On 11/14/2014 04:56 AM, Alexander Graf wrote:
>
>
>
>> Am 14.11.2014 um 00:29 schrieb Suresh E. Warrier <warrier@xxxxxxxxxxxxxxxxxx>:
>>
>> 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@xxxxxxxxx>
>> Signed-off-by: Suresh Warrier <warrier@xxxxxxxxxxxxxxxxxx>
>> ---
>> 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(¤t->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"}
>
> Can we share these with PR?
>
I could move these to a new file, say trace_kvm.h and have both trace_pr.h and
trace_hv.h include the file. Please confirm if that works for you. Or do you
have a better suggestion?
>> +
>> +#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"}
>
> I think we're better off using the defines here rather than hand written numbers.
>
Good point! Will do that. So, also for the other handwritten numbers below.
>> +
>> +#define kvm_trace_symbol_kvmret \
>> + {0, "RESUME_GUEST"}, \
>> + {1, "RESUME_GUEST_NV"}, \
>> + {2, "RESUME_HOST"}, \
>> + {3, "RESUME_HOST_NV"}
>
> Same here
>
>> +
>> +#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"}
>
> And here
>
> Overall, please check for every trace point whether we can share it with PR and/or booke :)
I did look at that when I was coding these, but the data we need in the trace points is
different.
Thanks for your suggestions!
-suresh
>
> Alex
>
>> +
>> +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
>>
>> --
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