diff options
| author | Maxim Levitsky <mlevitsk@redhat.com> | 2024-09-10 16:03:49 -0400 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-12-18 15:14:49 -0800 |
| commit | 0e77b324110c9c1e240a67cc35fa1355f8f3f57c (patch) | |
| tree | 599fc85d25a94f2767e3b33d60649d5ab686b18d | |
| parent | 3e633e7e7d0725b483aee843cbdce22bc9cd1707 (diff) | |
KVM: x86: Add information about pending requests to kvm_exit tracepoint
Print pending requests in the kvm_exit tracepoint, which allows userspace
to gather information on how often KVM interrupts vCPUs due to specific
requests.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20240910200350.264245-3-mlevitsk@redhat.com
[sean: massage changelog]
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/trace.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index c2edf4a36fad..0b844cb97978 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -315,12 +315,14 @@ TRACE_EVENT(name, \ __field( u32, intr_info ) \ __field( u32, error_code ) \ __field( unsigned int, vcpu_id ) \ + __field( u64, requests ) \ ), \ \ TP_fast_assign( \ __entry->guest_rip = kvm_rip_read(vcpu); \ __entry->isa = isa; \ __entry->vcpu_id = vcpu->vcpu_id; \ + __entry->requests = READ_ONCE(vcpu->requests); \ kvm_x86_call(get_exit_info)(vcpu, \ &__entry->exit_reason, \ &__entry->info1, \ @@ -330,11 +332,13 @@ TRACE_EVENT(name, \ ), \ \ TP_printk("vcpu %u reason %s%s%s rip 0x%lx info1 0x%016llx " \ - "info2 0x%016llx intr_info 0x%08x error_code 0x%08x", \ + "info2 0x%016llx intr_info 0x%08x error_code 0x%08x " \ + "requests 0x%016llx", \ __entry->vcpu_id, \ kvm_print_exit_reason(__entry->exit_reason, __entry->isa), \ __entry->guest_rip, __entry->info1, __entry->info2, \ - __entry->intr_info, __entry->error_code) \ + __entry->intr_info, __entry->error_code, \ + __entry->requests) \ ) /* |