[PATCH] KVM: PPC: Book3S HV: Tracepoints for KVM HV guest interactions

["Suresh E. Warrier" <warrier@linux.vnet.ibm.com>]

This patch adds trace points in the guest entry and exit code and also
for exceptions handled by the host in kernel mode - hypercalls and page
faults. The new events are added to /sys/kernel/debug/tracing/events
under a new subsystem called kvm_hv.

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
---
 arch/powerpc/kvm/book3s_64_mmu_hv.c |  12 +-
 arch/powerpc/kvm/book3s_hv.c        |  19 ++
 arch/powerpc/kvm/trace_hv.h         | 497 ++++++++++++++++++++++++++++++++++++
 3 files changed, 525 insertions(+), 3 deletions(-)
 create mode 100644 arch/powerpc/kvm/trace_hv.h

diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 70feb7b..20cbad1 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -38,6 +38,7 @@
 #include <asm/cputable.h>
 
 #include "book3s_hv_cma.h"
+#include "trace_hv.h"
 
 /* POWER7 has 10-bit LPIDs, PPC970 has 6-bit LPIDs */
 #define MAX_LPID_970	63
@@ -627,6 +628,8 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	gfn = gpa >> PAGE_SHIFT;
 	memslot = gfn_to_memslot(kvm, gfn);
 
+	trace_kvm_page_fault_enter(vcpu, hpte, memslot, ea, dsisr);
+
 	/* No memslot means it's an emulated MMIO region */
 	if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID))
 		return kvmppc_hv_emulate_mmio(run, vcpu, gpa, ea,
@@ -639,6 +642,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	mmu_seq = kvm->mmu_notifier_seq;
 	smp_rmb();
 
+	ret = -EFAULT;
 	is_io = 0;
 	pfn = 0;
 	page = NULL;
@@ -662,7 +666,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		}
 		up_read(&current->mm->mmap_sem);
 		if (!pfn)
-			return -EFAULT;
+			goto out_put;
 	} else {
 		page = pages[0];
 		if (PageHuge(page)) {
@@ -690,14 +694,14 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		pfn = page_to_pfn(page);
 	}
 
-	ret = -EFAULT;
 	if (psize > pte_size)
 		goto out_put;
 
 	/* Check WIMG vs. the actual page we're accessing */
 	if (!hpte_cache_flags_ok(r, is_io)) {
 		if (is_io)
-			return -EFAULT;
+			goto out_put;
+
 		/*
 		 * Allow guest to map emulated device memory as
 		 * uncacheable, but actually make it cacheable.
@@ -753,6 +757,8 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		SetPageDirty(page);
 
  out_put:
+	trace_kvm_page_fault_exit(vcpu, hpte, ret);
+
 	if (page) {
 		/*
 		 * We drop pages[0] here, not page because page might
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 69d4085..5143d17 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -57,6 +57,9 @@
 
 #include "book3s.h"
 
+#define CREATE_TRACE_POINTS
+#include "trace_hv.h"
+
 /* #define EXIT_DEBUG */
 /* #define EXIT_DEBUG_SIMPLE */
 /* #define EXIT_DEBUG_INT */
@@ -1679,6 +1682,7 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
 	list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) {
 		kvmppc_start_thread(vcpu);
 		kvmppc_create_dtl_entry(vcpu, vc);
+		trace_kvm_guest_enter(vcpu);
 	}
 
 	/* Set this explicitly in case thread 0 doesn't have a vcpu */
@@ -1687,6 +1691,9 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
 
 	vc->vcore_state = VCORE_RUNNING;
 	preempt_disable();
+
+	trace_kvmppc_run_core(vc, 0);
+
 	spin_unlock(&vc->lock);
 
 	kvm_guest_enter();
@@ -1732,6 +1739,8 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
 		    kvmppc_core_pending_dec(vcpu))
 			kvmppc_core_dequeue_dec(vcpu);
 
+		trace_kvm_guest_exit(vcpu);
+
 		ret = RESUME_GUEST;
 		if (vcpu->arch.trap)
 			ret = kvmppc_handle_exit_hv(vcpu->arch.kvm_run, vcpu,
@@ -1757,6 +1766,8 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
 			wake_up(&vcpu->arch.cpu_run);
 		}
 	}
+
+	trace_kvmppc_run_core(vc, 1);
 }
 
 /*
@@ -1783,11 +1794,13 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc)
 
 	prepare_to_wait(&vc->wq, &wait, TASK_INTERRUPTIBLE);
 	vc->vcore_state = VCORE_SLEEPING;
+	trace_kvmppc_vcore_blocked(vc, 0);
 	spin_unlock(&vc->lock);
 	schedule();
 	finish_wait(&vc->wq, &wait);
 	spin_lock(&vc->lock);
 	vc->vcore_state = VCORE_INACTIVE;
+	trace_kvmppc_vcore_blocked(vc, 1);
 }
 
 static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
@@ -1796,6 +1809,8 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	struct kvmppc_vcore *vc;
 	struct kvm_vcpu *v, *vn;
 
+	trace_kvmppc_run_vcpu_enter(vcpu);
+
 	kvm_run->exit_reason = 0;
 	vcpu->arch.ret = RESUME_GUEST;
 	vcpu->arch.trap = 0;
@@ -1825,6 +1840,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 		    VCORE_EXIT_COUNT(vc) = 0) {
 			kvmppc_create_dtl_entry(vcpu, vc);
 			kvmppc_start_thread(vcpu);
+			trace_kvm_guest_enter(vcpu);
 		} else if (vc->vcore_state = VCORE_SLEEPING) {
 			wake_up(&vc->wq);
 		}
@@ -1889,6 +1905,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 		wake_up(&v->arch.cpu_run);
 	}
 
+	trace_kvmppc_run_vcpu_exit(vcpu, kvm_run);
 	spin_unlock(&vc->lock);
 	return vcpu->arch.ret;
 }
@@ -1934,7 +1951,9 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
 
 		if (run->exit_reason = KVM_EXIT_PAPR_HCALL &&
 		    !(vcpu->arch.shregs.msr & MSR_PR)) {
+			trace_kvm_hcall_enter(vcpu);
 			r = kvmppc_pseries_do_hcall(vcpu);
+			trace_kvm_hcall_exit(vcpu, r);
 			kvmppc_core_prepare_to_enter(vcpu);
 		} else if (r = RESUME_PAGE_FAULT) {
 			srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
diff --git a/arch/powerpc/kvm/trace_hv.h b/arch/powerpc/kvm/trace_hv.h
new file mode 100644
index 0000000..2d2e55f
--- /dev/null
+++ b/arch/powerpc/kvm/trace_hv.h
@@ -0,0 +1,497 @@
+#if !defined(_TRACE_KVM_HV_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_KVM_HV_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kvm_hv
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_hv
+
+#define kvm_trace_symbol_exit \
+	{0x100, "SYSTEM_RESET"}, \
+	{0x200, "MACHINE_CHECK"}, \
+	{0x300, "DATA_STORAGE"}, \
+	{0x380, "DATA_SEGMENT"}, \
+	{0x400, "INST_STORAGE"}, \
+	{0x480, "INST_SEGMENT"}, \
+	{0x500, "EXTERNAL"}, \
+	{0x502, "EXTERNAL_HV"}, \
+	{0x600, "ALIGNMENT"}, \
+	{0x700, "PROGRAM"}, \
+	{0x800, "FP_UNAVAIL"}, \
+	{0x900, "DECREMENTER"}, \
+	{0x980, "HV_DECREMENTER"}, \
+	{0xc00, "SYSCALL"}, \
+	{0xd00, "TRACE"}, \
+	{0xe00, "H_DATA_STORAGE"}, \
+	{0xe20, "H_INST_STORAGE"}, \
+	{0xe40, "H_EMUL_ASSIST"}, \
+	{0xf00, "PERFMON"}, \
+	{0xf20, "ALTIVEC"}, \
+	{0xf40, "VSX"}
+
+#define kvm_trace_symbol_hcall \
+	{0x04, "H_REMOVE"}, \
+	{0x08, "H_ENTER"}, \
+	{0x0c, "H_READ"}, \
+	{0x10, "H_CLEAR_MOD"}, \
+	{0x14, "H_CLEAR_REF"}, \
+	{0x18, "H_PROTECT"}, \
+	{0x1c, "H_GET_TCE"}, \
+	{0x20, "H_PUT_TCE"}, \
+	{0x24, "H_SET_SPRG0"}, \
+	{0x28, "H_SET_DABR"}, \
+	{0x2c, "H_PAGE_INIT"}, \
+	{0x30, "H_SET_ASR"}, \
+	{0x34, "H_ASR_ON"}, \
+	{0x38, "H_ASR_OFF"}, \
+	{0x3c, "H_LOGICAL_CI_LOAD"}, \
+	{0x40, "H_LOGICAL_CI_STORE"}, \
+	{0x44, "H_LOGICAL_CACHE_LOAD"}, \
+	{0x48, "H_LOGICAL_CACHE_STORE"}, \
+	{0x4c, "H_LOGICAL_ICBI"}, \
+	{0x50, "H_LOGICAL_DCBF"}, \
+	{0x54, "H_GET_TERM_CHAR"}, \
+	{0x58, "H_PUT_TERM_CHAR"}, \
+	{0x5c, "H_REAL_TO_LOGICAL"}, \
+	{0x60, "H_HYPERVISOR_DATA"}, \
+	{0x64, "H_EOI"}, \
+	{0x68, "H_CPPR"}, \
+	{0x6c, "H_IPI"}, \
+	{0x70, "H_IPOLL"}, \
+	{0x74, "H_XIRR"}, \
+	{0x7c, "H_PERFMON"}, \
+	{0x78, "H_MIGRATE_DMA"}, \
+	{0xDC, "H_REGISTER_VPA"}, \
+	{0xE0, "H_CEDE"}, \
+	{0xE4, "H_CONFER"}, \
+	{0xE8, "H_PROD"}, \
+	{0xEC, "H_GET_PPP"}, \
+	{0xF0, "H_SET_PPP"}, \
+	{0xF4, "H_PURR"}, \
+	{0xF8, "H_PIC"}, \
+	{0xFC, "H_REG_CRQ"}, \
+	{0x100, "H_FREE_CRQ"}, \
+	{0x104, "H_VIO_SIGNAL"}, \
+	{0x108, "H_SEND_CRQ"}, \
+	{0x110, "H_COPY_RDMA"}, \
+	{0x114, "H_REGISTER_LOGICAL_LAN"}, \
+	{0x118, "H_FREE_LOGICAL_LAN"}, \
+	{0x11C, "H_ADD_LOGICAL_LAN_BUFFER"}, \
+	{0x120, "H_SEND_LOGICAL_LAN"}, \
+	{0x124, "H_BULK_REMOVE"}, \
+	{0x130, "H_MULTICAST_CTRL"}, \
+	{0x134, "H_SET_XDABR"}, \
+	{0x138, "H_STUFF_TCE"}, \
+	{0x13C, "H_PUT_TCE_INDIRECT"}, \
+	{0x14C, "H_CHANGE_LOGICAL_LAN_MAC"}, \
+	{0x150, "H_VTERM_PARTNER_INFO"}, \
+	{0x154, "H_REGISTER_VTERM"}, \
+	{0x158, "H_FREE_VTERM"}, \
+	{0x15C, "H_RESET_EVENTS"}, \
+	{0x160, "H_ALLOC_RESOURCE"}, \
+	{0x164, "H_FREE_RESOURCE"}, \
+	{0x168, "H_MODIFY_QP"}, \
+	{0x16C, "H_QUERY_QP"}, \
+	{0x170, "H_REREGISTER_PMR"}, \
+	{0x174, "H_REGISTER_SMR"}, \
+	{0x178, "H_QUERY_MR"}, \
+	{0x17C, "H_QUERY_MW"}, \
+	{0x180, "H_QUERY_HCA"}, \
+	{0x184, "H_QUERY_PORT"}, \
+	{0x188, "H_MODIFY_PORT"}, \
+	{0x18C, "H_DEFINE_AQP1"}, \
+	{0x190, "H_GET_TRACE_BUFFER"}, \
+	{0x194, "H_DEFINE_AQP0"}, \
+	{0x198, "H_RESIZE_MR"}, \
+	{0x19C, "H_ATTACH_MCQP"}, \
+	{0x1A0, "H_DETACH_MCQP"}, \
+	{0x1A4, "H_CREATE_RPT"}, \
+	{0x1A8, "H_REMOVE_RPT"}, \
+	{0x1AC, "H_REGISTER_RPAGES"}, \
+	{0x1B0, "H_DISABLE_AND_GETC"}, \
+	{0x1B4, "H_ERROR_DATA"}, \
+	{0x1B8, "H_GET_HCA_INFO"}, \
+	{0x1BC, "H_GET_PERF_COUNT"}, \
+	{0x1C0, "H_MANAGE_TRACE"}, \
+	{0x1D4, "H_FREE_LOGICAL_LAN_BUFFER"}, \
+	{0x1E4, "H_QUERY_INT_STATE"}, \
+	{0x1D8, "H_POLL_PENDING"}, \
+	{0x244, "H_ILLAN_ATTRIBUTES"}, \
+	{0x250, "H_MODIFY_HEA_QP"}, \
+	{0x254, "H_QUERY_HEA_QP"}, \
+	{0x258, "H_QUERY_HEA"}, \
+	{0x25C, "H_QUERY_HEA_PORT"}, \
+	{0x260, "H_MODIFY_HEA_PORT"}, \
+	{0x264, "H_REG_BCMC"}, \
+	{0x268, "H_DEREG_BCMC"}, \
+	{0x26C, "H_REGISTER_HEA_RPAGES"}, \
+	{0x270, "H_DISABLE_AND_GET_HEA"}, \
+	{0x274, "H_GET_HEA_INFO"}, \
+	{0x278, "H_ALLOC_HEA_RESOURCE"}, \
+	{0x284, "H_ADD_CONN"}, \
+	{0x288, "H_DEL_CONN"}, \
+	{0x298, "H_JOIN"}, \
+	{0x2A4, "H_VASI_STATE"}, \
+	{0x2B0, "H_ENABLE_CRQ"}, \
+	{0x2B8, "H_GET_EM_PARMS"}, \
+	{0x2D0, "H_SET_MPP"}, \
+	{0x2D4, "H_GET_MPP"}, \
+	{0x2EC, "H_HOME_NODE_ASSOCIATIVITY"}, \
+	{0x2F4, "H_BEST_ENERGY"}, \
+	{0x2FC, "H_XIRR_X"}, \
+	{0x300, "H_RANDOM"}, \
+	{0x304, "H_COP"}, \
+	{0x314, "H_GET_MPP_X"}, \
+	{0x31C, "H_SET_MODE"}, \
+	{0xf000, "H_RTAS"}
+
+#define kvm_trace_symbol_kvmret \
+	{0, "RESUME_GUEST"}, \
+	{1, "RESUME_GUEST_NV"}, \
+	{2, "RESUME_HOST"}, \
+	{3, "RESUME_HOST_NV"}
+
+#define kvm_trace_symbol_hcall_rc \
+	{0, "H_SUCCESS"}, \
+	{1, "H_BUSY"}, \
+	{2, "H_CLOSED"}, \
+	{3, "H_NOT_AVAILABLE"}, \
+	{4, "H_CONSTRAINED"}, \
+	{5, "H_PARTIAL"}, \
+	{14, "H_IN_PROGRESS"}, \
+	{15, "H_PAGE_REGISTERED"}, \
+	{16, "H_PARTIAL_STORE"}, \
+	{17, "H_PENDING"}, \
+	{18, "H_CONTINUE"}, \
+	{9900, "H_LONG_BUSY_START_RANGE"}, \
+	{9900, "H_LONG_BUSY_ORDER_1_MSEC"}, \
+	{9901, "H_LONG_BUSY_ORDER_10_MSEC"}, \
+	{9902, "H_LONG_BUSY_ORDER_100_MSEC"}, \
+	{9903, "H_LONG_BUSY_ORDER_1_SEC"}, \
+	{9904, "H_LONG_BUSY_ORDER_10_SEC"}, \
+	{9905, "H_LONG_BUSY_ORDER_100_SEC"}, \
+	{9905, "H_LONG_BUSY_END_RANGE"}, \
+	{9999, "H_TOO_HARD"}, \
+	{-1, "H_HARDWARE"}, \
+	{-2, "H_FUNCTION"}, \
+	{-3, "H_PRIVILEGE"}, \
+	{-4, "H_PARAMETER"}, \
+	{-5, "H_BAD_MODE"}, \
+	{-6, "H_PTEG_FULL"}, \
+	{-7, "H_NOT_FOUND"}, \
+	{-8, "H_RESERVED_DABR"}, \
+	{-9, "H_NO_MEM"}, \
+	{-10, "H_AUTHORITY"}, \
+	{-11, "H_PERMISSION"}, \
+	{-12, "H_DROPPED"}, \
+	{-13, "H_SOURCE_PARM"}, \
+	{-14, "H_DEST_PARM"}, \
+	{-15, "H_REMOTE_PARM"}, \
+	{-16, "H_RESOURCE"}, \
+	{-17, "H_ADAPTER_PARM"}, \
+	{-18, "H_RH_PARM"}, \
+	{-19, "H_RCQ_PARM"}, \
+	{-20, "H_SCQ_PARM"}, \
+	{-21, "H_EQ_PARM"}, \
+	{-22, "H_RT_PARM"}, \
+	{-23, "H_ST_PARM"}, \
+	{-24, "H_SIGT_PARM"}, \
+	{-25, "H_TOKEN_PARM"}, \
+	{-27, "H_MLENGTH_PARM"}, \
+	{-28, "H_MEM_PARM"}, \
+	{-29, "H_MEM_ACCESS_PARM"}, \
+	{-30, "H_ATTR_PARM"}, \
+	{-31, "H_PORT_PARM"}, \
+	{-32, "H_MCG_PARM"}, \
+	{-33, "H_VL_PARM"}, \
+	{-34, "H_TSIZE_PARM"}, \
+	{-35, "H_TRACE_PARM"}, \
+	{-37, "H_MASK_PARM"}, \
+	{-38, "H_MCG_FULL"}, \
+	{-39, "H_ALIAS_EXIST"}, \
+	{-40, "H_P_COUNTER"}, \
+	{-41, "H_TABLE_FULL"}, \
+	{-42, "H_ALT_TABLE"}, \
+	{-43, "H_MR_CONDITION"}, \
+	{-44, "H_NOT_ENOUGH_RESOURCES"}, \
+	{-45, "H_R_STATE"}, \
+	{-46, "H_RESCINDED"}, \
+	{-55, "H_P2"}, \
+	{-56, "H_P3"}, \
+	{-57, "H_P4"}, \
+	{-58, "H_P5"}, \
+	{-59, "H_P6"}, \
+	{-60, "H_P7"}, \
+	{-61, "H_P8"}, \
+	{-62, "H_P9"}, \
+	{-64, "H_TOO_BIG"}, \
+	{-68, "H_OVERLAP"}, \
+	{-69, "H_INTERRUPT"}, \
+	{-70, "H_BAD_DATA"}, \
+	{-71, "H_NOT_ACTIVE"}, \
+	{-72, "H_SG_LIST"}, \
+	{-73, "H_OP_MODE"}, \
+	{-74, "H_COP_HW"}, \
+	{-256, "H_UNSUPPORTED_FLAG_START"}, \
+	{-511, "H_UNSUPPORTED_FLAG_END"}, \
+	{-9005, "H_MULTI_THREADS_ACTIVE"}, \
+	{-9006, "H_OUTSTANDING_COP_OPS"}
+
+TRACE_EVENT(kvm_guest_enter,
+	TP_PROTO(struct kvm_vcpu *vcpu),
+	TP_ARGS(vcpu),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(unsigned long,	pc)
+		__field(unsigned long,  pending_exceptions)
+		__field(u8,		ceded)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id	= vcpu->vcpu_id;
+		__entry->pc		= kvmppc_get_pc(vcpu);
+		__entry->ceded		= vcpu->arch.ceded;
+		__entry->pending_exceptions  = vcpu->arch.pending_exceptions;
+	),
+
+	TP_printk("VCPU %d: pc=0x%lx pexcp=0x%lx ceded=%d",
+			__entry->vcpu_id,
+			__entry->pc,
+			__entry->pending_exceptions, __entry->ceded)
+);
+
+TRACE_EVENT(kvm_guest_exit,
+	TP_PROTO(struct kvm_vcpu *vcpu),
+	TP_ARGS(vcpu),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(int,		trap)
+		__field(unsigned long,	pc)
+		__field(unsigned long,	msr)
+		__field(u8,		ceded)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id = vcpu->vcpu_id;
+		__entry->trap	 = vcpu->arch.trap;
+		__entry->ceded	 = vcpu->arch.ceded;
+		__entry->pc	 = kvmppc_get_pc(vcpu);
+		__entry->msr	 = vcpu->arch.shregs.msr;
+	),
+
+	TP_printk("VCPU %d: trap=%s pc=0x%lx msr=0x%lx, ceded=%d",
+		__entry->vcpu_id,
+		__print_symbolic(__entry->trap, kvm_trace_symbol_exit),
+		__entry->pc, __entry->msr, __entry->ceded
+	)
+);
+
+TRACE_EVENT(kvm_page_fault_enter,
+	TP_PROTO(struct kvm_vcpu *vcpu, unsigned long *hptep,
+		 struct kvm_memory_slot *memslot, unsigned long ea,
+		 unsigned long dsisr),
+
+	TP_ARGS(vcpu, hptep, memslot, ea, dsisr),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(unsigned long,	hpte_v)
+		__field(unsigned long,	hpte_r)
+		__field(unsigned long,	gpte_r)
+		__field(unsigned long,	ea)
+		__field(u64,		base_gfn)
+		__field(u32,		slot_flags)
+		__field(u32,		dsisr)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->hpte_v	  = hptep[0];
+		__entry->hpte_r	  = hptep[1];
+		__entry->gpte_r	  = hptep[2];
+		__entry->ea	  = ea;
+		__entry->dsisr	  = dsisr;
+		__entry->base_gfn = memslot ? memslot->base_gfn : -1UL;
+		__entry->slot_flags = memslot ? memslot->flags : 0;
+	),
+
+	TP_printk("VCPU %d: hpte=0x%lx:0x%lx guest=0x%lx ea=0x%lx,%x slot=0x%llx,0x%x",
+		   __entry->vcpu_id,
+		   __entry->hpte_v, __entry->hpte_r, __entry->gpte_r,
+		   __entry->ea, __entry->dsisr,
+		   __entry->base_gfn, __entry->slot_flags)
+);
+
+TRACE_EVENT(kvm_page_fault_exit,
+	TP_PROTO(struct kvm_vcpu *vcpu, unsigned long *hptep, long ret),
+
+	TP_ARGS(vcpu, hptep, ret),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(unsigned long,	hpte_v)
+		__field(unsigned long,	hpte_r)
+		__field(long,		ret)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->hpte_v	= hptep[0];
+		__entry->hpte_r	= hptep[1];
+		__entry->ret = ret;
+	),
+
+	TP_printk("VCPU %d: hpte=0x%lx:0x%lx ret=0x%lx",
+		   __entry->vcpu_id,
+		   __entry->hpte_v, __entry->hpte_r, __entry->ret)
+);
+
+TRACE_EVENT(kvm_hcall_enter,
+	TP_PROTO(struct kvm_vcpu *vcpu),
+
+	TP_ARGS(vcpu),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(unsigned long,	req)
+		__field(unsigned long,	gpr4)
+		__field(unsigned long,	gpr5)
+		__field(unsigned long,	gpr6)
+		__field(unsigned long,	gpr7)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->req   = kvmppc_get_gpr(vcpu, 3);
+		__entry->gpr4  = kvmppc_get_gpr(vcpu, 4);
+		__entry->gpr5  = kvmppc_get_gpr(vcpu, 5);
+		__entry->gpr6  = kvmppc_get_gpr(vcpu, 6);
+		__entry->gpr7  = kvmppc_get_gpr(vcpu, 7);
+	),
+
+	TP_printk("VCPU %d: hcall=%s GPR4-7=0x%lx,0x%lx,0x%lx,0x%lx",
+		   __entry->vcpu_id,
+		   __print_symbolic(__entry->req, kvm_trace_symbol_hcall),
+		   __entry->gpr4, __entry->gpr5, __entry->gpr6, __entry->gpr7)
+);
+
+TRACE_EVENT(kvm_hcall_exit,
+	TP_PROTO(struct kvm_vcpu *vcpu, int ret),
+
+	TP_ARGS(vcpu, ret),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(unsigned long,	ret)
+		__field(unsigned long,	hcall_rc)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->ret	  = ret;
+		__entry->hcall_rc = kvmppc_get_gpr(vcpu, 3);
+	),
+
+	TP_printk("VCPU %d: ret=%s hcall_rc=%s",
+		   __entry->vcpu_id,
+		   __print_symbolic(__entry->ret, kvm_trace_symbol_kvmret),
+		   __print_symbolic(__entry->ret & RESUME_FLAG_HOST ?
+					H_TOO_HARD : __entry->hcall_rc,
+					kvm_trace_symbol_hcall_rc))
+);
+
+TRACE_EVENT(kvmppc_run_core,
+	TP_PROTO(struct kvmppc_vcore *vc, int where),
+
+	TP_ARGS(vc, where),
+
+	TP_STRUCT__entry(
+		__field(int,	n_runnable)
+		__field(int,	runner_vcpu)
+		__field(int,	where)
+		__field(pid_t,	tgid)
+	),
+
+	TP_fast_assign(
+		__entry->runner_vcpu	= vc->runner->vcpu_id;
+		__entry->n_runnable	= vc->n_runnable;
+		__entry->where		= where;
+		__entry->tgid		= current->tgid;
+	),
+
+	TP_printk("%s runner_vcpu=%d runnable=%d tgid=%d",
+		    __entry->where ? "Exit" : "Enter",
+		    __entry->runner_vcpu, __entry->n_runnable, __entry->tgid)
+);
+
+TRACE_EVENT(kvmppc_vcore_blocked,
+	TP_PROTO(struct kvmppc_vcore *vc, int where),
+
+	TP_ARGS(vc, where),
+
+	TP_STRUCT__entry(
+		__field(int,	n_runnable)
+		__field(int,	runner_vcpu)
+		__field(int,	where)
+		__field(pid_t,	tgid)
+	),
+
+	TP_fast_assign(
+		__entry->runner_vcpu = vc->runner->vcpu_id;
+		__entry->n_runnable  = vc->n_runnable;
+		__entry->where       = where;
+		__entry->tgid	     = current->tgid;
+	),
+
+	TP_printk("%s runner_vcpu=%d runnable=%d tgid=%d",
+		   __entry->where ? "Exit" : "Enter",
+		   __entry->runner_vcpu, __entry->n_runnable, __entry->tgid)
+);
+
+TRACE_EVENT(kvmppc_run_vcpu_enter,
+	TP_PROTO(struct kvm_vcpu *vcpu),
+
+	TP_ARGS(vcpu),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(pid_t,		tgid)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->tgid	  = current->tgid;
+	),
+
+	TP_printk("VCPU %d: tgid=%d", __entry->vcpu_id, __entry->tgid)
+);
+
+TRACE_EVENT(kvmppc_run_vcpu_exit,
+	TP_PROTO(struct kvm_vcpu *vcpu, struct kvm_run *run),
+
+	TP_ARGS(vcpu, run),
+
+	TP_STRUCT__entry(
+		__field(int,		vcpu_id)
+		__field(int,		exit)
+		__field(int,		ret)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id  = vcpu->vcpu_id;
+		__entry->exit     = run->exit_reason;
+		__entry->ret      = vcpu->arch.ret;
+	),
+
+	TP_printk("VCPU %d: exit=%d, ret=%d",
+			__entry->vcpu_id, __entry->exit, __entry->ret)
+);
+
+#endif /* _TRACE_KVM_HV_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
1.8.3.4