[PATCH 3/4] KVM: x86: add more information to kvm_exit tracepoint
From: Maxim Levitsky
Date: Wed Aug 30 2023 - 14:35:53 EST
Add:
- Flag that shows that the VM is in guest mode
- Bitmap of pending kvm requests.
- Flag showing that this VM exit is due to request to have
an immediate VM exit.
Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
---
arch/x86/kvm/trace.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index f4c56f59f5c11b..0657a3a348b4ae 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -320,12 +320,18 @@ TRACE_EVENT(name, \
__field( u32, intr_info ) \
__field( u32, error_code ) \
__field( unsigned int, vcpu_id ) \
+ __field( bool, guest_mode ) \
+ __field( u64, requests ) \
+ __field( bool, req_imm_exit ) \
), \
\
TP_fast_assign( \
__entry->guest_rip = kvm_rip_read(vcpu); \
__entry->isa = isa; \
__entry->vcpu_id = vcpu->vcpu_id; \
+ __entry->guest_mode = is_guest_mode(vcpu); \
+ __entry->requests = READ_ONCE(vcpu->requests); \
+ __entry->req_imm_exit = vcpu->arch.req_immediate_exit; \
static_call(kvm_x86_get_exit_info)(vcpu, \
&__entry->exit_reason, \
&__entry->info1, \
@@ -335,11 +341,15 @@ 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%s%s", \
__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, \
+ __entry->guest_mode ? " [guest]" : "", \
+ __entry->req_imm_exit ? " [imm exit]" : "") \
)
/*
--
2.26.3