Merge tag 'powerpc-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Remove support for 40x CPUs & platforms

 - Add support to the 64-bit BPF JIT for cpu v4 instructions

 - Fix PCI hotplug driver crash on powernv

 - Fix doorbell emulation for KVM on PAPR guests (nestedv2)

 - Fix KVM nested guest handling of some less used SPRs

 - Online NUMA nodes with no CPU/memory if they have a PCI device
   attached

 - Reduce memory overhead of enabling kfence on 64-bit Radix MMU kernels

 - Reimplement the iommu table_group_ops for pseries for VFIO SPAPR TCE

Thanks to: Anjali K, Artem Savkov, Athira Rajeev, Breno Leitao, Brian
King, Celeste Liu, Christophe Leroy, Esben Haabendal, Gaurav Batra,
Gautam Menghani, Haren Myneni, Hari Bathini, Jeff Johnson, Krishna
Kumar, Krzysztof Kozlowski, Nathan Lynch, Nicholas Piggin, Nick Bowler,
Nilay Shroff, Rob Herring (Arm), Shawn Anastasio, Shivaprasad G Bhat,
Sourabh Jain, Srikar Dronamraju, Timothy Pearson, Uwe Kleine-König, and
Vaibhav Jain.

* tag 'powerpc-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (57 commits)
  Documentation/powerpc: Mention 40x is removed
  powerpc: Remove 40x leftovers
  macintosh/therm_windtunnel: fix module unload.
  powerpc: Check only single values are passed to CPU/MMU feature checks
  powerpc/xmon: Fix disassembly CPU feature checks
  powerpc: Drop clang workaround for builtin constant checks
  powerpc64/bpf: jit support for signed division and modulo
  powerpc64/bpf: jit support for sign extended mov
  powerpc64/bpf: jit support for sign extended load
  powerpc64/bpf: jit support for unconditional byte swap
  powerpc64/bpf: jit support for 32bit offset jmp instruction
  powerpc/pci: Hotplug driver bridge support
  pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv
  powerpc/configs: Update defconfig with now user-visible CONFIG_FSL_IFC
  powerpc: add missing MODULE_DESCRIPTION() macros
  macintosh/mac_hid: add MODULE_DESCRIPTION()
  KVM: PPC: add missing MODULE_DESCRIPTION() macros
  powerpc/kexec: Use of_property_read_reg()
  powerpc/64s/radix/kfence: map __kfence_pool at page granularity
  powerpc/pseries/iommu: Define spapr_tce_table_group_ops only with CONFIG_IOMMU_API
  ...

6 files changed, 161 insertions, 3 deletions

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index daaf7faf21a5..8f7d7e37bc8c 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2305,7 +2305,7 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
 		*val = get_reg_val(id, kvmppc_get_siar_hv(vcpu));
 		break;
 	case KVM_REG_PPC_SDAR:
-		*val = get_reg_val(id, kvmppc_get_siar_hv(vcpu));
+		*val = get_reg_val(id, kvmppc_get_sdar_hv(vcpu));
 		break;
 	case KVM_REG_PPC_SIER:
 		*val = get_reg_val(id, kvmppc_get_sier_hv(vcpu, 0));
@@ -2349,6 +2349,15 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
 	case KVM_REG_PPC_DAWRX1:
 		*val = get_reg_val(id, kvmppc_get_dawrx1_hv(vcpu));
 		break;
+	case KVM_REG_PPC_DEXCR:
+		*val = get_reg_val(id, kvmppc_get_dexcr_hv(vcpu));
+		break;
+	case KVM_REG_PPC_HASHKEYR:
+		*val = get_reg_val(id, kvmppc_get_hashkeyr_hv(vcpu));
+		break;
+	case KVM_REG_PPC_HASHPKEYR:
+		*val = get_reg_val(id, kvmppc_get_hashpkeyr_hv(vcpu));
+		break;
 	case KVM_REG_PPC_CIABR:
 		*val = get_reg_val(id, kvmppc_get_ciabr_hv(vcpu));
 		break;
@@ -2540,7 +2549,7 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
 		vcpu->arch.mmcrs = set_reg_val(id, *val);
 		break;
 	case KVM_REG_PPC_MMCR3:
-		*val = get_reg_val(id, vcpu->arch.mmcr[3]);
+		kvmppc_set_mmcr_hv(vcpu, 3, set_reg_val(id, *val));
 		break;
 	case KVM_REG_PPC_PMC1 ... KVM_REG_PPC_PMC8:
 		i = id - KVM_REG_PPC_PMC1;
@@ -2592,6 +2601,15 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
 	case KVM_REG_PPC_DAWRX1:
 		kvmppc_set_dawrx1_hv(vcpu, set_reg_val(id, *val) & ~DAWRX_HYP);
 		break;
+	case KVM_REG_PPC_DEXCR:
+		kvmppc_set_dexcr_hv(vcpu, set_reg_val(id, *val));
+		break;
+	case KVM_REG_PPC_HASHKEYR:
+		kvmppc_set_hashkeyr_hv(vcpu, set_reg_val(id, *val));
+		break;
+	case KVM_REG_PPC_HASHPKEYR:
+		kvmppc_set_hashpkeyr_hv(vcpu, set_reg_val(id, *val));
+		break;
 	case KVM_REG_PPC_CIABR:
 		kvmppc_set_ciabr_hv(vcpu, set_reg_val(id, *val));
 		/* Don't allow setting breakpoints in hypervisor code */
@@ -4108,6 +4126,77 @@ static void vcpu_vpa_increment_dispatch(struct kvm_vcpu *vcpu)
 	}
 }
 
+/* Helper functions for reading L2's stats from L1's VPA */
+#ifdef CONFIG_PPC_PSERIES
+static DEFINE_PER_CPU(u64, l1_to_l2_cs);
+static DEFINE_PER_CPU(u64, l2_to_l1_cs);
+static DEFINE_PER_CPU(u64, l2_runtime_agg);
+
+int kvmhv_get_l2_counters_status(void)
+{
+	return firmware_has_feature(FW_FEATURE_LPAR) &&
+		get_lppaca()->l2_counters_enable;
+}
+
+void kvmhv_set_l2_counters_status(int cpu, bool status)
+{
+	if (!firmware_has_feature(FW_FEATURE_LPAR))
+		return;
+	if (status)
+		lppaca_of(cpu).l2_counters_enable = 1;
+	else
+		lppaca_of(cpu).l2_counters_enable = 0;
+}
+
+int kmvhv_counters_tracepoint_regfunc(void)
+{
+	int cpu;
+
+	for_each_present_cpu(cpu) {
+		kvmhv_set_l2_counters_status(cpu, true);
+	}
+	return 0;
+}
+
+void kmvhv_counters_tracepoint_unregfunc(void)
+{
+	int cpu;
+
+	for_each_present_cpu(cpu) {
+		kvmhv_set_l2_counters_status(cpu, false);
+	}
+}
+
+static void do_trace_nested_cs_time(struct kvm_vcpu *vcpu)
+{
+	struct lppaca *lp = get_lppaca();
+	u64 l1_to_l2_ns, l2_to_l1_ns, l2_runtime_ns;
+	u64 *l1_to_l2_cs_ptr = this_cpu_ptr(&l1_to_l2_cs);
+	u64 *l2_to_l1_cs_ptr = this_cpu_ptr(&l2_to_l1_cs);
+	u64 *l2_runtime_agg_ptr = this_cpu_ptr(&l2_runtime_agg);
+
+	l1_to_l2_ns = tb_to_ns(be64_to_cpu(lp->l1_to_l2_cs_tb));
+	l2_to_l1_ns = tb_to_ns(be64_to_cpu(lp->l2_to_l1_cs_tb));
+	l2_runtime_ns = tb_to_ns(be64_to_cpu(lp->l2_runtime_tb));
+	trace_kvmppc_vcpu_stats(vcpu, l1_to_l2_ns - *l1_to_l2_cs_ptr,
+					l2_to_l1_ns - *l2_to_l1_cs_ptr,
+					l2_runtime_ns - *l2_runtime_agg_ptr);
+	*l1_to_l2_cs_ptr = l1_to_l2_ns;
+	*l2_to_l1_cs_ptr = l2_to_l1_ns;
+	*l2_runtime_agg_ptr = l2_runtime_ns;
+}
+
+#else
+int kvmhv_get_l2_counters_status(void)
+{
+	return 0;
+}
+
+static void do_trace_nested_cs_time(struct kvm_vcpu *vcpu)
+{
+}
+#endif
+
 static int kvmhv_vcpu_entry_nestedv2(struct kvm_vcpu *vcpu, u64 time_limit,
 				     unsigned long lpcr, u64 *tb)
 {
@@ -4116,6 +4205,11 @@ static int kvmhv_vcpu_entry_nestedv2(struct kvm_vcpu *vcpu, u64 time_limit,
 	int trap;
 	long rc;
 
+	if (vcpu->arch.doorbell_request) {
+		vcpu->arch.doorbell_request = 0;
+		kvmppc_set_dpdes(vcpu, 1);
+	}
+
 	io = &vcpu->arch.nestedv2_io;
 
 	msr = mfmsr();
@@ -4156,6 +4250,10 @@ static int kvmhv_vcpu_entry_nestedv2(struct kvm_vcpu *vcpu, u64 time_limit,
 
 	timer_rearm_host_dec(*tb);
 
+	/* Record context switch and guest_run_time data */
+	if (kvmhv_get_l2_counters_status())
+		do_trace_nested_cs_time(vcpu);
+
 	return trap;
 }
 
@@ -6519,6 +6617,7 @@ static void kvmppc_book3s_exit_hv(void)
 
 module_init(kvmppc_book3s_init_hv);
 module_exit(kvmppc_book3s_exit_hv);
+MODULE_DESCRIPTION("KVM on Book3S (POWER8 and later) in hypervisor mode");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(KVM_MINOR);
 MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/book3s_hv.h b/arch/powerpc/kvm/book3s_hv.h
index 47b2c815641e..a404c9b221c1 100644
--- a/arch/powerpc/kvm/book3s_hv.h
+++ b/arch/powerpc/kvm/book3s_hv.h
@@ -116,6 +116,9 @@ KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64, KVMPPC_GSID_DAWR0)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64, KVMPPC_GSID_DAWR1)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64, KVMPPC_GSID_DAWRX0)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64, KVMPPC_GSID_DAWRX1)
+KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dexcr, 64, KVMPPC_GSID_DEXCR)
+KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashkeyr, 64, KVMPPC_GSID_HASHKEYR)
+KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashpkeyr, 64, KVMPPC_GSID_HASHPKEYR)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64, KVMPPC_GSID_CIABR)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64, KVMPPC_GSID_WORT)
 KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64, KVMPPC_GSID_PPR)
diff --git a/arch/powerpc/kvm/book3s_hv_nestedv2.c b/arch/powerpc/kvm/book3s_hv_nestedv2.c
index 1091f7a83b25..eeecea8f202b 100644
--- a/arch/powerpc/kvm/book3s_hv_nestedv2.c
+++ b/arch/powerpc/kvm/book3s_hv_nestedv2.c
@@ -193,6 +193,15 @@ static int gs_msg_ops_vcpu_fill_info(struct kvmppc_gs_buff *gsb,
 		case KVMPPC_GSID_DAWRX1:
 			rc = kvmppc_gse_put_u32(gsb, iden, vcpu->arch.dawrx1);
 			break;
+		case KVMPPC_GSID_DEXCR:
+			rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.dexcr);
+			break;
+		case KVMPPC_GSID_HASHKEYR:
+			rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.hashkeyr);
+			break;
+		case KVMPPC_GSID_HASHPKEYR:
+			rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.hashpkeyr);
+			break;
 		case KVMPPC_GSID_CIABR:
 			rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.ciabr);
 			break;
@@ -311,6 +320,10 @@ static int gs_msg_ops_vcpu_fill_info(struct kvmppc_gs_buff *gsb,
 			rc = kvmppc_gse_put_u64(gsb, iden,
 						vcpu->arch.vcore->vtb);
 			break;
+		case KVMPPC_GSID_DPDES:
+			rc = kvmppc_gse_put_u64(gsb, iden,
+						vcpu->arch.vcore->dpdes);
+			break;
 		case KVMPPC_GSID_LPCR:
 			rc = kvmppc_gse_put_u64(gsb, iden,
 						vcpu->arch.vcore->lpcr);
@@ -441,6 +454,15 @@ static int gs_msg_ops_vcpu_refresh_info(struct kvmppc_gs_msg *gsm,
 		case KVMPPC_GSID_DAWRX1:
 			vcpu->arch.dawrx1 = kvmppc_gse_get_u32(gse);
 			break;
+		case KVMPPC_GSID_DEXCR:
+			vcpu->arch.dexcr = kvmppc_gse_get_u64(gse);
+			break;
+		case KVMPPC_GSID_HASHKEYR:
+			vcpu->arch.hashkeyr = kvmppc_gse_get_u64(gse);
+			break;
+		case KVMPPC_GSID_HASHPKEYR:
+			vcpu->arch.hashpkeyr = kvmppc_gse_get_u64(gse);
+			break;
 		case KVMPPC_GSID_CIABR:
 			vcpu->arch.ciabr = kvmppc_gse_get_u64(gse);
 			break;
@@ -543,6 +565,9 @@ static int gs_msg_ops_vcpu_refresh_info(struct kvmppc_gs_msg *gsm,
 		case KVMPPC_GSID_VTB:
 			vcpu->arch.vcore->vtb = kvmppc_gse_get_u64(gse);
 			break;
+		case KVMPPC_GSID_DPDES:
+			vcpu->arch.vcore->dpdes = kvmppc_gse_get_u64(gse);
+			break;
 		case KVMPPC_GSID_LPCR:
 			vcpu->arch.vcore->lpcr = kvmppc_gse_get_u64(gse);
 			break;
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index a7d7137ea0c8..7b8ae509328f 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -2111,6 +2111,7 @@ void kvmppc_book3s_exit_pr(void)
 module_init(kvmppc_book3s_init_pr);
 module_exit(kvmppc_book3s_exit_pr);
 
+MODULE_DESCRIPTION("KVM on Book3S without using hypervisor mode");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(KVM_MINOR);
 MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/test-guest-state-buffer.c b/arch/powerpc/kvm/test-guest-state-buffer.c
index 4720b8dc8837..bfd225329a18 100644
--- a/arch/powerpc/kvm/test-guest-state-buffer.c
+++ b/arch/powerpc/kvm/test-guest-state-buffer.c
@@ -151,7 +151,7 @@ static void test_gs_bitmap(struct kunit *test)
 		i++;
 	}
 
-	for (u16 iden = KVMPPC_GSID_GPR(0); iden <= KVMPPC_GSID_CTRL; iden++) {
+	for (u16 iden = KVMPPC_GSID_GPR(0); iden <= KVMPPC_GSE_DW_REGS_END; iden++) {
 		kvmppc_gsbm_set(&gsbm, iden);
 		kvmppc_gsbm_set(&gsbm1, iden);
 		KUNIT_EXPECT_TRUE(test, kvmppc_gsbm_test(&gsbm, iden));
@@ -325,4 +325,5 @@ static struct kunit_suite guest_state_buffer_test_suite = {
 
 kunit_test_suites(&guest_state_buffer_test_suite);
 
+MODULE_DESCRIPTION("KUnit tests for Guest State Buffer APIs");
 MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/kvm/trace_hv.h b/arch/powerpc/kvm/trace_hv.h
index 8d57c8428531..77ebc724e6cd 100644
--- a/arch/powerpc/kvm/trace_hv.h
+++ b/arch/powerpc/kvm/trace_hv.h
@@ -512,6 +512,35 @@ TRACE_EVENT(kvmppc_run_vcpu_exit,
 			__entry->vcpu_id, __entry->exit, __entry->ret)
 );
 
+#ifdef CONFIG_PPC_PSERIES
+
+TRACE_EVENT_FN_COND(kvmppc_vcpu_stats,
+	TP_PROTO(struct kvm_vcpu *vcpu, u64 l1_to_l2_cs, u64 l2_to_l1_cs, u64 l2_runtime),
+
+	TP_ARGS(vcpu, l1_to_l2_cs, l2_to_l1_cs, l2_runtime),
+
+	TP_CONDITION(l1_to_l2_cs || l2_to_l1_cs || l2_runtime),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(u64,		l1_to_l2_cs)
+		__field(u64,		l2_to_l1_cs)
+		__field(u64,		l2_runtime)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->l1_to_l2_cs = l1_to_l2_cs;
+		__entry->l2_to_l1_cs = l2_to_l1_cs;
+		__entry->l2_runtime = l2_runtime;
+	),
+
+	TP_printk("VCPU %d: l1_to_l2_cs_time=%llu ns l2_to_l1_cs_time=%llu ns l2_runtime=%llu ns",
+		__entry->vcpu_id,  __entry->l1_to_l2_cs,
+		__entry->l2_to_l1_cs, __entry->l2_runtime),
+	kmvhv_counters_tracepoint_regfunc, kmvhv_counters_tracepoint_unregfunc
+);
+#endif
 #endif /* _TRACE_KVM_HV_H */
 
 /* This part must be outside protection */