		'BUG'     : r'(?i).*\bBUG\b.*',
+		'ERROR'   : r'(?i).*\bERROR\b.*',
+		'WARNING' : r'(?i).*\bWARNING\b.*',
+		'FAULT'   : r'(?i).*\bFAULT\b.*',
+		'FAIL'    : r'(?i).*\bFAILED\b.*',
+		'INVALID' : r'(?i).*\bINVALID\b.*',
+		'CRASH'   : r'(?i).*\bCRASHED\b.*',
+		'IRQ'     : r'.*\bgenirq: .*',
+		'TASKFAIL': r'.*Freezing of tasks *.*',
+		'ACPI'    : r'.*\bACPI *(?P<b>[A-Za-z]*) *Error[: ].*',
+		'DISKFULL': r'.*\bNo space left on device.*',
+		'USBERR'  : r'.*usb .*device .*, error [0-9-]*',
+		'ATAERR'  : r' *ata[0-9\.]*: .*failed.*',
+		'MEIERR'  : r' *mei.*: .*failed.*',
+		'TPMERR'  : r'(?i) *tpm *tpm[0-9]*: .*error.*',
 	}
 	def __init__(self, num):
 		idchar = 'abcdefghij'
 		self.start = 0.0 # test start
 		self.end = 0.0   # test end
+		self.hwstart = 0 # rtc test start
+		self.hwend = 0   # rtc test end
 		self.tSuspended = 0.0 # low-level suspend start
 		self.tResumed = 0.0   # low-level resume start
 		self.tKernSus = 0.0   # kernel level suspend start
@@ -1240,10 +1327,8 @@ class Data:
 		self.stamp = 0
 		self.outfile = ''
 		self.kerror = False
-		self.battery = 0
-		self.wifi = 0
+		self.wifi = dict()
 		self.turbostat = 0
-		self.mcelog = 0
 		self.enterfail = ''
 		self.currphase = ''
 		self.pstl = dict()    # process timeline
@@ -1308,6 +1393,8 @@ class Data:
 				continue
 			dir = 'suspend' if t < self.tSuspended else 'resume'
 			msg = m.group('msg')
+			if re.match('capability: warning: .*', msg):
+				continue
 			for err in self.errlist:
 				if re.match(self.errlist[err], msg):
 					list.append((msg, err, dir, t, i, i))
@@ -1316,17 +1403,26 @@ class Data:
 		msglist = []
 		for msg, type, dir, t, idx1, idx2 in list:
 			msglist.append(msg)
-			sysvals.vprint('kernel %s found in %s at %f' % (type, dir, t))
 			self.errorinfo[dir].append((type, t, idx1, idx2))
 		if self.kerror:
 			sysvals.dmesglog = True
 		if len(self.dmesgtext) < 1 and sysvals.dmesgfile:
 			lf.close()
 		return msglist
-	def setStart(self, time):
+	def setStart(self, time, msg=''):
 		self.start = time
-	def setEnd(self, time):
+		if msg:
+			try:
+				self.hwstart = datetime.strptime(msg, sysvals.tmstart)
+			except:
+				self.hwstart = 0
+	def setEnd(self, time, msg=''):
 		self.end = time
+		if msg:
+			try:
+				self.hwend = datetime.strptime(msg, sysvals.tmend)
+			except:
+				self.hwend = 0
 	def isTraceEventOutsideDeviceCalls(self, pid, time):
 		for phase in self.sortedPhases():
 			list = self.dmesg[phase]['list']
@@ -1546,6 +1642,14 @@ class Data:
 					self.trimTime(tS, tL, left)
 					self.tLow.append('%.0f'%(tL*1000))
 			lp = phase
+	def getMemTime(self):
+		if not self.hwstart or not self.hwend:
+			return
+		stime = (self.tSuspended - self.start) * 1000000
+		rtime = (self.end - self.tResumed) * 1000000
+		hws = self.hwstart + timedelta(microseconds=stime)
+		hwr = self.hwend - timedelta(microseconds=rtime)
+		self.tLow.append('%.0f'%((hwr - hws).total_seconds() * 1000))
 	def getTimeValues(self):
 		sktime = (self.tSuspended - self.tKernSus) * 1000
 		rktime = (self.tKernRes - self.tResumed) * 1000
@@ -1883,9 +1987,9 @@ class Data:
 			c = self.addProcessUsageEvent(ps, tres)
 			if c > 0:
 				sysvals.vprint('%25s (res): %d' % (ps, c))
-	def handleEndMarker(self, time):
+	def handleEndMarker(self, time, msg=''):
 		dm = self.dmesg
-		self.setEnd(time)
+		self.setEnd(time, msg)
 		self.initDevicegroups()
 		# give suspend_prepare an end if needed
 		if 'suspend_prepare' in dm and dm['suspend_prepare']['end'] < 0:
@@ -2071,7 +2175,7 @@ class FTraceLine:
 		if not self.fevent:
 			return False
 		if sysvals.usetracemarkers:
-			if(self.name == 'SUSPEND START'):
+			if(self.name.startswith('SUSPEND START')):
 				return True
 			return False
 		else:
@@ -2084,7 +2188,7 @@ class FTraceLine:
 		if not self.fevent:
 			return False
 		if sysvals.usetracemarkers:
-			if(self.name == 'RESUME COMPLETE'):
+			if(self.name.startswith('RESUME COMPLETE')):
 				return True
 			return False
 		else:
@@ -2444,7 +2548,7 @@ class Timeline:
 	def createHeader(self, sv, stamp):
 		if(not stamp['time']):
 			return
-		self.html += '<div class="version"><a href="https://01.org/suspendresume">%s v%s</a></div>' \
+		self.html += '<div class="version"><a href="https://01.org/pm-graph">%s v%s</a></div>' \
 			% (sv.title, sv.version)
 		if sv.logmsg and sv.testlog:
 			self.html += '<button id="showtest" class="logbtn btnfmt">log</button>'
@@ -2670,14 +2774,11 @@ class TestProps:
 	stampfmt = '# [a-z]*-(?P<m>[0-9]{2})(?P<d>[0-9]{2})(?P<y>[0-9]{2})-'+\
 				'(?P<H>[0-9]{2})(?P<M>[0-9]{2})(?P<S>[0-9]{2})'+\
 				' (?P<host>.*) (?P<mode>.*) (?P<kernel>.*)$'
-	batteryfmt = '^# battery (?P<a1>\w*) (?P<c1>\d*) (?P<a2>\w*) (?P<c2>\d*)'
-	wififmt    = '^# wifi (?P<w>.*)'
+	wififmt    = '^# wifi *(?P<d>\S*) *(?P<s>\S*) *(?P<t>[0-9\.]+).*'
 	tstatfmt   = '^# turbostat (?P<t>\S*)'
-	mcelogfmt  = '^# mcelog (?P<m>\S*)'
 	testerrfmt = '^# enter_sleep_error (?P<e>.*)'
 	sysinfofmt = '^# sysinfo .*'
 	cmdlinefmt = '^# command \| (?P<cmd>.*)'
-	kparamsfmt = '^# kparams \| (?P<kp>.*)'
 	devpropfmt = '# Device Properties: .*'
 	pinfofmt   = '# platform-(?P<val>[a-z,A-Z,0-9]*): (?P<info>.*)'
 	tracertypefmt = '# tracer: (?P<t>.*)'
@@ -2695,11 +2796,8 @@ class TestProps:
 		self.stamp = ''
 		self.sysinfo = ''
 		self.cmdline = ''
-		self.kparams = ''
 		self.testerror = []
-		self.mcelog = []
 		self.turbostat = []
-		self.battery = []
 		self.wifi = []
 		self.fwdata = []
 		self.ftrace_line_fmt = self.ftrace_line_fmt_nop
@@ -2721,21 +2819,12 @@ class TestProps:
 		elif re.match(self.sysinfofmt, line):
 			self.sysinfo = line
 			return True
-		elif re.match(self.kparamsfmt, line):
-			self.kparams = line
-			return True
 		elif re.match(self.cmdlinefmt, line):
 			self.cmdline = line
 			return True
-		elif re.match(self.mcelogfmt, line):
-			self.mcelog.append(line)
-			return True
 		elif re.match(self.tstatfmt, line):
 			self.turbostat.append(line)
 			return True
-		elif re.match(self.batteryfmt, line):
-			self.battery.append(line)
-			return True
 		elif re.match(self.wififmt, line):
 			self.wifi.append(line)
 			return True
@@ -2749,6 +2838,8 @@ class TestProps:
 	def parseStamp(self, data, sv):
 		# global test data
 		m = re.match(self.stampfmt, self.stamp)
+		if not self.stamp or not m:
+			doError('data does not include the expected stamp')
 		data.stamp = {'time': '', 'host': '', 'mode': ''}
 		dt = datetime(int(m.group('y'))+2000, int(m.group('m')),
 			int(m.group('d')), int(m.group('H')), int(m.group('M')),
@@ -2780,10 +2871,6 @@ class TestProps:
 		m = re.match(self.cmdlinefmt, self.cmdline)
 		if m:
 			sv.cmdline = m.group('cmd')
-		if self.kparams:
-			m = re.match(self.kparamsfmt, self.kparams)
-			if m:
-				sv.kparams = m.group('kp')
 		if not sv.stamp:
 			sv.stamp = data.stamp
 		# firmware data
@@ -2793,26 +2880,18 @@ class TestProps:
 				data.fwSuspend, data.fwResume = int(m.group('s')), int(m.group('r'))
 				if(data.fwSuspend > 0 or data.fwResume > 0):
 					data.fwValid = True
-		# mcelog data
-		if len(self.mcelog) > data.testnumber:
-			m = re.match(self.mcelogfmt, self.mcelog[data.testnumber])
-			if m:
-				data.mcelog = sv.b64unzip(m.group('m'))
 		# turbostat data
 		if len(self.turbostat) > data.testnumber:
 			m = re.match(self.tstatfmt, self.turbostat[data.testnumber])
 			if m:
 				data.turbostat = m.group('t')
-		# battery data
-		if len(self.battery) > data.testnumber:
-			m = re.match(self.batteryfmt, self.battery[data.testnumber])
-			if m:
-				data.battery = m.groups()
 		# wifi data
 		if len(self.wifi) > data.testnumber:
 			m = re.match(self.wififmt, self.wifi[data.testnumber])
 			if m:
-				data.wifi = m.group('w')
+				data.wifi = {'dev': m.group('d'), 'stat': m.group('s'),
+					'time': float(m.group('t'))}
+				data.stamp['wifi'] = m.group('d')
 		# sleep mode enter errors
 		if len(self.testerror) > data.testnumber:
 			m = re.match(self.testerrfmt, self.testerror[data.testnumber])
@@ -3012,13 +3091,13 @@ def appendIncompleteTraceLog(testruns):
 		if(t.startMarker()):
 			data = testrun[testidx].data
 			tp.parseStamp(data, sysvals)
-			data.setStart(t.time)
+			data.setStart(t.time, t.name)
 			continue
 		if(not data):
 			continue
 		# find the end of resume
 		if(t.endMarker()):
-			data.setEnd(t.time)
+			data.setEnd(t.time, t.name)
 			testidx += 1
 			if(testidx >= testcnt):
 				break
@@ -3081,7 +3160,7 @@ def parseTraceLog(live=False):
 		doError('%s does not exist' % sysvals.ftracefile)
 	if not live:
 		sysvals.setupAllKprobes()
-	ksuscalls = ['pm_prepare_console']
+	ksuscalls = ['ksys_sync', 'pm_prepare_console']
 	krescalls = ['pm_restore_console']
 	tracewatch = ['irq_wakeup']
 	if sysvals.usekprobes:
@@ -3094,7 +3173,7 @@ def parseTraceLog(live=False):
 	testruns = []
 	testdata = []
 	testrun = 0
-	data = 0
+	data, limbo = 0, True
 	tf = sysvals.openlog(sysvals.ftracefile, 'r')
 	phase = 'suspend_prepare'
 	for line in tf:
@@ -3141,16 +3220,16 @@ def parseTraceLog(live=False):
 			continue
 		# find the start of suspend
 		if(t.startMarker()):
-			data = Data(len(testdata))
+			data, limbo = Data(len(testdata)), False
 			testdata.append(data)
 			testrun = TestRun(data)
 			testruns.append(testrun)
 			tp.parseStamp(data, sysvals)
-			data.setStart(t.time)
+			data.setStart(t.time, t.name)
 			data.first_suspend_prepare = True
 			phase = data.setPhase('suspend_prepare', t.time, True)
 			continue
-		if(not data):
+		if(not data or limbo):
 			continue
 		# process cpu exec line
 		if t.type == 'tracing_mark_write':
@@ -3167,14 +3246,16 @@ def parseTraceLog(live=False):
 				continue
 		# find the end of resume
 		if(t.endMarker()):
-			data.handleEndMarker(t.time)
+			if data.tKernRes == 0:
+				data.tKernRes = t.time
+			data.handleEndMarker(t.time, t.name)
 			if(not sysvals.usetracemarkers):
 				# no trace markers? then quit and be sure to finish recording
 				# the event we used to trigger resume end
 				if('thaw_processes' in testrun.ttemp and len(testrun.ttemp['thaw_processes']) > 0):
 					# if an entry exists, assume this is its end
 					testrun.ttemp['thaw_processes'][-1]['end'] = t.time
-				break
+			limbo = True
 			continue
 		# trace event processing
 		if(t.fevent):
@@ -3197,7 +3278,7 @@ def parseTraceLog(live=False):
 				# -- phase changes --
 				# start of kernel suspend
 				if(re.match('suspend_enter\[.*', t.name)):
-					if(isbegin):
+					if(isbegin and data.tKernSus == 0):
 						data.tKernSus = t.time
 					continue
 				# suspend_prepare start
@@ -3225,7 +3306,7 @@ def parseTraceLog(live=False):
 				elif(re.match('machine_suspend\[.*', t.name)):
 					if(isbegin):
 						lp = data.lastPhase()
-						if lp == 'resume_machine':
+						if lp.startswith('resume_machine'):
 							data.dmesg[lp]['end'] = t.time
 						phase = data.setPhase('suspend_machine', data.dmesg[lp]['end'], True)
 						data.setPhase(phase, t.time, False)
@@ -3320,7 +3401,8 @@ def parseTraceLog(live=False):
 					'proc': m_proc,
 				})
 				# start of kernel resume
-				if(phase == 'suspend_prepare' and kprobename in ksuscalls):
+				if(data.tKernSus == 0 and phase == 'suspend_prepare' \
+					and kprobename in ksuscalls):
 					data.tKernSus = t.time
 			elif(t.freturn):
 				if(key not in tp.ktemp) or len(tp.ktemp[key]) < 1:
@@ -3355,7 +3437,7 @@ def parseTraceLog(live=False):
 		sysvals.vprint('WARNING: ftrace start marker is missing')
 	if data and not data.devicegroups:
 		sysvals.vprint('WARNING: ftrace end marker is missing')
-		data.handleEndMarker(t.time)
+		data.handleEndMarker(t.time, t.name)
 
 	if sysvals.suspendmode == 'command':
 		for test in testruns:
@@ -3476,6 +3558,10 @@ def parseTraceLog(live=False):
 					data.fwValid = False
 				sysvals.vprint('WARNING: phase "%s" is missing!' % p)
 			lp = p
+		if not terr and 'dev' in data.wifi and data.wifi['stat'] == 'timeout':
+			terr = '%s%s failed in wifi_resume <i>(%s %.0fs timeout)</i>' % \
+				(sysvals.suspendmode, tn, data.wifi['dev'], data.wifi['time'])
+			error.append(terr)
 		if not terr and data.enterfail:
 			pprint('test%s FAILED: enter %s failed with %s' % (tn, sysvals.suspendmode, data.enterfail))
 			terr = 'test%s failed to enter %s mode' % (tn, sysvals.suspendmode)
@@ -3933,7 +4019,7 @@ def createHTMLSummarySimple(testruns, htmlfile, title):
 	tAvg, tMin, tMax, tMed = [0.0, 0.0], [0.0, 0.0], [0.0, 0.0], [dict(), dict()]
 	iMin, iMed, iMax = [0, 0], [0, 0], [0, 0]
 	num = 0
-	useturbo = False
+	useturbo = usewifi = False
 	lastmode = ''
 	cnt = dict()
 	for data in sorted(testruns, key=lambda v:(v['mode'], v['host'], v['kernel'], v['time'])):
@@ -3952,17 +4038,17 @@ def createHTMLSummarySimple(testruns, htmlfile, title):
 			tAvg, tMin, tMax, tMed = [0.0, 0.0], [0.0, 0.0], [0.0, 0.0], [dict(), dict()]
 			iMin, iMed, iMax = [0, 0], [0, 0], [0, 0]
 			num = 0
-		pkgpc10 = syslpi = ''
+		pkgpc10 = syslpi = wifi = ''
 		if 'pkgpc10' in data and 'syslpi' in data:
-			pkgpc10 = data['pkgpc10']
-			syslpi = data['syslpi']
-			useturbo = True
+			pkgpc10, syslpi, useturbo = data['pkgpc10'], data['syslpi'], True
+		if 'wifi' in data:
+			wifi, usewifi = data['wifi'], True
 		res = data['result']
 		tVal = [float(data['suspend']), float(data['resume'])]
 		list[mode]['data'].append([data['host'], data['kernel'],
 			data['time'], tVal[0], tVal[1], data['url'], res,
 			data['issues'], data['sus_worst'], data['sus_worsttime'],
-			data['res_worst'], data['res_worsttime'], pkgpc10, syslpi])
+			data['res_worst'], data['res_worsttime'], pkgpc10, syslpi, wifi])
 		idx = len(list[mode]['data']) - 1
 		if res.startswith('fail in'):
 			res = 'fail'
@@ -4002,7 +4088,12 @@ def createHTMLSummarySimple(testruns, htmlfile, title):
 	td = '\t<td>{0}</td>\n'
 	tdh = '\t<td{1}>{0}</td>\n'
 	tdlink = '\t<td><a href="{0}">html</a></td>\n'
-	colspan = '14' if useturbo else '12'
+	cols = 12
+	if useturbo:
+		cols += 2
+	if usewifi:
+		cols += 1
+	colspan = '%d' % cols
 
 	# table header
 	html += '<table>\n<tr>\n' + th.format('#') +\
@@ -4013,6 +4104,8 @@ def createHTMLSummarySimple(testruns, htmlfile, title):
 		th.format('Worst Resume Device') + th.format('RD Time')
 	if useturbo:
 		html += th.format('PkgPC10') + th.format('SysLPI')
+	if usewifi:
+		html += th.format('Wifi')
 	html += th.format('Detail')+'</tr>\n'
 	# export list into html
 	head = '<tr class="head"><td>{0}</td><td>{1}</td>'+\
@@ -4076,6 +4169,8 @@ def createHTMLSummarySimple(testruns, htmlfile, title):
 			if useturbo:
 				html += td.format(d[12])								# pkg_pc10
 				html += td.format(d[13])								# syslpi
+			if usewifi:
+				html += td.format(d[14])								# wifi
 			html += tdlink.format(d[5]) if d[5] else td.format('')		# url
 			html += '</tr>\n'
 			num += 1
@@ -4224,6 +4319,8 @@ def createHTML(testruns, testfail):
 			kerror = True
 		if(sysvals.suspendmode in ['freeze', 'standby']):
 			data.trimFreezeTime(testruns[-1].tSuspended)
+		else:
+			data.getMemTime()
 
 	# html function templates
 	html_error = '<div id="{1}" title="kernel error/warning" class="err" style="right:{0}%">{2}&rarr;</div>\n'
@@ -4242,13 +4339,10 @@ def createHTML(testruns, testfail):
 		'<td class="green">Execution Time: <b>{0} ms</b></td>'\
 		'<td class="yellow">Command: <b>{1}</b></td>'\
 		'</tr>\n</table>\n'
-	html_timegroups = '<table class="time2">\n<tr>'\
-		'<td class="green" title="time from kernel enter_state({5}) to firmware mode [kernel time only]">{4}Kernel Suspend: {0} ms</td>'\
-		'<td class="purple">{4}Firmware Suspend: {1} ms</td>'\
-		'<td class="purple">{4}Firmware Resume: {2} ms</td>'\
-		'<td class="yellow" title="time from firmware mode to return from kernel enter_state({5}) [kernel time only]">{4}Kernel Resume: {3} ms</td>'\
-		'</tr>\n</table>\n'
 	html_fail = '<table class="testfail"><tr><td>{0}</td></tr></table>\n'
+	html_kdesc = '<td class="{3}" title="time spent in kernel execution">{0}Kernel {2}: {1} ms</td>'
+	html_fwdesc = '<td class="{3}" title="time spent in firmware">{0}Firmware {2}: {1} ms</td>'
+	html_wifdesc = '<td class="yellow" title="time for wifi to reconnect after resume complete ({2})">{0}Wifi Resume: {1}</td>'
 
 	# html format variables
 	scaleH = 20
@@ -4264,13 +4358,10 @@ def createHTML(testruns, testfail):
 	# Generate the header for this timeline
 	for data in testruns:
 		tTotal = data.end - data.start
-		sktime, rktime = data.getTimeValues()
 		if(tTotal == 0):
 			doError('No timeline data')
-		if(len(data.tLow) > 0):
-			low_time = '+'.join(data.tLow)
 		if sysvals.suspendmode == 'command':
-			run_time = '%.0f'%((data.end-data.start)*1000)
+			run_time = '%.0f' % (tTotal * 1000)
 			if sysvals.testcommand:
 				testdesc = sysvals.testcommand
 			else:
@@ -4279,43 +4370,55 @@ def createHTML(testruns, testfail):
 				testdesc = ordinal(data.testnumber+1)+' '+testdesc
 			thtml = html_timetotal3.format(run_time, testdesc)
 			devtl.html += thtml
-		elif data.fwValid:
-			suspend_time = '%.0f'%(sktime + (data.fwSuspend/1000000.0))
-			resume_time = '%.0f'%(rktime + (data.fwResume/1000000.0))
-			testdesc1 = 'Total'
-			testdesc2 = ''
-			stitle = 'time from kernel enter_state(%s) to low-power mode [kernel & firmware time]' % sysvals.suspendmode
-			rtitle = 'time from low-power mode to return from kernel enter_state(%s) [firmware & kernel time]' % sysvals.suspendmode
-			if(len(testruns) > 1):
-				testdesc1 = testdesc2 = ordinal(data.testnumber+1)
-				testdesc2 += ' '
-			if(len(data.tLow) == 0):
-				thtml = html_timetotal.format(suspend_time, \
-					resume_time, testdesc1, stitle, rtitle)
-			else:
-				thtml = html_timetotal2.format(suspend_time, low_time, \
-					resume_time, testdesc1, stitle, rtitle)
-			devtl.html += thtml
+			continue
+		# typical full suspend/resume header
+		stot, rtot = sktime, rktime = data.getTimeValues()
+		ssrc, rsrc, testdesc, testdesc2 = ['kernel'], ['kernel'], 'Kernel', ''
+		if data.fwValid:
+			stot += (data.fwSuspend/1000000.0)
+			rtot += (data.fwResume/1000000.0)
+			ssrc.append('firmware')
+			rsrc.append('firmware')
+			testdesc = 'Total'
+		if 'time' in data.wifi and data.wifi['stat'] != 'timeout':
+			rtot += data.end - data.tKernRes + (data.wifi['time'] * 1000.0)
+			rsrc.append('wifi')
+			testdesc = 'Total'
+		suspend_time, resume_time = '%.3f' % stot, '%.3f' % rtot
+		stitle = 'time from kernel suspend start to %s mode [%s time]' % \
+			(sysvals.suspendmode, ' & '.join(ssrc))
+		rtitle = 'time from %s mode to kernel resume complete [%s time]' % \
+			(sysvals.suspendmode, ' & '.join(rsrc))
+		if(len(testruns) > 1):
+			testdesc = testdesc2 = ordinal(data.testnumber+1)
+			testdesc2 += ' '
+		if(len(data.tLow) == 0):
+			thtml = html_timetotal.format(suspend_time, \
+				resume_time, testdesc, stitle, rtitle)
+		else:
+			low_time = '+'.join(data.tLow)
+			thtml = html_timetotal2.format(suspend_time, low_time, \
+				resume_time, testdesc, stitle, rtitle)
+		devtl.html += thtml
+		if not data.fwValid and 'dev' not in data.wifi:
+			continue
+		# extra detail when the times come from multiple sources
+		thtml = '<table class="time2">\n<tr>'
+		thtml += html_kdesc.format(testdesc2, '%.3f'%sktime, 'Suspend', 'green')
+		if data.fwValid:
 			sftime = '%.3f'%(data.fwSuspend / 1000000.0)
 			rftime = '%.3f'%(data.fwResume / 1000000.0)
-			devtl.html += html_timegroups.format('%.3f'%sktime, \
-				sftime, rftime, '%.3f'%rktime, testdesc2, sysvals.suspendmode)
-		else:
-			suspend_time = '%.3f' % sktime
-			resume_time = '%.3f' % rktime
-			testdesc = 'Kernel'
-			stitle = 'time from kernel enter_state(%s) to firmware mode [kernel time only]' % sysvals.suspendmode
-			rtitle = 'time from firmware mode to return from kernel enter_state(%s) [kernel time only]' % sysvals.suspendmode
-			if(len(testruns) > 1):
-				testdesc = ordinal(data.testnumber+1)+' '+testdesc
-			if(len(data.tLow) == 0):
-				thtml = html_timetotal.format(suspend_time, \
-					resume_time, testdesc, stitle, rtitle)
+			thtml += html_fwdesc.format(testdesc2, sftime, 'Suspend', 'green')
+			thtml += html_fwdesc.format(testdesc2, rftime, 'Resume', 'yellow')
+		thtml += html_kdesc.format(testdesc2, '%.3f'%rktime, 'Resume', 'yellow')
+		if 'time' in data.wifi:
+			if data.wifi['stat'] != 'timeout':
+				wtime = '%.0f ms'%(data.end - data.tKernRes + (data.wifi['time'] * 1000.0))
 			else:
-				thtml = html_timetotal2.format(suspend_time, low_time, \
-					resume_time, testdesc, stitle, rtitle)
-			devtl.html += thtml
-
+				wtime = 'TIMEOUT'
+			thtml += html_wifdesc.format(testdesc2, wtime, data.wifi['dev'])
+		thtml += '</tr>\n</table>\n'
+		devtl.html += thtml
 	if testfail:
 		devtl.html += html_fail.format(testfail)
 
@@ -5082,28 +5185,32 @@ def setRuntimeSuspend(before=True):
 # Description:
 #	 Execute system suspend through the sysfs interface, then copy the output
 #	 dmesg and ftrace files to the test output directory.
-def executeSuspend():
+def executeSuspend(quiet=False):
 	pm = ProcessMonitor()
 	tp = sysvals.tpath
-	wifi = sysvals.checkWifi()
+	if sysvals.wifi:
+		wifi = sysvals.checkWifi()
 	testdata = []
-	battery = True if getBattery() else False
 	# run these commands to prepare the system for suspend
 	if sysvals.display:
-		pprint('SET DISPLAY TO %s' % sysvals.display.upper())
+		if not quiet:
+			pprint('SET DISPLAY TO %s' % sysvals.display.upper())
 		displayControl(sysvals.display)
 		time.sleep(1)
 	if sysvals.sync:
-		pprint('SYNCING FILESYSTEMS')
+		if not quiet:
+			pprint('SYNCING FILESYSTEMS')
 		call('sync', shell=True)
 	# mark the start point in the kernel ring buffer just as we start
 	sysvals.initdmesg()
 	# start ftrace
 	if(sysvals.usecallgraph or sysvals.usetraceevents):
-		pprint('START TRACING')
+		if not quiet:
+			pprint('START TRACING')
 		sysvals.fsetVal('1', 'tracing_on')
 		if sysvals.useprocmon:
 			pm.start()
+	sysvals.cmdinfo(True)
 	# execute however many s/r runs requested
 	for count in range(1,sysvals.execcount+1):
 		# x2delay in between test runs
@@ -5119,15 +5226,14 @@ def executeSuspend():
 				pprint('SUSPEND START')
 			else:
 				pprint('SUSPEND START (press a key to resume)')
-		sysvals.mcelog(True)
-		bat1 = getBattery() if battery else False
 		# set rtcwake
 		if(sysvals.rtcwake):
-			pprint('will issue an rtcwake in %d seconds' % sysvals.rtcwaketime)
+			if not quiet:
+				pprint('will issue an rtcwake in %d seconds' % sysvals.rtcwaketime)
 			sysvals.rtcWakeAlarmOn()
 		# start of suspend trace marker
 		if(sysvals.usecallgraph or sysvals.usetraceevents):
-			sysvals.fsetVal('SUSPEND START', 'trace_marker')
+			sysvals.fsetVal(datetime.now().strftime(sysvals.tmstart), 'trace_marker')
 		# predelay delay
 		if(count == 1 and sysvals.predelay > 0):
 			sysvals.fsetVal('WAIT %d' % sysvals.predelay, 'trace_marker')
@@ -5174,37 +5280,33 @@ def executeSuspend():
 		# return from suspend
 		pprint('RESUME COMPLETE')
 		if(sysvals.usecallgraph or sysvals.usetraceevents):
-			sysvals.fsetVal('RESUME COMPLETE', 'trace_marker')
+			sysvals.fsetVal(datetime.now().strftime(sysvals.tmend), 'trace_marker')
+		if sysvals.wifi and wifi:
+			tdata['wifi'] = sysvals.pollWifi(wifi)
 		if(sysvals.suspendmode == 'mem' or sysvals.suspendmode == 'command'):
 			tdata['fw'] = getFPDT(False)
-		mcelog = sysvals.mcelog()
-		if mcelog:
-			tdata['mcelog'] = mcelog
-		bat2 = getBattery() if battery else False
-		if battery and bat1 and bat2:
-			tdata['bat'] = (bat1, bat2)
-		if 'device' in wifi and 'ip' in wifi:
-			tdata['wifi'] = (wifi, sysvals.checkWifi())
 		testdata.append(tdata)
+	cmdafter = sysvals.cmdinfo(False)
 	# stop ftrace
 	if(sysvals.usecallgraph or sysvals.usetraceevents):
 		if sysvals.useprocmon:
 			pm.stop()
 		sysvals.fsetVal('0', 'tracing_on')
 	# grab a copy of the dmesg output
-	pprint('CAPTURING DMESG')
+	if not quiet:
+		pprint('CAPTURING DMESG')
 	sysvals.getdmesg(testdata)
 	# grab a copy of the ftrace output
 	if(sysvals.usecallgraph or sysvals.usetraceevents):
-		pprint('CAPTURING TRACE')
+		if not quiet:
+			pprint('CAPTURING TRACE')
 		op = sysvals.writeDatafileHeader(sysvals.ftracefile, testdata)
 		fp = open(tp+'trace', 'r')
 		for line in fp:
 			op.write(line)
 		op.close()
 		sysvals.fsetVal('', 'trace')
-		sysvals.platforminfo()
-	return testdata
+		sysvals.platforminfo(cmdafter)
 
 def readFile(file):
 	if os.path.islink(file):
@@ -5447,25 +5549,6 @@ def dmidecode(mempath, fatal=False):
 		count += 1
 	return out
 
-def getBattery():
-	p, charge, bat = '/sys/class/power_supply', 0, {}
-	if not os.path.exists(p):
-		return False
-	for d in os.listdir(p):
-		type = sysvals.getVal(os.path.join(p, d, 'type')).strip().lower()
-		if type != 'battery':
-			continue
-		for v in ['status', 'energy_now', 'capacity_now']:
-			bat[v] = sysvals.getVal(os.path.join(p, d, v)).strip().lower()
-		break
-	if 'status' not in bat:
-		return False
-	ac = False if 'discharging' in bat['status'] else True
-	for v in ['energy_now', 'capacity_now']:
-		if v in bat and bat[v]:
-			charge = int(bat[v])
-	return (ac, charge)
-
 def displayControl(cmd):
 	xset, ret = 'timeout 10 xset -d :0.0 {0}', 0
 	if sysvals.sudouser:
@@ -5715,6 +5798,17 @@ def statusCheck(probecheck=False):
 		status = 'rtcwake is not properly supported'
 	pprint('    is rtcwake supported: %s' % res)
 
+	# check info commands
+	pprint('    optional commands this tool may use for info:')
+	no = sysvals.colorText('MISSING')
+	yes = sysvals.colorText('FOUND', 32)
+	for c in ['turbostat', 'mcelog', 'lspci', 'lsusb']:
+		if c == 'turbostat':
+			res = yes if sysvals.haveTurbostat() else no
+		else:
+			res = yes if sysvals.getExec(c) else no
+		pprint('        %s: %s' % (c, res))
+
 	if not probecheck:
 		return status
 
@@ -5780,8 +5874,9 @@ def getArgFloat(name, args, min, max, main=True):
 		doError(name+': value should be between %f and %f' % (min, max), True)
 	return val
 
-def processData(live=False):
-	pprint('PROCESSING DATA')
+def processData(live=False, quiet=False):
+	if not quiet:
+		pprint('PROCESSING DATA')
 	sysvals.vprint('usetraceevents=%s, usetracemarkers=%s, usekprobes=%s' % \
 		(sysvals.usetraceevents, sysvals.usetracemarkers, sysvals.usekprobes))
 	error = ''
@@ -5796,20 +5891,17 @@ def processData(live=False):
 			parseKernelLog(data)
 		if(sysvals.ftracefile and (sysvals.usecallgraph or sysvals.usetraceevents)):
 			appendIncompleteTraceLog(testruns)
+	if not sysvals.stamp:
+		pprint('ERROR: data does not include the expected stamp')
+		return (testruns, {'error': 'timeline generation failed'})
 	shown = ['bios', 'biosdate', 'cpu', 'host', 'kernel', 'man', 'memfr',
-			'memsz', 'mode', 'numcpu', 'plat', 'time']
+			'memsz', 'mode', 'numcpu', 'plat', 'time', 'wifi']
 	sysvals.vprint('System Info:')
 	for key in sorted(sysvals.stamp):
 		if key in shown:
 			sysvals.vprint('    %-8s : %s' % (key.upper(), sysvals.stamp[key]))
-	if sysvals.kparams:
-		sysvals.vprint('Kparams:\n    %s' % sysvals.kparams)
 	sysvals.vprint('Command:\n    %s' % sysvals.cmdline)
 	for data in testruns:
-		if data.mcelog:
-			sysvals.vprint('MCELOG Data:')
-			for line in data.mcelog.split('\n'):
-				sysvals.vprint('    %s' % line)
 		if data.turbostat:
 			idx, s = 0, 'Turbostat:\n    '
 			for val in data.turbostat.split('|'):
@@ -5819,23 +5911,13 @@ def processData(live=False):
 					s += '\n    '
 				s += val + ' '
 			sysvals.vprint(s)
-		if data.battery:
-			a1, c1, a2, c2 = data.battery
-			s = 'Battery:\n    Before - AC: %s, Charge: %d\n     After - AC: %s, Charge: %d' % \
-				(a1, int(c1), a2, int(c2))
-			sysvals.vprint(s)
-		if data.wifi:
-			w = data.wifi.replace('|', ' ').split(',')
-			s = 'Wifi:\n    Before %s\n     After %s' % \
-				(w[0], w[1])
-			sysvals.vprint(s)
 		data.printDetails()
-		if len(sysvals.platinfo) > 0:
-			sysvals.vprint('\nPlatform Info:')
-			for info in sysvals.platinfo:
-				sysvals.vprint(info[0]+' - '+info[1])
-				sysvals.vprint(info[2])
-			sysvals.vprint('')
+	if len(sysvals.platinfo) > 0:
+		sysvals.vprint('\nPlatform Info:')
+		for info in sysvals.platinfo:
+			sysvals.vprint('[%s - %s]' % (info[0], info[1]))
+			sysvals.vprint(info[2])
+		sysvals.vprint('')
 	if sysvals.cgdump:
 		for data in testruns:
 			data.debugPrint()
@@ -5845,7 +5927,8 @@ def processData(live=False):
 		return (testruns, {'error': 'timeline generation failed'})
 	sysvals.vprint('Creating the html timeline (%s)...' % sysvals.htmlfile)
 	createHTML(testruns, error)
-	pprint('DONE')
+	if not quiet:
+		pprint('DONE')
 	data = testruns[0]
 	stamp = data.stamp
 	stamp['suspend'], stamp['resume'] = data.getTimeValues()
@@ -5872,31 +5955,28 @@ def rerunTest(htmlfile=''):
 			doError('a directory already exists with this name: %s' % sysvals.htmlfile)
 		elif not os.access(sysvals.htmlfile, os.W_OK):
 			doError('missing permission to write to %s' % sysvals.htmlfile)
-	testruns, stamp = processData(False)
-	sysvals.logmsg = ''
+	testruns, stamp = processData()
+	sysvals.resetlog()
 	return stamp
 
 # Function: runTest
 # Description:
 #	 execute a suspend/resume, gather the logs, and generate the output
-def runTest(n=0):
+def runTest(n=0, quiet=False):
 	# prepare for the test
-	sysvals.initFtrace()
+	sysvals.initFtrace(quiet)
 	sysvals.initTestOutput('suspend')
 
 	# execute the test
-	testdata = executeSuspend()
+	executeSuspend(quiet)
 	sysvals.cleanupFtrace()
 	if sysvals.skiphtml:
+		sysvals.outputResult({}, n)
 		sysvals.sudoUserchown(sysvals.testdir)
 		return
-	if not testdata[0]['error']:
-		testruns, stamp = processData(True)
-		for data in testruns:
-			del data
-	else:
-		stamp = testdata[0]
-
+	testruns, stamp = processData(True, quiet)
+	for data in testruns:
+		del data
 	sysvals.sudoUserchown(sysvals.testdir)
 	sysvals.outputResult(stamp, n)
 	if 'error' in stamp:
@@ -5904,13 +5984,14 @@ def runTest(n=0):
 	return 0
 
 def find_in_html(html, start, end, firstonly=True):
-	n, out = 0, []
-	while n < len(html):
-		m = re.search(start, html[n:])
+	n, cnt, out = 0, len(html), []
+	while n < cnt:
+		e = cnt if (n + 10000 > cnt or n == 0) else n + 10000
+		m = re.search(start, html[n:e])
 		if not m:
 			break
 		i = m.end()
-		m = re.search(end, html[n+i:])
+		m = re.search(end, html[n+i:e])
 		if not m:
 			break
 		j = m.start()
@@ -5945,7 +6026,7 @@ def data_from_html(file, outpath, issues, fulldetail=False):
 	tstr = dt.strftime('%Y/%m/%d %H:%M:%S')
 	error = find_in_html(html, '<table class="testfail"><tr><td>', '</td>')
 	if error:
-		m = re.match('[a-z]* failed in (?P<p>[a-z0-9_]*) phase', error)
+		m = re.match('[a-z0-9]* failed in (?P<p>\S*).*', error)
 		if m:
 			result = 'fail in %s' % m.group('p')
 		else:
@@ -5974,6 +6055,9 @@ def data_from_html(file, outpath, issues, fulldetail=False):
 				elist[err[0]] += 1
 		for i in elist:
 			ilist.append('%sx%d' % (i, elist[i]) if elist[i] > 1 else i)
+	wifi = find_in_html(html, 'Wifi Resume: ', '</td>')
+	if wifi:
+		extra['wifi'] = wifi
 	low = find_in_html(html, 'freeze time: <b>', ' ms</b>')
 	if low and '|' in low:
 		issue = 'FREEZEx%d' % len(low.split('|'))
@@ -6048,13 +6132,15 @@ def genHtml(subdir, force=False):
 	for dirname, dirnames, filenames in os.walk(subdir):
 		sysvals.dmesgfile = sysvals.ftracefile = sysvals.htmlfile = ''
 		for filename in filenames:
-			if(re.match('.*_dmesg.txt', filename)):
-				sysvals.dmesgfile = os.path.join(dirname, filename)
-			elif(re.match('.*_ftrace.txt', filename)):
-				sysvals.ftracefile = os.path.join(dirname, filename)
+			file = os.path.join(dirname, filename)
+			if sysvals.usable(file):
+				if(re.match('.*_dmesg.txt', filename)):
+					sysvals.dmesgfile = file
+				elif(re.match('.*_ftrace.txt', filename)):
+					sysvals.ftracefile = file
 		sysvals.setOutputFile()
-		if sysvals.ftracefile and sysvals.htmlfile and \
-			(force or not os.path.exists(sysvals.htmlfile)):
+		if (sysvals.dmesgfile or sysvals.ftracefile) and sysvals.htmlfile and \
+			(force or not sysvals.usable(sysvals.htmlfile)):
 			pprint('FTRACE: %s' % sysvals.ftracefile)
 			if sysvals.dmesgfile:
 				pprint('DMESG : %s' % sysvals.dmesgfile)
@@ -6169,9 +6255,9 @@ def configFromFile(file):
 				sysvals.cgtest = getArgInt('cgtest', value, 0, 1, False)
 			elif(option == 'cgphase'):
 				d = Data(0)
-				if value not in d.sortedPhases():
+				if value not in d.phasedef:
 					doError('invalid phase --> (%s: %s), valid phases are %s'\
-						% (option, value, d.sortedPhases()), True)
+						% (option, value, d.phasedef.keys()), True)
 				sysvals.cgphase = value
 			elif(option == 'fadd'):
 				file = sysvals.configFile(value)
@@ -6184,9 +6270,7 @@ def configFromFile(file):
 				nums = value.split()
 				if len(nums) != 2:
 					doError('multi requires 2 integers (exec_count and delay)', True)
-				sysvals.multitest['run'] = True
-				sysvals.multitest['count'] = getArgInt('multi: n d (exec count)', nums[0], 2, 1000000, False)
-				sysvals.multitest['delay'] = getArgInt('multi: n d (delay between tests)', nums[1], 0, 3600, False)
+				sysvals.multiinit(nums[0], nums[1])
 			elif(option == 'devicefilter'):
 				sysvals.setDeviceFilter(value)
 			elif(option == 'expandcg'):
@@ -6342,6 +6426,7 @@ def printHelp():
 	'   -srgap       Add a visible gap in the timeline between sus/res (default: disabled)\n'\
 	'   -skiphtml    Run the test and capture the trace logs, but skip the timeline (default: disabled)\n'\
 	'   -result fn   Export a results table to a text file for parsing.\n'\
+	'   -wifi        If a wifi connection is available, check that it reconnects after resume.\n'\
 	'  [testprep]\n'\
 	'   -sync        Sync the filesystems before starting the test\n'\
 	'   -rs on/off   Enable/disable runtime suspend for all devices, restore all after test\n'\
@@ -6356,8 +6441,10 @@ def printHelp():
 	'   -predelay t  Include t ms delay before 1st suspend (default: 0 ms)\n'\
 	'   -postdelay t Include t ms delay after last resume (default: 0 ms)\n'\
 	'   -mindev ms   Discard all device blocks shorter than ms milliseconds (e.g. 0.001 for us)\n'\
-	'   -multi n d   Execute <n> consecutive tests at <d> seconds intervals. The outputs will\n'\
-	'                be created in a new subdirectory with a summary page.\n'\
+	'   -multi n d   Execute <n> consecutive tests at <d> seconds intervals. If <n> is followed\n'\
+	'                by a "d", "h", or "m" execute for <n> days, hours, or mins instead.\n'\
+	'                The outputs will be created in a new subdirectory with a summary page.\n'\
+	'   -maxfail n   Abort a -multi run after n consecutive fails (default is 0 = never abort)\n'\
 	'  [debug]\n'\
 	'   -f           Use ftrace to create device callgraphs (default: disabled)\n'\
 	'   -ftop        Use ftrace on the top level call: "%s" (default: disabled)\n'\
@@ -6379,11 +6466,11 @@ def printHelp():
 	'   -modes       List available suspend modes\n'\
 	'   -status      Test to see if the system is enabled to run this tool\n'\
 	'   -fpdt        Print out the contents of the ACPI Firmware Performance Data Table\n'\
-	'   -battery     Print out battery info (if available)\n'\
-	'   -wifi        Print out wifi connection info (if wireless-tools and device exists)\n'\
+	'   -wificheck   Print out wifi connection info\n'\
 	'   -x<mode>     Test xset by toggling the given mode (on/off/standby/suspend)\n'\
 	'   -sysinfo     Print out system info extracted from BIOS\n'\
 	'   -devinfo     Print out the pm settings of all devices which support runtime suspend\n'\
+	'   -cmdinfo     Print out all the platform info collected before and after suspend/resume\n'\
 	'   -flist       Print the list of functions currently being captured in ftrace\n'\
 	'   -flistall    Print all functions capable of being captured in ftrace\n'\
 	'   -summary dir Create a summary of tests in this dir [-genhtml builds missing html]\n'\
@@ -6399,8 +6486,8 @@ if __name__ == '__main__':
 	genhtml = False
 	cmd = ''
 	simplecmds = ['-sysinfo', '-modes', '-fpdt', '-flist', '-flistall',
-		'-devinfo', '-status', '-battery', '-xon', '-xoff', '-xstandby',
-		'-xsuspend', '-xinit', '-xreset', '-xstat', '-wifi']
+		'-devinfo', '-status', '-xon', '-xoff', '-xstandby', '-xsuspend',
+		'-xinit', '-xreset', '-xstat', '-wificheck', '-cmdinfo']
 	if '-f' in sys.argv:
 		sysvals.cgskip = sysvals.configFile('cgskip.txt')
 	# loop through the command line arguments
@@ -6462,8 +6549,15 @@ if __name__ == '__main__':
 			sysvals.usedevsrc = True
 		elif(arg == '-sync'):
 			sysvals.sync = True
+		elif(arg == '-wifi'):
+			sysvals.wifi = True
 		elif(arg == '-gzip'):
 			sysvals.gzip = True
+		elif(arg == '-info'):
+			try:
+				val = next(args)
+			except:
+				doError('-info requires one string argument', True)
 		elif(arg == '-rs'):
 			try:
 				val = next(args)
@@ -6555,10 +6649,14 @@ if __name__ == '__main__':
 			sysvals.cgexp = True
 		elif(arg == '-srgap'):
 			sysvals.srgap = 5
+		elif(arg == '-maxfail'):
+			sysvals.maxfail = getArgInt('-maxfail', args, 0, 1000000)
 		elif(arg == '-multi'):
-			sysvals.multitest['run'] = True
-			sysvals.multitest['count'] = getArgInt('-multi n d (exec count)', args, 2, 1000000)
-			sysvals.multitest['delay'] = getArgInt('-multi n d (delay between tests)', args, 0, 3600)
+			try:
+				c, d = next(args), next(args)
+			except:
+				doError('-multi requires two values', True)
+			sysvals.multiinit(c, d)
 		elif(arg == '-o'):
 			try:
 				val = next(args)
@@ -6655,13 +6753,6 @@ if __name__ == '__main__':
 		elif(cmd == 'fpdt'):
 			if not getFPDT(True):
 				ret = 1
-		elif(cmd == 'battery'):
-			out = getBattery()
-			if out:
-				pprint('AC Connect    : %s\nBattery Charge: %d' % out)
-			else:
-				pprint('no battery found')
-				ret = 1
 		elif(cmd == 'sysinfo'):
 			sysvals.printSystemInfo(True)
 		elif(cmd == 'devinfo'):
@@ -6679,13 +6770,15 @@ if __name__ == '__main__':
 			ret = displayControl(cmd[1:])
 		elif(cmd == 'xstat'):
 			pprint('Display Status: %s' % displayControl('stat').upper())
-		elif(cmd == 'wifi'):
-			out = sysvals.checkWifi()
-			if 'device' not in out:
-				pprint('WIFI interface not found')
+		elif(cmd == 'wificheck'):
+			dev = sysvals.checkWifi()
+			if dev:
+				print('%s is connected' % sysvals.wifiDetails(dev))
 			else:
-				for key in sorted(out):
-					pprint('%6s: %s' % (key.upper(), out[key]))
+				print('No wifi connection found')
+		elif(cmd == 'cmdinfo'):
+			for out in sysvals.cmdinfo(False, True):
+				print('[%s - %s]\n%s\n' % out)
 		sys.exit(ret)
 
 	# if instructed, re-analyze existing data files
@@ -6720,24 +6813,38 @@ if __name__ == '__main__':
 	setRuntimeSuspend(True)
 	if sysvals.display:
 		displayControl('init')
-	ret = 0
+	failcnt, ret = 0, 0
 	if sysvals.multitest['run']:
 		# run multiple tests in a separate subdirectory
 		if not sysvals.outdir:
-			s = 'suspend-x%d' % sysvals.multitest['count']
-			sysvals.outdir = datetime.now().strftime(s+'-%y%m%d-%H%M%S')
+			if 'time' in sysvals.multitest:
+				s = '-%dm' % sysvals.multitest['time']
+			else:
+				s = '-x%d' % sysvals.multitest['count']
+			sysvals.outdir = datetime.now().strftime('suspend-%y%m%d-%H%M%S'+s)
 		if not os.path.isdir(sysvals.outdir):
 			os.makedirs(sysvals.outdir)
+		sysvals.sudoUserchown(sysvals.outdir)
+		finish = datetime.now()
+		if 'time' in sysvals.multitest:
+			finish += timedelta(minutes=sysvals.multitest['time'])
 		for i in range(sysvals.multitest['count']):
-			if(i != 0):
+			sysvals.multistat(True, i, finish)
+			if i != 0 and sysvals.multitest['delay'] > 0:
 				pprint('Waiting %d seconds...' % (sysvals.multitest['delay']))
 				time.sleep(sysvals.multitest['delay'])
-			pprint('TEST (%d/%d) START' % (i+1, sysvals.multitest['count']))
 			fmt = 'suspend-%y%m%d-%H%M%S'
 			sysvals.testdir = os.path.join(sysvals.outdir, datetime.now().strftime(fmt))
-			ret = runTest(i+1)
-			pprint('TEST (%d/%d) COMPLETE' % (i+1, sysvals.multitest['count']))
-			sysvals.logmsg = ''
+			ret = runTest(i+1, True)
+			failcnt = 0 if not ret else failcnt + 1
+			if sysvals.maxfail > 0 and failcnt >= sysvals.maxfail:
+				pprint('Maximum fail count of %d reached, aborting multitest' % (sysvals.maxfail))
+				break
+			time.sleep(5)
+			sysvals.resetlog()
+			sysvals.multistat(False, i, finish)
+			if 'time' in sysvals.multitest and datetime.now() >= finish:
+				break
 		if not sysvals.skiphtml:
 			runSummary(sysvals.outdir, False, False)
 		sysvals.sudoUserchown(sysvals.outdir)
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
index cde463af7071..c2642517e1d8 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
@@ -5,7 +5,8 @@
 static void test_fexit_bpf2bpf_common(const char *obj_file,
 				      const char *target_obj_file,
 				      int prog_cnt,
-				      const char **prog_name)
+				      const char **prog_name,
+				      bool run_prog)
 {
 	struct bpf_object *obj = NULL, *pkt_obj;
 	int err, pkt_fd, i;
@@ -18,7 +19,8 @@ static void test_fexit_bpf2bpf_common(const char *obj_file,
 
 	err = bpf_prog_load(target_obj_file, BPF_PROG_TYPE_UNSPEC,
 			    &pkt_obj, &pkt_fd);
-	if (CHECK(err, "prog_load sched cls", "err %d errno %d\n", err, errno))
+	if (CHECK(err, "tgt_prog_load", "file %s err %d errno %d\n",
+		  target_obj_file, err, errno))
 		return;
 	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts,
 			    .attach_prog_fd = pkt_fd,
@@ -33,7 +35,7 @@ static void test_fexit_bpf2bpf_common(const char *obj_file,
 
 	obj = bpf_object__open_file(obj_file, &opts);
 	if (CHECK(IS_ERR_OR_NULL(obj), "obj_open",
-		  "failed to open fexit_bpf2bpf: %ld\n",
+		  "failed to open %s: %ld\n", obj_file,
 		  PTR_ERR(obj)))
 		goto close_prog;
 
@@ -49,6 +51,10 @@ static void test_fexit_bpf2bpf_common(const char *obj_file,
 		if (CHECK(IS_ERR(link[i]), "attach_trace", "failed to link\n"))
 			goto close_prog;
 	}
+
+	if (!run_prog)
+		goto close_prog;
+
 	data_map = bpf_object__find_map_by_name(obj, "fexit_bp.bss");
 	if (CHECK(!data_map, "find_data_map", "data map not found\n"))
 		goto close_prog;
@@ -89,7 +95,7 @@ static void test_target_no_callees(void)
 	test_fexit_bpf2bpf_common("./fexit_bpf2bpf_simple.o",
 				  "./test_pkt_md_access.o",
 				  ARRAY_SIZE(prog_name),
-				  prog_name);
+				  prog_name, true);
 }
 
 static void test_target_yes_callees(void)
@@ -103,7 +109,7 @@ static void test_target_yes_callees(void)
 	test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o",
 				  "./test_pkt_access.o",
 				  ARRAY_SIZE(prog_name),
-				  prog_name);
+				  prog_name, true);
 }
 
 static void test_func_replace(void)
@@ -120,7 +126,18 @@ static void test_func_replace(void)
 	test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o",
 				  "./test_pkt_access.o",
 				  ARRAY_SIZE(prog_name),
-				  prog_name);
+				  prog_name, true);
+}
+
+static void test_func_replace_verify(void)
+{
+	const char *prog_name[] = {
+		"freplace/do_bind",
+	};
+	test_fexit_bpf2bpf_common("./freplace_connect4.o",
+				  "./connect4_prog.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, false);
 }
 
 void test_fexit_bpf2bpf(void)
@@ -128,4 +145,5 @@ void test_fexit_bpf2bpf(void)
 	test_target_no_callees();
 	test_target_yes_callees();
 	test_func_replace();
+	test_func_replace_verify();
 }
diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c
index 75085119c5bb..ad3c498a8150 100644
--- a/tools/testing/selftests/bpf/progs/connect4_prog.c
+++ b/tools/testing/selftests/bpf/progs/connect4_prog.c
@@ -18,11 +18,25 @@
 
 int _version SEC("version") = 1;
 
+__attribute__ ((noinline))
+int do_bind(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in sa = {};
+
+	sa.sin_family = AF_INET;
+	sa.sin_port = bpf_htons(0);
+	sa.sin_addr.s_addr = bpf_htonl(SRC_REWRITE_IP4);
+
+	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
+		return 0;
+
+	return 1;
+}
+
 SEC("cgroup/connect4")
 int connect_v4_prog(struct bpf_sock_addr *ctx)
 {
 	struct bpf_sock_tuple tuple = {};
-	struct sockaddr_in sa;
 	struct bpf_sock *sk;
 
 	/* Verify that new destination is available. */
@@ -56,17 +70,7 @@ int connect_v4_prog(struct bpf_sock_addr *ctx)
 	ctx->user_ip4 = bpf_htonl(DST_REWRITE_IP4);
 	ctx->user_port = bpf_htons(DST_REWRITE_PORT4);
 
-	/* Rewrite source. */
-	memset(&sa, 0, sizeof(sa));
-
-	sa.sin_family = AF_INET;
-	sa.sin_port = bpf_htons(0);
-	sa.sin_addr.s_addr = bpf_htonl(SRC_REWRITE_IP4);
-
-	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
-		return 0;
-
-	return 1;
+	return do_bind(ctx) ? 1 : 0;
 }
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_connect4.c b/tools/testing/selftests/bpf/progs/freplace_connect4.c
new file mode 100644
index 000000000000..a0ae84230699
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_connect4.c
@@ -0,0 +1,18 @@
+#include <linux/stddef.h>
+#include <linux/ipv6.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("freplace/do_bind")
+int new_do_bind(struct bpf_sock_addr *ctx)
+{
+  struct sockaddr_in sa = {};
+
+  bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa));
+  return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_haskv.c b/tools/testing/selftests/bpf/progs/test_btf_haskv.c
index 88b0566da13d..31538c9ed193 100644
--- a/tools/testing/selftests/bpf/progs/test_btf_haskv.c
+++ b/tools/testing/selftests/bpf/progs/test_btf_haskv.c
@@ -20,20 +20,12 @@ struct bpf_map_def SEC("maps") btf_map = {
 
 BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts);
 
-struct dummy_tracepoint_args {
-	unsigned long long pad;
-	struct sock *sock;
-};
-
 __attribute__((noinline))
-int test_long_fname_2(struct dummy_tracepoint_args *arg)
+int test_long_fname_2(void)
 {
 	struct ipv_counts *counts;
 	int key = 0;
 
-	if (!arg->sock)
-		return 0;
-
 	counts = bpf_map_lookup_elem(&btf_map, &key);
 	if (!counts)
 		return 0;
@@ -44,15 +36,15 @@ int test_long_fname_2(struct dummy_tracepoint_args *arg)
 }
 
 __attribute__((noinline))
-int test_long_fname_1(struct dummy_tracepoint_args *arg)
+int test_long_fname_1(void)
 {
-	return test_long_fname_2(arg);
+	return test_long_fname_2();
 }
 
 SEC("dummy_tracepoint")
-int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
+int _dummy_tracepoint(void *arg)
 {
-	return test_long_fname_1(arg);
+	return test_long_fname_1();
 }
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_newkv.c b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
index a924e53c8e9d..6c5560162746 100644
--- a/tools/testing/selftests/bpf/progs/test_btf_newkv.c
+++ b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
@@ -28,20 +28,12 @@ struct {
 	__type(value, struct ipv_counts);
 } btf_map SEC(".maps");
 
-struct dummy_tracepoint_args {
-	unsigned long long pad;
-	struct sock *sock;
-};
-
 __attribute__((noinline))
-int test_long_fname_2(struct dummy_tracepoint_args *arg)
+int test_long_fname_2(void)
 {
 	struct ipv_counts *counts;
 	int key = 0;
 
-	if (!arg->sock)
-		return 0;
-
 	counts = bpf_map_lookup_elem(&btf_map, &key);
 	if (!counts)
 		return 0;
@@ -57,15 +49,15 @@ int test_long_fname_2(struct dummy_tracepoint_args *arg)
 }
 
 __attribute__((noinline))
-int test_long_fname_1(struct dummy_tracepoint_args *arg)
+int test_long_fname_1(void)
 {
-	return test_long_fname_2(arg);
+	return test_long_fname_2();
 }
 
 SEC("dummy_tracepoint")
-int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
+int _dummy_tracepoint(void *arg)
 {
-	return test_long_fname_1(arg);
+	return test_long_fname_1();
 }
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_nokv.c b/tools/testing/selftests/bpf/progs/test_btf_nokv.c
index 983aedd1c072..506da7fd2da2 100644
--- a/tools/testing/selftests/bpf/progs/test_btf_nokv.c
+++ b/tools/testing/selftests/bpf/progs/test_btf_nokv.c
@@ -17,20 +17,12 @@ struct bpf_map_def SEC("maps") btf_map = {
 	.max_entries = 4,
 };
 
-struct dummy_tracepoint_args {
-	unsigned long long pad;
-	struct sock *sock;
-};
-
 __attribute__((noinline))
-int test_long_fname_2(struct dummy_tracepoint_args *arg)
+int test_long_fname_2(void)
 {
 	struct ipv_counts *counts;
 	int key = 0;
 
-	if (!arg->sock)
-		return 0;
-
 	counts = bpf_map_lookup_elem(&btf_map, &key);
 	if (!counts)
 		return 0;
@@ -41,15 +33,15 @@ int test_long_fname_2(struct dummy_tracepoint_args *arg)
 }
 
 __attribute__((noinline))
-int test_long_fname_1(struct dummy_tracepoint_args *arg)
+int test_long_fname_1(void)
 {
-	return test_long_fname_2(arg);
+	return test_long_fname_2();
 }
 
 SEC("dummy_tracepoint")
-int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
+int _dummy_tracepoint(void *arg)
 {
-	return test_long_fname_1(arg);
+	return test_long_fname_1();
 }
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c
index 8da77cda5f4a..305fae8f80a9 100644
--- a/tools/testing/selftests/bpf/test_btf.c
+++ b/tools/testing/selftests/bpf/test_btf.c
@@ -2854,7 +2854,7 @@ static struct btf_raw_test raw_tests[] = {
 	.value_type_id = 1,
 	.max_entries = 4,
 	.btf_load_err = true,
-	.err_str = "vlen != 0",
+	.err_str = "Invalid func linkage",
 },
 
 {
diff --git a/tools/testing/selftests/bpf/verifier/stack_ptr.c b/tools/testing/selftests/bpf/verifier/stack_ptr.c
index 7276620ef242..8bfeb77c60bd 100644
--- a/tools/testing/selftests/bpf/verifier/stack_ptr.c
+++ b/tools/testing/selftests/bpf/verifier/stack_ptr.c
@@ -315,3 +315,43 @@
 	},
 	.result = ACCEPT,
 },
+{
+	"store PTR_TO_STACK in R10 to array map using BPF_B",
+	.insns = {
+	/* Load pointer to map. */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	/* Copy R10 to R9. */
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_10),
+	/* Pollute other registers with unaligned values. */
+	BPF_MOV64_IMM(BPF_REG_2, -1),
+	BPF_MOV64_IMM(BPF_REG_3, -1),
+	BPF_MOV64_IMM(BPF_REG_4, -1),
+	BPF_MOV64_IMM(BPF_REG_5, -1),
+	BPF_MOV64_IMM(BPF_REG_6, -1),
+	BPF_MOV64_IMM(BPF_REG_7, -1),
+	BPF_MOV64_IMM(BPF_REG_8, -1),
+	/* Store both R9 and R10 with BPF_B and read back. */
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, 0),
+	BPF_LDX_MEM(BPF_B, BPF_REG_2, BPF_REG_1, 0),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_9, 0),
+	BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_1, 0),
+	/* Should read back as same value. */
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_2, BPF_REG_3, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 3 },
+	.result = ACCEPT,
+	.retval = 42,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/value_illegal_alu.c b/tools/testing/selftests/bpf/verifier/value_illegal_alu.c
index 7f6c232cd842..ed1c2cea1dea 100644
--- a/tools/testing/selftests/bpf/verifier/value_illegal_alu.c
+++ b/tools/testing/selftests/bpf/verifier/value_illegal_alu.c
@@ -88,6 +88,7 @@
 	BPF_EXIT_INSN(),
 	},
 	.fixup_map_hash_48b = { 3 },
+	.errstr_unpriv = "leaking pointer from stack off -8",
 	.errstr = "R0 invalid mem access 'inv'",
 	.result = REJECT,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
diff --git a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
index 11eee0b60040..d979ff14775a 100644
--- a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
+++ b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
@@ -3,6 +3,7 @@
 #define _GNU_SOURCE
 #include <poll.h>
 #include <unistd.h>
+#include <assert.h>
 #include <signal.h>
 #include <pthread.h>
 #include <sys/epoll.h>
@@ -3136,4 +3137,149 @@ TEST(epoll59)
 	close(ctx.sfd[0]);
 }
 
+enum {
+	EPOLL60_EVENTS_NR = 10,
+};
+
+struct epoll60_ctx {
+	volatile int stopped;
+	int ready;
+	int waiters;
+	int epfd;
+	int evfd[EPOLL60_EVENTS_NR];
+};
+
+static void *epoll60_wait_thread(void *ctx_)
+{
+	struct epoll60_ctx *ctx = ctx_;
+	struct epoll_event e;
+	sigset_t sigmask;
+	uint64_t v;
+	int ret;
+
+	/* Block SIGUSR1 */
+	sigemptyset(&sigmask);
+	sigaddset(&sigmask, SIGUSR1);
+	sigprocmask(SIG_SETMASK, &sigmask, NULL);
+
+	/* Prepare empty mask for epoll_pwait() */
+	sigemptyset(&sigmask);
+
+	while (!ctx->stopped) {
+		/* Mark we are ready */
+		__atomic_fetch_add(&ctx->ready, 1, __ATOMIC_ACQUIRE);
+
+		/* Start when all are ready */
+		while (__atomic_load_n(&ctx->ready, __ATOMIC_ACQUIRE) &&
+		       !ctx->stopped);
+
+		/* Account this waiter */
+		__atomic_fetch_add(&ctx->waiters, 1, __ATOMIC_ACQUIRE);
+
+		ret = epoll_pwait(ctx->epfd, &e, 1, 2000, &sigmask);
+		if (ret != 1) {
+			/* We expect only signal delivery on stop */
+			assert(ret < 0 && errno == EINTR && "Lost wakeup!\n");
+			assert(ctx->stopped);
+			break;
+		}
+
+		ret = read(e.data.fd, &v, sizeof(v));
+		/* Since we are on ET mode, thus each thread gets its own fd. */
+		assert(ret == sizeof(v));
+
+		__atomic_fetch_sub(&ctx->waiters, 1, __ATOMIC_RELEASE);
+	}
+
+	return NULL;
+}
+
+static inline unsigned long long msecs(void)
+{
+	struct timespec ts;
+	unsigned long long msecs;
+
+	clock_gettime(CLOCK_REALTIME, &ts);
+	msecs = ts.tv_sec * 1000ull;
+	msecs += ts.tv_nsec / 1000000ull;
+
+	return msecs;
+}
+
+static inline int count_waiters(struct epoll60_ctx *ctx)
+{
+	return __atomic_load_n(&ctx->waiters, __ATOMIC_ACQUIRE);
+}
+
+TEST(epoll60)
+{
+	struct epoll60_ctx ctx = { 0 };
+	pthread_t waiters[ARRAY_SIZE(ctx.evfd)];
+	struct epoll_event e;
+	int i, n, ret;
+
+	signal(SIGUSR1, signal_handler);
+
+	ctx.epfd = epoll_create1(0);
+	ASSERT_GE(ctx.epfd, 0);
+
+	/* Create event fds */
+	for (i = 0; i < ARRAY_SIZE(ctx.evfd); i++) {
+		ctx.evfd[i] = eventfd(0, EFD_NONBLOCK);
+		ASSERT_GE(ctx.evfd[i], 0);
+
+		e.events = EPOLLIN | EPOLLET;
+		e.data.fd = ctx.evfd[i];
+		ASSERT_EQ(epoll_ctl(ctx.epfd, EPOLL_CTL_ADD, ctx.evfd[i], &e), 0);
+	}
+
+	/* Create waiter threads */
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		ASSERT_EQ(pthread_create(&waiters[i], NULL,
+					 epoll60_wait_thread, &ctx), 0);
+
+	for (i = 0; i < 300; i++) {
+		uint64_t v = 1, ms;
+
+		/* Wait for all to be ready */
+		while (__atomic_load_n(&ctx.ready, __ATOMIC_ACQUIRE) !=
+		       ARRAY_SIZE(ctx.evfd))
+			;
+
+		/* Steady, go */
+		__atomic_fetch_sub(&ctx.ready, ARRAY_SIZE(ctx.evfd),
+				   __ATOMIC_ACQUIRE);
+
+		/* Wait all have gone to kernel */
+		while (count_waiters(&ctx) != ARRAY_SIZE(ctx.evfd))
+			;
+
+		/* 1ms should be enough to schedule away */
+		usleep(1000);
+
+		/* Quickly signal all handles at once */
+		for (n = 0; n < ARRAY_SIZE(ctx.evfd); n++) {
+			ret = write(ctx.evfd[n], &v, sizeof(v));
+			ASSERT_EQ(ret, sizeof(v));
+		}
+
+		/* Busy loop for 1s and wait for all waiters to wake up */
+		ms = msecs();
+		while (count_waiters(&ctx) && msecs() < ms + 1000)
+			;
+
+		ASSERT_EQ(count_waiters(&ctx), 0);
+	}
+	ctx.stopped = 1;
+	/* Stop waiters */
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		ret = pthread_kill(waiters[i], SIGUSR1);
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		pthread_join(waiters[i], NULL);
+
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		close(ctx.evfd[i]);
+	close(ctx.epfd);
+}
+
 TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config
index c2c8de4fafff..e59d985eeff0 100644
--- a/tools/testing/selftests/ftrace/config
+++ b/tools/testing/selftests/ftrace/config
@@ -11,5 +11,6 @@ CONFIG_PREEMPTIRQ_DELAY_TEST=m
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SAMPLES=y
+CONFIG_SAMPLE_FTRACE_DIRECT=m
 CONFIG_SAMPLE_TRACE_PRINTK=m
 CONFIG_KALLSYMS_ALL=y
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index 063ecb290a5a..a4605b5ee66d 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -17,6 +17,7 @@ echo "		-v|--verbose Increase verbosity of test messages"
 echo "		-vv        Alias of -v -v (Show all results in stdout)"
 echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
 echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
+echo "		--fail-unresolved Treat UNRESOLVED as a failure"
 echo "		-d|--debug Debug mode (trace all shell commands)"
 echo "		-l|--logdir <dir> Save logs on the <dir>"
 echo "		            If <dir> is -, all logs output in console only"
@@ -29,8 +30,25 @@ err_ret=1
 # kselftest skip code is 4
 err_skip=4
 
+# cgroup RT scheduling prevents chrt commands from succeeding, which
+# induces failures in test wakeup tests.  Disable for the duration of
+# the tests.
+
+readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us
+
+sched_rt_runtime_orig=$(cat $sched_rt_runtime)
+
+setup() {
+  echo -1 > $sched_rt_runtime
+}
+
+cleanup() {
+  echo $sched_rt_runtime_orig > $sched_rt_runtime
+}
+
 errexit() { # message
   echo "Error: $1" 1>&2
+  cleanup
   exit $err_ret
 }
 
@@ -39,6 +57,8 @@ if [ `id -u` -ne 0 ]; then
   errexit "this must be run by root user"
 fi
 
+setup
+
 # Utilities
 absdir() { # file_path
   (cd `dirname $1`; pwd)
@@ -93,6 +113,10 @@ parse_opts() { # opts
       UNSUPPORTED_RESULT=1
       shift 1
     ;;
+    --fail-unresolved)
+      UNRESOLVED_RESULT=1
+      shift 1
+    ;;
     --logdir|-l)
       LOG_DIR=$2
       shift 2
@@ -157,6 +181,7 @@ KEEP_LOG=0
 DEBUG=0
 VERBOSE=0
 UNSUPPORTED_RESULT=0
+UNRESOLVED_RESULT=0
 STOP_FAILURE=0
 # Parse command-line options
 parse_opts $*
@@ -235,6 +260,7 @@ TOTAL_RESULT=0
 
 INSTANCE=
 CASENO=0
+
 testcase() { # testfile
   CASENO=$((CASENO+1))
   desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
@@ -260,7 +286,7 @@ eval_result() { # sigval
     $UNRESOLVED)
       prlog "	[${color_blue}UNRESOLVED${color_reset}]"
       UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
-      return 1 # this is a kind of bug.. something happened.
+      return $UNRESOLVED_RESULT # depends on use case
     ;;
     $UNTESTED)
       prlog "	[${color_blue}UNTESTED${color_reset}]"
@@ -273,7 +299,7 @@ eval_result() { # sigval
       return $UNSUPPORTED_RESULT # depends on use case
     ;;
     $XFAIL)
-      prlog "	[${color_red}XFAIL${color_reset}]"
+      prlog "	[${color_green}XFAIL${color_reset}]"
       XFAILED_CASES="$XFAILED_CASES $CASENO"
       return 0
     ;;
@@ -406,5 +432,7 @@ prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w`
 prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
 prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
 
+cleanup
+
 # if no error, return 0
 exit $TOTAL_RESULT
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
index aefab0c66d54..f59853857ad2 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
@@ -10,10 +10,7 @@ if ! grep -q function_graph available_tracers; then
     exit_unsupported
 fi
 
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 do_reset() {
     if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
index c8a5209f2119..d610f47edd90 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
@@ -9,6 +9,8 @@ if ! grep -q function_graph available_tracers; then
     exit_unsupported
 fi
 
+check_filter_file set_ftrace_filter
+
 fail() { # msg
     echo $1
     exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
index f4e92afab14b..28936f434ee5 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
@@ -9,6 +9,8 @@ if ! grep -q function available_tracers; then
     exit_unsupported
 fi
 
+check_filter_file set_ftrace_filter
+
 disable_tracing
 clear_trace
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
index 8aa46a2ea133..71db68a7975f 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
@@ -15,10 +15,7 @@ if [ ! -f set_ftrace_notrace_pid ]; then
     exit_unsupported
 fi
 
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is function tracer not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 do_function_fork=1
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
index f2ee1e889e13..d58403c4b7cd 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
@@ -16,10 +16,7 @@ if [ ! -f set_ftrace_pid ]; then
     exit_unsupported
 fi
 
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is function tracer not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 do_function_fork=1
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
index 1a52f2883fe0..b2aff786c1a2 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -3,7 +3,7 @@
 # description: ftrace - stacktrace filter command
 # flags: instance
 
-[ ! -f set_ftrace_filter ] && exit_unsupported
+check_filter_file set_ftrace_filter
 
 echo _do_fork:stacktrace >> set_ftrace_filter
 
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index ca2ffd7957f9..e9b1fd534e96 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -11,10 +11,7 @@
 #
 
 # The triggers are set within the set_ftrace_filter file
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 do_reset() {
     reset_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
index 9330c873f9fe..1a4b4a442d33 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function trace on module
 
-[ ! -f set_ftrace_filter ] && exit_unsupported
+check_filter_file set_ftrace_filter
 
 : "mod: allows to filter a non exist function"
 echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index dfbae637c60c..a3dadb6b93b4 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -18,10 +18,7 @@ if ! grep -q function_graph available_tracers; then
     exit_unsupported;
 fi
 
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 if [ ! -f function_profile_enabled ]; then
     echo "function_profile_enabled not found, function profiling enabled?"
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
index 51f6e6146bd9..70bad441fa7d 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
@@ -10,10 +10,7 @@
 #
 
 # The triggers are set within the set_ftrace_filter file
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 fail() { # mesg
     echo $1
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
index b414f0e3c646..51e9e80bc0e6 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
@@ -8,6 +8,8 @@ if [ ! -f stack_trace ]; then
   exit_unsupported
 fi
 
+check_filter_file stack_trace_filter
+
 echo > stack_trace_filter
 echo 0 > stack_max_size
 echo 1 > /proc/sys/kernel/stack_tracer_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
index 1947387fe976..3ed173f2944a 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -11,10 +11,7 @@
 #
 
 # The triggers are set within the set_ftrace_filter file
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
+check_filter_file set_ftrace_filter
 
 fail() { # mesg
     echo $1
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 5d4550591ff9..61a3c7e2634d 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -1,3 +1,9 @@
+check_filter_file() { # check filter file introduced by dynamic ftrace
+    if [ ! -f "$1" ]; then
+        echo "$1 not found? Is dynamic ftrace not set?"
+        exit_unsupported
+    fi
+}
 
 clear_trace() { # reset trace output
     echo > trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
index 1bcb67dcae26..81490ecaaa92 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -38,7 +38,7 @@ for width in 64 32 16 8; do
   echo 0 > events/kprobes/testprobe/enable
 
   : "Confirm the arguments is recorded in given types correctly"
-  ARGS=`grep "testprobe" trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+  ARGS=`grep "testprobe" trace | head -n 1 | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
   check_types $ARGS $width
 
   : "Clear event for next loop"
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index 7650a82db3f5..df5072815b87 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -5,6 +5,8 @@
 [ -f kprobe_events ] || exit_unsupported # this is configurable
 grep "function" available_tracers || exit_unsupported # this is configurable
 
+check_filter_file set_ftrace_filter
+
 # prepare
 echo nop > current_tracer
 echo _do_fork > set_ftrace_filter
diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 0bb80619db58..32bdc978a711 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -1,13 +1,13 @@
 # SPDX-License-Identifier: GPL-2.0
 
-MOUNT_CFLAGS := $(shell pkg-config --cflags mount 2>/dev/null)
-MOUNT_LDLIBS := $(shell pkg-config --libs mount 2>/dev/null)
-ifeq ($(MOUNT_LDLIBS),)
-MOUNT_LDLIBS := -lmount -I/usr/include/libmount
+VAR_CFLAGS := $(shell pkg-config --cflags mount 2>/dev/null)
+VAR_LDLIBS := $(shell pkg-config --libs mount 2>/dev/null)
+ifeq ($(VAR_LDLIBS),)
+VAR_LDLIBS := -lmount -I/usr/include/libmount
 endif
 
-CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/ $(MOUNT_CFLAGS)
-LDLIBS += $(MOUNT_LDLIBS)
+CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/ $(VAR_CFLAGS)
+LDLIBS += $(VAR_LDLIBS)
 
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
index 7340fd6a9a9f..39f0fa2a8fd6 100644
--- a/tools/testing/selftests/intel_pstate/Makefile
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
-LDLIBS := $(LDLIBS) -lm
+LDLIBS += -lm
 
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c
index 4c156aeab6b8..5ec4d9e18806 100644
--- a/tools/testing/selftests/ipc/msgque.c
+++ b/tools/testing/selftests/ipc/msgque.c
@@ -137,7 +137,7 @@ int dump_queue(struct msgque_data *msgque)
 	for (kern_id = 0; kern_id < 256; kern_id++) {
 		ret = msgctl(kern_id, MSG_STAT, &ds);
 		if (ret < 0) {
-			if (errno == -EINVAL)
+			if (errno == EINVAL)
 				continue;
 			printf("Failed to get stats for IPC queue with id %d\n",
 					kern_id);
diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh
index e84d901f8567..676b3a8b114d 100644
--- a/tools/testing/selftests/kselftest/runner.sh
+++ b/tools/testing/selftests/kselftest/runner.sh
@@ -33,7 +33,7 @@ tap_timeout()
 {
 	# Make sure tests will time out if utility is available.
 	if [ -x /usr/bin/timeout ] ; then
-		/usr/bin/timeout "$kselftest_timeout" "$1"
+		/usr/bin/timeout --foreground "$kselftest_timeout" "$1"
 	else
 		"$1"
 	fi
diff --git a/tools/testing/selftests/kselftest_deps.sh b/tools/testing/selftests/kselftest_deps.sh
new file mode 100755
index 000000000000..bbc04646346b
--- /dev/null
+++ b/tools/testing/selftests/kselftest_deps.sh
@@ -0,0 +1,272 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# kselftest_deps.sh
+#
+# Checks for kselftest build dependencies on the build system.
+# Copyright (c) 2020 Shuah Khan <skhan@linuxfoundation.org>
+#
+#
+
+usage()
+{
+
+echo -e "Usage: $0 -[p] <compiler> [test_name]\n"
+echo -e "\tkselftest_deps.sh [-p] gcc"
+echo -e "\tkselftest_deps.sh [-p] gcc vm"
+echo -e "\tkselftest_deps.sh [-p] aarch64-linux-gnu-gcc"
+echo -e "\tkselftest_deps.sh [-p] aarch64-linux-gnu-gcc vm\n"
+echo "- Should be run in selftests directory in the kernel repo."
+echo "- Checks if Kselftests can be built/cross-built on a system."
+echo "- Parses all test/sub-test Makefile to find library dependencies."
+echo "- Runs compile test on a trivial C file with LDLIBS specified"
+echo "  in the test Makefiles to identify missing library dependencies."
+echo "- Prints suggested target list for a system filtering out tests"
+echo "  failed the build dependency check from the TARGETS in Selftests"
+echo "  main Makefile when optional -p is specified."
+echo "- Prints pass/fail dependency check for each tests/sub-test."
+echo "- Prints pass/fail targets and libraries."
+echo "- Default: runs dependency checks on all tests."
+echo "- Optional test name can be specified to check dependencies for it."
+exit 1
+
+}
+
+# Start main()
+main()
+{
+
+base_dir=`pwd`
+# Make sure we're in the selftests top-level directory.
+if [ $(basename "$base_dir") !=  "selftests" ]; then
+	echo -e "\tPlease run $0 in"
+	echo -e "\ttools/testing/selftests directory ..."
+	exit 1
+fi
+
+print_targets=0
+
+while getopts "p" arg; do
+    case $arg in
+        p)
+		print_targets=1
+	shift;;
+    esac
+done
+
+if [ $# -eq 0 ]
+then
+	usage
+fi
+
+# Compiler
+CC=$1
+
+tmp_file=$(mktemp).c
+trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
+#echo $tmp_file
+
+pass=$(mktemp).out
+trap "rm -f $pass" EXIT
+#echo $pass
+
+fail=$(mktemp).out
+trap "rm -f $fail" EXIT
+#echo $fail
+
+# Generate tmp source fire for compile test
+cat << "EOF" > $tmp_file
+int main()
+{
+}
+EOF
+
+# Save results
+total_cnt=0
+fail_trgts=()
+fail_libs=()
+fail_cnt=0
+pass_trgts=()
+pass_libs=()
+pass_cnt=0
+
+# Get all TARGETS from selftests Makefile
+targets=$(egrep "^TARGETS +|^TARGETS =" Makefile | cut -d "=" -f2)
+
+# Single test case
+if [ $# -eq 2 ]
+then
+	test=$2/Makefile
+
+	l1_test $test
+	l2_test $test
+	l3_test $test
+
+	print_results $1 $2
+	exit $?
+fi
+
+# Level 1: LDLIBS set static.
+#
+# Find all LDLIBS set statically for all executables built by a Makefile
+# and filter out VAR_LDLIBS to discard the following:
+# 	gpio/Makefile:LDLIBS += $(VAR_LDLIBS)
+# Append space at the end of the list to append more tests.
+
+l1_tests=$(grep -r --include=Makefile "^LDLIBS" | \
+		grep -v "VAR_LDLIBS" | awk -F: '{print $1}')
+
+# Level 2: LDLIBS set dynamically.
+#
+# Level 2
+# Some tests have multiple valid LDLIBS lines for individual sub-tests
+# that need dependency checks. Find them and append them to the tests
+# e.g: vm/Makefile:$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
+# Filter out VAR_LDLIBS to discard the following:
+# 	memfd/Makefile:$(OUTPUT)/fuse_mnt: LDLIBS += $(VAR_LDLIBS)
+# Append space at the end of the list to append more tests.
+
+l2_tests=$(grep -r --include=Makefile ": LDLIBS" | \
+		grep -v "VAR_LDLIBS" | awk -F: '{print $1}')
+
+# Level 3
+# gpio,  memfd and others use pkg-config to find mount and fuse libs
+# respectively and save it in VAR_LDLIBS. If pkg-config doesn't find
+# any, VAR_LDLIBS set to default.
+# Use the default value and filter out pkg-config for dependency check.
+# e.g:
+# gpio/Makefile
+#	VAR_LDLIBS := $(shell pkg-config --libs mount) 2>/dev/null)
+# memfd/Makefile
+#	VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
+
+l3_tests=$(grep -r --include=Makefile "^VAR_LDLIBS" | \
+		grep -v "pkg-config" | awk -F: '{print $1}')
+
+#echo $l1_tests
+#echo $l2_1_tests
+#echo $l3_tests
+
+all_tests
+print_results $1 $2
+
+exit $?
+}
+# end main()
+
+all_tests()
+{
+	for test in $l1_tests; do
+		l1_test $test
+	done
+
+	for test in $l2_tests; do
+		l2_test $test
+	done
+
+	for test in $l3_tests; do
+		l3_test $test
+	done
+}
+
+# Use same parsing used for l1_tests and pick libraries this time.
+l1_test()
+{
+	test_libs=$(grep --include=Makefile "^LDLIBS" $test | \
+			grep -v "VAR_LDLIBS" | \
+			sed -e 's/\:/ /' | \
+			sed -e 's/+/ /' | cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+# Use same parsing used for l2__tests and pick libraries this time.
+l2_test()
+{
+	test_libs=$(grep --include=Makefile ": LDLIBS" $test | \
+			grep -v "VAR_LDLIBS" | \
+			sed -e 's/\:/ /' | sed -e 's/+/ /' | \
+			cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+l3_test()
+{
+	test_libs=$(grep --include=Makefile "^VAR_LDLIBS" $test | \
+			grep -v "pkg-config" | sed -e 's/\:/ /' |
+			sed -e 's/+/ /' | cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+check_libs()
+{
+
+if [[ ! -z "${test_libs// }" ]]
+then
+
+	#echo $test_libs
+
+	for lib in $test_libs; do
+
+	let total_cnt+=1
+	$CC -o $tmp_file.bin $lib $tmp_file > /dev/null 2>&1
+	if [ $? -ne 0 ]; then
+		echo "FAIL: $test dependency check: $lib" >> $fail
+		let fail_cnt+=1
+		fail_libs+="$lib "
+		fail_target=$(echo "$test" | cut -d "/" -f1)
+		fail_trgts+="$fail_target "
+		targets=$(echo "$targets" | grep -v "$fail_target")
+	else
+		echo "PASS: $test dependency check passed $lib" >> $pass
+		let pass_cnt+=1
+		pass_libs+="$lib "
+		pass_trgts+="$(echo "$test" | cut -d "/" -f1) "
+	fi
+
+	done
+fi
+}
+
+print_results()
+{
+	echo -e "========================================================";
+	echo -e "Kselftest Dependency Check for [$0 $1 $2] results..."
+
+	if [ $print_targets -ne 0 ]
+	then
+	echo -e "Suggested Selftest Targets for your configuration:"
+	echo -e "$targets";
+	fi
+
+	echo -e "========================================================";
+	echo -e "Checked tests defining LDLIBS dependencies"
+	echo -e "--------------------------------------------------------";
+	echo -e "Total tests with Dependencies:"
+	echo -e "$total_cnt Pass: $pass_cnt Fail: $fail_cnt";
+
+	if [ $pass_cnt -ne 0 ]; then
+	echo -e "--------------------------------------------------------";
+	cat $pass
+	echo -e "--------------------------------------------------------";
+	echo -e "Targets passed build dependency check on system:"
+	echo -e "$(echo "$pass_trgts" | xargs -n1 | sort -u | xargs)"
+	fi
+
+	if [ $fail_cnt -ne 0 ]; then
+	echo -e "--------------------------------------------------------";
+	cat $fail
+	echo -e "--------------------------------------------------------";
+	echo -e "Targets failed build dependency check on system:"
+	echo -e "$(echo "$fail_trgts" | xargs -n1 | sort -u | xargs)"
+	echo -e "--------------------------------------------------------";
+	echo -e "Missing libraries system"
+	echo -e "$(echo "$fail_libs" | xargs -n1 | sort -u | xargs)"
+	fi
+
+	echo -e "--------------------------------------------------------";
+	echo -e "========================================================";
+}
+
+main "$@"
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 2902f6a78f8a..2bb8c81fc0b4 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -705,7 +705,7 @@ static void __timeout_handler(int sig, siginfo_t *info, void *ucontext)
 	/* Sanity check handler execution environment. */
 	if (!t) {
 		fprintf(TH_LOG_STREAM,
-			"no active test in SIGARLM handler!?\n");
+			"no active test in SIGALRM handler!?\n");
 		abort();
 	}
 	if (sig != SIGALRM || sig != info->si_signo) {
@@ -731,7 +731,7 @@ void __wait_for_test(struct __test_metadata *t)
 	if (sigaction(SIGALRM, &action, &saved_action)) {
 		t->passed = 0;
 		fprintf(TH_LOG_STREAM,
-			"%s: unable to install SIGARLM handler\n",
+			"%s: unable to install SIGALRM handler\n",
 			t->name);
 		return;
 	}
@@ -743,7 +743,7 @@ void __wait_for_test(struct __test_metadata *t)
 	if (sigaction(SIGALRM, &saved_action, NULL)) {
 		t->passed = 0;
 		fprintf(TH_LOG_STREAM,
-			"%s: unable to uninstall SIGARLM handler\n",
+			"%s: unable to uninstall SIGALRM handler\n",
 			t->name);
 		return;
 	}
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 712a2ddd2a27..b728c0a0f9b2 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -5,8 +5,34 @@ all:
 
 top_srcdir = ../../../..
 KSFT_KHDR_INSTALL := 1
+
+# For cross-builds to work, UNAME_M has to map to ARCH and arch specific
+# directories and targets in this Makefile. "uname -m" doesn't map to
+# arch specific sub-directory names.
+#
+# UNAME_M variable to used to run the compiles pointing to the right arch
+# directories and build the right targets for these supported architectures.
+#
+# TEST_GEN_PROGS and LIBKVM are set using UNAME_M variable.
+# LINUX_TOOL_ARCH_INCLUDE is set using ARCH variable.
+#
+# x86_64 targets are named to include x86_64 as a suffix and directories
+# for includes are in x86_64 sub-directory. s390x and aarch64 follow the
+# same convention. "uname -m" doesn't result in the correct mapping for
+# s390x and aarch64.
+#
+# No change necessary for x86_64
 UNAME_M := $(shell uname -m)
 
+# Set UNAME_M for arm64 compile/install to work
+ifeq ($(ARCH),arm64)
+	UNAME_M := aarch64
+endif
+# Set UNAME_M s390x compile/install to work
+ifeq ($(ARCH),s390)
+	UNAME_M := s390x
+endif
+
 LIBKVM = lib/assert.c lib/elf.c lib/io.c lib/kvm_util.c lib/sparsebit.c lib/test_util.c
 LIBKVM_x86_64 = lib/x86_64/processor.c lib/x86_64/vmx.c lib/x86_64/svm.c lib/x86_64/ucall.c
 LIBKVM_aarch64 = lib/aarch64/processor.c lib/aarch64/ucall.c
@@ -53,7 +79,7 @@ LIBKVM += $(LIBKVM_$(UNAME_M))
 INSTALL_HDR_PATH = $(top_srcdir)/usr
 LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
 LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
-LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
 CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
 	-fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \
 	-I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \
@@ -84,6 +110,7 @@ $(LIBKVM_OBJ): $(OUTPUT)/%.o: %.c
 $(OUTPUT)/libkvm.a: $(LIBKVM_OBJ)
 	$(AR) crs $@ $^
 
+x := $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
 all: $(STATIC_LIBS)
 $(TEST_GEN_PROGS): $(STATIC_LIBS)
 
diff --git a/tools/testing/selftests/kvm/include/evmcs.h b/tools/testing/selftests/kvm/include/evmcs.h
index d8f4d6bfe05d..a034438b6266 100644
--- a/tools/testing/selftests/kvm/include/evmcs.h
+++ b/tools/testing/selftests/kvm/include/evmcs.h
@@ -219,8 +219,8 @@ struct hv_enlightened_vmcs {
 #define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK	\
 		(~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
 
-struct hv_enlightened_vmcs *current_evmcs;
-struct hv_vp_assist_page *current_vp_assist;
+extern struct hv_enlightened_vmcs *current_evmcs;
+extern struct hv_vp_assist_page *current_vp_assist;
 
 int vcpu_enable_evmcs(struct kvm_vm *vm, int vcpu_id);
 
diff --git a/tools/testing/selftests/kvm/lib/x86_64/vmx.c b/tools/testing/selftests/kvm/lib/x86_64/vmx.c
index 6f17f69394be..4ae104f6ce69 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c
@@ -17,6 +17,9 @@
 
 bool enable_evmcs;
 
+struct hv_enlightened_vmcs *current_evmcs;
+struct hv_vp_assist_page *current_vp_assist;
+
 struct eptPageTableEntry {
 	uint64_t readable:1;
 	uint64_t writable:1;
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index 0a15f9e23431..4da8b565fa32 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -4,14 +4,25 @@ CFLAGS += -I../../../../include/uapi/
 CFLAGS += -I../../../../include/
 CFLAGS += -I../../../../usr/include/
 
-TEST_GEN_PROGS := memfd_test fuse_test fuse_mnt
+TEST_GEN_PROGS := memfd_test
 TEST_PROGS := run_fuse_test.sh run_hugetlbfs_test.sh
+TEST_GEN_FILES := fuse_test fuse_mnt
 
-fuse_mnt.o: CFLAGS += $(shell pkg-config fuse --cflags)
+VAR_CFLAGS := $(shell pkg-config fuse --cflags 2>/dev/null)
+ifeq ($(VAR_CFLAGS),)
+VAR_CFLAGS := -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
+endif
+
+VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
+ifeq ($(VAR_LDLIBS),)
+VAR_LDLIBS := -lfuse -pthread
+endif
+
+fuse_mnt.o: CFLAGS += $(VAR_CFLAGS)
 
 include ../lib.mk
 
-$(OUTPUT)/fuse_mnt: LDLIBS += $(shell pkg-config fuse --libs)
+$(OUTPUT)/fuse_mnt: LDLIBS += $(VAR_LDLIBS)
 
 $(OUTPUT)/memfd_test: memfd_test.c common.c
 $(OUTPUT)/fuse_test: fuse_test.c common.c
diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
index 796670ebc65b..6560ed796ac4 100755
--- a/tools/testing/selftests/net/fib_nexthops.sh
+++ b/tools/testing/selftests/net/fib_nexthops.sh
@@ -749,6 +749,29 @@ ipv4_fcnal_runtime()
 	run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
 	log_test $? 0 "Ping - multipath"
 
+	run_cmd "$IP ro delete 172.16.101.1/32 nhid 122"
+
+	#
+	# multiple default routes
+	# - tests fib_select_default
+	run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1"
+	run_cmd "$IP ro add default nhid 501"
+	run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20"
+	run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+	log_test $? 0 "Ping - multiple default routes, nh first"
+
+	# flip the order
+	run_cmd "$IP ro del default nhid 501"
+	run_cmd "$IP ro del default via 172.16.1.3 dev veth1 metric 20"
+	run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20"
+	run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1"
+	run_cmd "$IP ro add default nhid 501 metric 20"
+	run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1"
+	log_test $? 0 "Ping - multiple default routes, nh second"
+
+	run_cmd "$IP nexthop delete nhid 501"
+	run_cmd "$IP ro del default"
+
 	#
 	# IPv4 with blackhole nexthops
 	#
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index b7616704b55e..84205c3a55eb 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -618,16 +618,22 @@ fib_nexthop_test()
 
 fib_suppress_test()
 {
+	echo
+	echo "FIB rule with suppress_prefixlength"
+	setup
+
 	$IP link add dummy1 type dummy
 	$IP link set dummy1 up
 	$IP -6 route add default dev dummy1
 	$IP -6 rule add table main suppress_prefixlength 0
-	ping -f -c 1000 -W 1 1234::1 || true
+	ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
 	$IP -6 rule del table main suppress_prefixlength 0
 	$IP link del dummy1
 
 	# If we got here without crashing, we're good.
-	return 0
+	log_test 0 0 "FIB rule suppress test"
+
+	cleanup
 }
 
 ################################################################################
diff --git a/tools/testing/selftests/net/tcp_mmap.c b/tools/testing/selftests/net/tcp_mmap.c
index 35505b31e5cc..4555f88252ba 100644
--- a/tools/testing/selftests/net/tcp_mmap.c
+++ b/tools/testing/selftests/net/tcp_mmap.c
@@ -165,9 +165,10 @@ void *child_thread(void *arg)
 			socklen_t zc_len = sizeof(zc);
 			int res;
 
+			memset(&zc, 0, sizeof(zc));
 			zc.address = (__u64)((unsigned long)addr);
 			zc.length = chunk_size;
-			zc.recv_skip_hint = 0;
+
 			res = getsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE,
 					 &zc, &zc_len);
 			if (res == -1)
@@ -281,12 +282,14 @@ static void setup_sockaddr(int domain, const char *str_addr,
 static void do_accept(int fdlisten)
 {
 	pthread_attr_t attr;
+	int rcvlowat;
 
 	pthread_attr_init(&attr);
 	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 
+	rcvlowat = chunk_size;
 	if (setsockopt(fdlisten, SOL_SOCKET, SO_RCVLOWAT,
-		       &chunk_size, sizeof(chunk_size)) == -1) {
+		       &rcvlowat, sizeof(rcvlowat)) == -1) {
 		perror("setsockopt SO_RCVLOWAT");
 	}
 
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 89fb3e0b552e..c0aa46ce14f6 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -2803,12 +2803,13 @@ TEST(syscall_restart)
 			 offsetof(struct seccomp_data, nr)),
 
 #ifdef __NR_sigreturn
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_sigreturn, 6, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_sigreturn, 7, 0),
 #endif
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 5, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit, 4, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_rt_sigreturn, 3, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_nanosleep, 4, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 6, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit, 5, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_rt_sigreturn, 4, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_nanosleep, 5, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_clock_nanosleep, 4, 0),
 		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_restart_syscall, 4, 0),
 
 		/* Allow __NR_write for easy logging. */
@@ -2895,7 +2896,8 @@ TEST(syscall_restart)
 	ASSERT_EQ(PTRACE_EVENT_SECCOMP, (status >> 16));
 	ASSERT_EQ(0, ptrace(PTRACE_GETEVENTMSG, child_pid, NULL, &msg));
 	ASSERT_EQ(0x100, msg);
-	EXPECT_EQ(__NR_nanosleep, get_syscall(_metadata, child_pid));
+	ret = get_syscall(_metadata, child_pid);
+	EXPECT_TRUE(ret == __NR_nanosleep || ret == __NR_clock_nanosleep);
 
 	/* Might as well check siginfo for sanity while we're here. */
 	ASSERT_EQ(0, ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &info));
diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh
index b630c7b5950a..8155c2ea7ccb 100755
--- a/tools/testing/selftests/tpm2/test_smoke.sh
+++ b/tools/testing/selftests/tpm2/test_smoke.sh
@@ -1,17 +1,8 @@
 #!/bin/bash
 # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
-self.flags = flags
 
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
-
-if [ -f /dev/tpm0 ] ; then
-	python -m unittest -v tpm2_tests.SmokeTest
-	python -m unittest -v tpm2_tests.AsyncTest
-else
-	exit $ksft_skip
-fi
+python -m unittest -v tpm2_tests.SmokeTest
+python -m unittest -v tpm2_tests.AsyncTest
 
 CLEAR_CMD=$(which tpm2_clear)
 if [ -n $CLEAR_CMD ]; then
diff --git a/tools/testing/selftests/tpm2/test_space.sh b/tools/testing/selftests/tpm2/test_space.sh
index 180b469c53b4..a6f5e346635e 100755
--- a/tools/testing/selftests/tpm2/test_space.sh
+++ b/tools/testing/selftests/tpm2/test_space.sh
@@ -1,11 +1,4 @@
 #!/bin/bash
 # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
-if [ -f /dev/tpmrm0 ] ; then
-	python -m unittest -v tpm2_tests.SpaceTest
-else
-	exit $ksft_skip
-fi
+python -m unittest -v tpm2_tests.SpaceTest
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index d31db052dff6..6998877f707e 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for vm selftests
 uname_M := $(shell uname -m 2>/dev/null || echo not)
-ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/')
+MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/')
 
 CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
 LDLIBS = -lrt
@@ -20,7 +20,7 @@ TEST_GEN_FILES += thuge-gen
 TEST_GEN_FILES += transhuge-stress
 TEST_GEN_FILES += userfaultfd
 
-ifneq (,$(filter $(ARCH),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
+ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64))
 TEST_GEN_FILES += va_128TBswitch
 TEST_GEN_FILES += virtual_address_range
 TEST_GEN_FILES += write_to_hugetlbfs
diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index 665009ebfba4..76ca5e7a3951 100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
@@ -59,7 +59,7 @@ else
 fi
 
 #filter 64bit architectures
-ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64"
+ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64"
 if [ -z $ARCH ]; then
   ARCH=`uname -m 2>/dev/null | sed -e 's/aarch64.*/arm64/'`
 fi
diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
index 936e1ca9410e..17a1f53ceba0 100755
--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -48,8 +48,11 @@ cleanup() {
 	exec 2>/dev/null
 	printf "$orig_message_cost" > /proc/sys/net/core/message_cost
 	ip0 link del dev wg0
+	ip0 link del dev wg1
 	ip1 link del dev wg0
+	ip1 link del dev wg1
 	ip2 link del dev wg0
+	ip2 link del dev wg1
 	local to_kill="$(ip netns pids $netns0) $(ip netns pids $netns1) $(ip netns pids $netns2)"
 	[[ -n $to_kill ]] && kill $to_kill
 	pp ip netns del $netns1
@@ -77,18 +80,20 @@ ip0 link set wg0 netns $netns2
 key1="$(pp wg genkey)"
 key2="$(pp wg genkey)"
 key3="$(pp wg genkey)"
+key4="$(pp wg genkey)"
 pub1="$(pp wg pubkey <<<"$key1")"
 pub2="$(pp wg pubkey <<<"$key2")"
 pub3="$(pp wg pubkey <<<"$key3")"
+pub4="$(pp wg pubkey <<<"$key4")"
 psk="$(pp wg genpsk)"
 [[ -n $key1 && -n $key2 && -n $psk ]]
 
 configure_peers() {
 	ip1 addr add 192.168.241.1/24 dev wg0
-	ip1 addr add fd00::1/24 dev wg0
+	ip1 addr add fd00::1/112 dev wg0
 
 	ip2 addr add 192.168.241.2/24 dev wg0
-	ip2 addr add fd00::2/24 dev wg0
+	ip2 addr add fd00::2/112 dev wg0
 
 	n1 wg set wg0 \
 		private-key <(echo "$key1") \
@@ -230,9 +235,38 @@ n1 ping -W 1 -c 1 192.168.241.2
 n1 wg set wg0 private-key <(echo "$key3")
 n2 wg set wg0 peer "$pub3" preshared-key <(echo "$psk") allowed-ips 192.168.241.1/32 peer "$pub1" remove
 n1 ping -W 1 -c 1 192.168.241.2
+n2 wg set wg0 peer "$pub3" remove
+
+# Test that we can route wg through wg
+ip1 addr flush dev wg0
+ip2 addr flush dev wg0
+ip1 addr add fd00::5:1/112 dev wg0
+ip2 addr add fd00::5:2/112 dev wg0
+n1 wg set wg0 private-key <(echo "$key1") peer "$pub2" preshared-key <(echo "$psk") allowed-ips fd00::5:2/128 endpoint 127.0.0.1:2
+n2 wg set wg0 private-key <(echo "$key2") listen-port 2 peer "$pub1" preshared-key <(echo "$psk") allowed-ips fd00::5:1/128 endpoint 127.212.121.99:9998
+ip1 link add wg1 type wireguard
+ip2 link add wg1 type wireguard
+ip1 addr add 192.168.241.1/24 dev wg1
+ip1 addr add fd00::1/112 dev wg1
+ip2 addr add 192.168.241.2/24 dev wg1
+ip2 addr add fd00::2/112 dev wg1
+ip1 link set mtu 1340 up dev wg1
+ip2 link set mtu 1340 up dev wg1
+n1 wg set wg1 listen-port 5 private-key <(echo "$key3") peer "$pub4" allowed-ips 192.168.241.2/32,fd00::2/128 endpoint [fd00::5:2]:5
+n2 wg set wg1 listen-port 5 private-key <(echo "$key4") peer "$pub3" allowed-ips 192.168.241.1/32,fd00::1/128 endpoint [fd00::5:1]:5
+tests
+# Try to set up a routing loop between the two namespaces
+ip1 link set netns $netns0 dev wg1
+ip0 addr add 192.168.241.1/24 dev wg1
+ip0 link set up dev wg1
+n0 ping -W 1 -c 1 192.168.241.2
+n1 wg set wg0 peer "$pub2" endpoint 192.168.241.2:7
+ip2 link del wg0
+ip2 link del wg1
+! n0 ping -W 1 -c 10 -f 192.168.241.2 || false # Should not crash kernel
 
+ip0 link del wg1
 ip1 link del wg0
-ip2 link del wg0
 
 # Test using NAT. We now change the topology to this:
 # ┌────────────────────────────────────────┐    ┌────────────────────────────────────────────────┐     ┌────────────────────────────────────────┐
@@ -282,6 +316,20 @@ pp sleep 3
 n2 ping -W 1 -c 1 192.168.241.1
 n1 wg set wg0 peer "$pub2" persistent-keepalive 0
 
+# Test that onion routing works, even when it loops
+n1 wg set wg0 peer "$pub3" allowed-ips 192.168.242.2/32 endpoint 192.168.241.2:5
+ip1 addr add 192.168.242.1/24 dev wg0
+ip2 link add wg1 type wireguard
+ip2 addr add 192.168.242.2/24 dev wg1
+n2 wg set wg1 private-key <(echo "$key3") listen-port 5 peer "$pub1" allowed-ips 192.168.242.1/32
+ip2 link set wg1 up
+n1 ping -W 1 -c 1 192.168.242.2
+ip2 link del wg1
+n1 wg set wg0 peer "$pub3" endpoint 192.168.242.2:5
+! n1 ping -W 1 -c 1 192.168.242.2 || false # Should not crash kernel
+n1 wg set wg0 peer "$pub3" remove
+ip1 addr del 192.168.242.1/24 dev wg0
+
 # Do a wg-quick(8)-style policy routing for the default route, making sure vethc has a v6 address to tease out bugs.
 ip1 -6 addr add fc00::9/96 dev vethc
 ip1 -6 route add default via fc00::1
diff --git a/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
index 990c510a9cfa..f52f1e2bc7f6 100644
--- a/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
+++ b/tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config
@@ -10,3 +10,4 @@ CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="console=hvc0 wg.success=hvc1"
 CONFIG_SECTION_MISMATCH_WARN_ONLY=y
 CONFIG_FRAME_WARN=1280
+CONFIG_THREAD_SHIFT=14
diff --git a/tools/testing/selftests/wireguard/qemu/debug.config b/tools/testing/selftests/wireguard/qemu/debug.config
index 5909e7ef2a5c..9803dbb54181 100644
--- a/tools/testing/selftests/wireguard/qemu/debug.config
+++ b/tools/testing/selftests/wireguard/qemu/debug.config
@@ -25,7 +25,6 @@ CONFIG_KASAN=y
 CONFIG_KASAN_INLINE=y
 CONFIG_UBSAN=y
 CONFIG_UBSAN_SANITIZE_ALL=y
-CONFIG_UBSAN_NO_ALIGNMENT=y
 CONFIG_UBSAN_NULL=y
 CONFIG_DEBUG_KMEMLEAK=y
 CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile
index f33f32f1d208..b587b9a7a124 100644
--- a/tools/virtio/Makefile
+++ b/tools/virtio/Makefile
@@ -4,7 +4,7 @@ test: virtio_test vringh_test
 virtio_test: virtio_ring.o virtio_test.o
 vringh_test: vringh_test.o vringh.o virtio_ring.o
 
-CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE
+CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h
 vpath %.c ../../drivers/virtio ../../drivers/vhost
 mod:
 	${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}
@@ -22,7 +22,8 @@ OOT_CONFIGS=\
 	CONFIG_VHOST=m \
 	CONFIG_VHOST_NET=n \
 	CONFIG_VHOST_SCSI=n \
-	CONFIG_VHOST_VSOCK=n
+	CONFIG_VHOST_VSOCK=n \
+	CONFIG_VHOST_RING=n
 OOT_BUILD=KCFLAGS="-I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V}
 oot-build:
 	echo "UNSUPPORTED! Don't use the resulting modules in production!"
diff --git a/tools/virtio/asm/barrier.h b/tools/virtio/asm/barrier.h
index d0351f83aebe..04d563fc9b95 100644
--- a/tools/virtio/asm/barrier.h
+++ b/tools/virtio/asm/barrier.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#include <stdlib.h>
 #if defined(__i386__) || defined(__x86_64__)
 #define barrier() asm volatile("" ::: "memory")
 #define virt_mb() __sync_synchronize()
diff --git a/tools/virtio/generated/autoconf.h b/tools/virtio/generated/autoconf.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/virtio/generated/autoconf.h
diff --git a/tools/virtio/linux/compiler.h b/tools/virtio/linux/compiler.h
index 903dc9c4bd11..2c51bccb97bb 100644
--- a/tools/virtio/linux/compiler.h
+++ b/tools/virtio/linux/compiler.h
@@ -7,4 +7,5 @@
 
 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
 
+#define __aligned(x) __attribute((__aligned__(x)))
 #endif
diff --git a/tools/vm/Makefile b/tools/vm/Makefile
index 20f6cf04377f..9860622cbb15 100644
--- a/tools/vm/Makefile
+++ b/tools/vm/Makefile
@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for vm tools
 #
+include ../scripts/Makefile.include
+
 TARGETS=page-types slabinfo page_owner_sort
 
 LIB_DIR = ../lib/api