From: Peter Xu <peterx@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Wanpeng Li <kernellwp@gmail.com>,
Krish Sadhukhan <krish.sadhukhan@oracle.com>,
peterx@redhat.com
Subject: [PATCH v4 1/4] KVM: X86: Trace vcpu_id for vmexit
Date: Fri, 6 Sep 2019 10:17:19 +0800 [thread overview]
Message-ID: <20190906021722.2095-2-peterx@redhat.com> (raw)
In-Reply-To: <20190906021722.2095-1-peterx@redhat.com>
Tracing the ID helps to pair vmenters and vmexits for guests with
multiple vCPUs.
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
arch/x86/kvm/trace.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index b5c831e79094..20d6cac9f157 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -232,17 +232,20 @@ TRACE_EVENT(kvm_exit,
__field( u32, isa )
__field( u64, info1 )
__field( u64, info2 )
+ __field( unsigned int, vcpu_id )
),
TP_fast_assign(
__entry->exit_reason = exit_reason;
__entry->guest_rip = kvm_rip_read(vcpu);
__entry->isa = isa;
+ __entry->vcpu_id = vcpu->vcpu_id;
kvm_x86_ops->get_exit_info(vcpu, &__entry->info1,
&__entry->info2);
),
- TP_printk("reason %s rip 0x%lx info %llx %llx",
+ TP_printk("vcpu %u reason %s rip 0x%lx info %llx %llx",
+ __entry->vcpu_id,
(__entry->isa == KVM_ISA_VMX) ?
__print_symbolic(__entry->exit_reason, VMX_EXIT_REASONS) :
__print_symbolic(__entry->exit_reason, SVM_EXIT_REASONS),
--
2.21.0
next prev parent reply other threads:[~2019-09-06 2:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-06 2:17 [PATCH v4 0/4] KVM: X86: Some tracepoint enhancements Peter Xu
2019-09-06 2:17 ` Peter Xu [this message]
2019-09-06 2:17 ` [PATCH v4 2/4] KVM: X86: Remove tailing newline for tracepoints Peter Xu
2019-09-06 2:17 ` [PATCH v4 3/4] KVM: VMX: Change ple_window type to unsigned int Peter Xu
2019-09-06 14:22 ` Sean Christopherson
2019-09-06 2:17 ` [PATCH v4 4/4] KVM: X86: Tune PLE Window tracepoint Peter Xu
2019-09-06 14:23 ` Sean Christopherson
2019-09-10 17:05 ` [PATCH v4 0/4] KVM: X86: Some tracepoint enhancements Paolo Bonzini
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