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| author | Sean Christopherson <seanjc@google.com> | 2024-01-10 02:27:00 +0100 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-02-23 01:22:36 +0100 |
| commit | 9c9025ea003a03f967affd690f39b4ef3452c0f5 (patch) | |
| tree | d635ad8fce371040e9661b60207b876700bd6a6a /arch/x86/kvm/vmx/vmx.c | |
| parent | KVM: x86: Open code all direct reads to guest DR6 and DR7 (diff) | |
| download | linux-9c9025ea003a03f967affd690f39b4ef3452c0f5.tar.xz linux-9c9025ea003a03f967affd690f39b4ef3452c0f5.zip | |
KVM: x86: Plumb "force_immediate_exit" into kvm_entry() tracepoint
Annotate the kvm_entry() tracepoint with "immediate exit" when KVM is
forcing a VM-Exit immediately after VM-Enter, e.g. when KVM wants to
inject an event but needs to first complete some other operation.
Knowing that KVM is (or isn't) forcing an exit is useful information when
debugging issues related to event injection.
Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20240110012705.506918-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index aa47433d0c9b..e3653d11f001 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7265,7 +7265,7 @@ out: guest_state_exit_irqoff(); } -static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) +static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) { struct vcpu_vmx *vmx = to_vmx(vcpu); unsigned long cr3, cr4; @@ -7292,7 +7292,7 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) return EXIT_FASTPATH_NONE; } - trace_kvm_entry(vcpu); + trace_kvm_entry(vcpu, force_immediate_exit); if (vmx->ple_window_dirty) { vmx->ple_window_dirty = false; |