diff options
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/Makefile | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/s390x/shared_zeropage_test.c | 111 | ||||
| -rw-r--r-- | tools/testing/selftests/net/hsr/config | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/net/lib.sh | 18 |
5 files changed, 123 insertions, 10 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c index 02e718f06e0f..40531e56776e 100644 --- a/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c +++ b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c @@ -84,7 +84,7 @@ int BPF_PROG(trace_tcp_connect, struct sock *sk) } SEC("fexit/inet_csk_accept") -int BPF_PROG(inet_csk_accept, struct sock *sk, int flags, int *err, bool kern, +int BPF_PROG(inet_csk_accept, struct sock *sk, struct proto_accept_arg *arg, struct sock *accepted_sk) { set_task_info(accepted_sk); diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index ce8ff8e8ce3a..ac280dcba996 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -183,6 +183,7 @@ TEST_GEN_PROGS_s390x += s390x/sync_regs_test TEST_GEN_PROGS_s390x += s390x/tprot TEST_GEN_PROGS_s390x += s390x/cmma_test TEST_GEN_PROGS_s390x += s390x/debug_test +TEST_GEN_PROGS_s390x += s390x/shared_zeropage_test TEST_GEN_PROGS_s390x += demand_paging_test TEST_GEN_PROGS_s390x += dirty_log_test TEST_GEN_PROGS_s390x += guest_print_test diff --git a/tools/testing/selftests/kvm/s390x/shared_zeropage_test.c b/tools/testing/selftests/kvm/s390x/shared_zeropage_test.c new file mode 100644 index 000000000000..bba0d9a6dcc8 --- /dev/null +++ b/tools/testing/selftests/kvm/s390x/shared_zeropage_test.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Test shared zeropage handling (with/without storage keys) + * + * Copyright (C) 2024, Red Hat, Inc. + */ +#include <sys/mman.h> + +#include <linux/fs.h> + +#include "test_util.h" +#include "kvm_util.h" +#include "kselftest.h" +#include "ucall_common.h" + +static void set_storage_key(void *addr, uint8_t skey) +{ + asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); +} + +static void guest_code(void) +{ + /* Issue some storage key instruction. */ + set_storage_key((void *)0, 0x98); + GUEST_DONE(); +} + +/* + * Returns 1 if the shared zeropage is mapped, 0 if something else is mapped. + * Returns < 0 on error or if nothing is mapped. + */ +static int maps_shared_zeropage(int pagemap_fd, void *addr) +{ + struct page_region region; + struct pm_scan_arg arg = { + .start = (uintptr_t)addr, + .end = (uintptr_t)addr + 4096, + .vec = (uintptr_t)®ion, + .vec_len = 1, + .size = sizeof(struct pm_scan_arg), + .category_mask = PAGE_IS_PFNZERO, + .category_anyof_mask = PAGE_IS_PRESENT, + .return_mask = PAGE_IS_PFNZERO, + }; + return ioctl(pagemap_fd, PAGEMAP_SCAN, &arg); +} + +int main(int argc, char *argv[]) +{ + char *mem, *page0, *page1, *page2, tmp; + const size_t pagesize = getpagesize(); + struct kvm_vcpu *vcpu; + struct kvm_vm *vm; + struct ucall uc; + int pagemap_fd; + + ksft_print_header(); + ksft_set_plan(3); + + /* + * We'll use memory that is not mapped into the VM for simplicity. + * Shared zeropages are enabled/disabled per-process. + */ + mem = mmap(0, 3 * pagesize, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); + TEST_ASSERT(mem != MAP_FAILED, "mmap() failed"); + + /* Disable THP. Ignore errors on older kernels. */ + madvise(mem, 3 * pagesize, MADV_NOHUGEPAGE); + + page0 = mem; + page1 = page0 + pagesize; + page2 = page1 + pagesize; + + /* Can we even detect shared zeropages? */ + pagemap_fd = open("/proc/self/pagemap", O_RDONLY); + TEST_REQUIRE(pagemap_fd >= 0); + + tmp = *page0; + asm volatile("" : "+r" (tmp)); + TEST_REQUIRE(maps_shared_zeropage(pagemap_fd, page0) == 1); + + vm = vm_create_with_one_vcpu(&vcpu, guest_code); + + /* Verify that we get the shared zeropage after VM creation. */ + tmp = *page1; + asm volatile("" : "+r" (tmp)); + ksft_test_result(maps_shared_zeropage(pagemap_fd, page1) == 1, + "Shared zeropages should be enabled\n"); + + /* + * Let our VM execute a storage key instruction that should + * unshare all shared zeropages. + */ + vcpu_run(vcpu); + get_ucall(vcpu, &uc); + TEST_ASSERT_EQ(uc.cmd, UCALL_DONE); + + /* Verify that we don't have a shared zeropage anymore. */ + ksft_test_result(!maps_shared_zeropage(pagemap_fd, page1), + "Shared zeropage should be gone\n"); + + /* Verify that we don't get any new shared zeropages. */ + tmp = *page2; + asm volatile("" : "+r" (tmp)); + ksft_test_result(!maps_shared_zeropage(pagemap_fd, page2), + "Shared zeropages should be disabled\n"); + + kvm_vm_free(vm); + + ksft_finished(); +} diff --git a/tools/testing/selftests/net/hsr/config b/tools/testing/selftests/net/hsr/config index 22061204fb69..241542441c51 100644 --- a/tools/testing/selftests/net/hsr/config +++ b/tools/testing/selftests/net/hsr/config @@ -2,3 +2,4 @@ CONFIG_IPV6=y CONFIG_NET_SCH_NETEM=m CONFIG_HSR=y CONFIG_VETH=y +CONFIG_BRIDGE=y diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index edc030e81a46..9155c914c064 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -15,7 +15,7 @@ ksft_xfail=2 ksft_skip=4 # namespace list created by setup_ns -NS_LIST="" +NS_LIST=() ############################################################################## # Helpers @@ -27,6 +27,7 @@ __ksft_status_merge() local -A weights local weight=0 + local i for i in "$@"; do weights[$i]=$((weight++)) done @@ -67,9 +68,7 @@ loopy_wait() while true do local out - out=$("$@") - local ret=$? - if ((!ret)); then + if out=$("$@"); then echo -n "$out" return 0 fi @@ -139,6 +138,7 @@ cleanup_ns() fi for ns in "$@"; do + [ -z "${ns}" ] && continue ip netns delete "${ns}" &> /dev/null if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then echo "Warn: Failed to remove namespace $ns" @@ -152,7 +152,7 @@ cleanup_ns() cleanup_all_ns() { - cleanup_ns $NS_LIST + cleanup_ns "${NS_LIST[@]}" } # setup netns with given names as prefix. e.g @@ -161,7 +161,7 @@ setup_ns() { local ns="" local ns_name="" - local ns_list="" + local ns_list=() local ns_exist= for ns_name in "$@"; do # Some test may setup/remove same netns multi times @@ -177,13 +177,13 @@ setup_ns() if ! ip netns add "$ns"; then echo "Failed to create namespace $ns_name" - cleanup_ns "$ns_list" + cleanup_ns "${ns_list[@]}" return $ksft_skip fi ip -n "$ns" link set lo up - ! $ns_exist && ns_list="$ns_list $ns" + ! $ns_exist && ns_list+=("$ns") done - NS_LIST="$NS_LIST $ns_list" + NS_LIST+=("${ns_list[@]}") } tc_rule_stats_get() |