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KVM: PPC: PR: Use generic tracepoint for guest exit 

We want to have tracing information on guest exits for booke as well
as book3s. Since most information is identical, use a common trace point.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2012-08-02 15:10:00 +02:00
parent 8e525d59d0
commit 97c9505984
3 changed files with 55 additions and 29 deletions
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2
arch/powerpc/kvm/book3s_pr.c
View File

@ -549,7 +549,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* We get here with MSR.EE=0, so enable it to be a nice citizen */
__hard_irq_enable();
trace_kvm_book3s_exit(exit_nr, vcpu);
trace_kvm_exit(exit_nr, vcpu);
preempt_enable();
kvm_resched(vcpu);
switch (exit_nr) {

3
arch/powerpc/kvm/booke.c
View File

@ -39,6 +39,7 @@
#include "timing.h"
#include "booke.h"
#include "trace.h"
unsigned long kvmppc_booke_handlers;
@ -677,6 +678,8 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
local_irq_enable();
trace_kvm_exit(exit_nr, vcpu);
run->exit_reason = KVM_EXIT_UNKNOWN;
run->ready_for_interrupt_injection = 1;

79
arch/powerpc/kvm/trace.h
View File

@ -31,6 +31,57 @@ TRACE_EVENT(kvm_ppc_instr,
__entry->inst, __entry->pc, __entry->emulate)
);
TRACE_EVENT(kvm_exit,
TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
TP_ARGS(exit_nr, vcpu),
TP_STRUCT__entry(
__field( unsigned int, exit_nr )
__field( unsigned long, pc )
__field( unsigned long, msr )
__field( unsigned long, dar )
#ifdef CONFIG_KVM_BOOK3S_PR
__field( unsigned long, srr1 )
#endif
__field( unsigned long, last_inst )
),
TP_fast_assign(
#ifdef CONFIG_KVM_BOOK3S_PR
struct kvmppc_book3s_shadow_vcpu *svcpu;
#endif
__entry->exit_nr = exit_nr;
__entry->pc = kvmppc_get_pc(vcpu);
__entry->dar = kvmppc_get_fault_dar(vcpu);
__entry->msr = vcpu->arch.shared->msr;
#ifdef CONFIG_KVM_BOOK3S_PR
svcpu = svcpu_get(vcpu);
__entry->srr1 = svcpu->shadow_srr1;
svcpu_put(svcpu);
#endif
__entry->last_inst = vcpu->arch.last_inst;
),
TP_printk("exit=0x%x"
" | pc=0x%lx"
" | msr=0x%lx"
" | dar=0x%lx"
#ifdef CONFIG_KVM_BOOK3S_PR
" | srr1=0x%lx"
#endif
" | last_inst=0x%lx"
,
__entry->exit_nr,
__entry->pc,
__entry->msr,
__entry->dar,
#ifdef CONFIG_KVM_BOOK3S_PR
__entry->srr1,
#endif
__entry->last_inst
)
);
TRACE_EVENT(kvm_stlb_inval,
TP_PROTO(unsigned int stlb_index),
TP_ARGS(stlb_index),
@ -105,34 +156,6 @@ TRACE_EVENT(kvm_gtlb_write,
#ifdef CONFIG_KVM_BOOK3S_PR
TRACE_EVENT(kvm_book3s_exit,
TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
TP_ARGS(exit_nr, vcpu),
TP_STRUCT__entry(
__field( unsigned int, exit_nr )
__field( unsigned long, pc )
__field( unsigned long, msr )
__field( unsigned long, dar )
__field( unsigned long, srr1 )
),
TP_fast_assign(
struct kvmppc_book3s_shadow_vcpu *svcpu;
__entry->exit_nr = exit_nr;
__entry->pc = kvmppc_get_pc(vcpu);
__entry->dar = kvmppc_get_fault_dar(vcpu);
__entry->msr = vcpu->arch.shared->msr;
svcpu = svcpu_get(vcpu);
__entry->srr1 = svcpu->shadow_srr1;
svcpu_put(svcpu);
),
TP_printk("exit=0x%x | pc=0x%lx | msr=0x%lx | dar=0x%lx | srr1=0x%lx",
__entry->exit_nr, __entry->pc, __entry->msr, __entry->dar,
__entry->srr1)
);
TRACE_EVENT(kvm_book3s_reenter,
TP_PROTO(int r, struct kvm_vcpu *vcpu),
TP_ARGS(r, vcpu),