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| author | Sean Christopherson <seanjc@google.com> | 2023-03-10 16:45:59 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-06 14:57:22 -0700 |
| commit | fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c (patch) | |
| tree | 3e9367e61a94a0f0dc974268470f9b914862c0c1 /arch/x86/kvm/x86.h | |
| parent | b1932c5c19ddcbe9140b0583a0931b620c21ca02 (diff) | |
| download | linux-stable-fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c.tar.gz linux-stable-fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c.tar.bz2 linux-stable-fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c.zip | |
KVM: x86: Add a helper to query whether or not a vCPU has ever run
Add a helper to query if a vCPU has run so that KVM doesn't have to open
code the check on last_vmentry_cpu being set to a magic value.
No functional change intended.
Suggested-by: Xiaoyao Li <xiaoyao.li@intel.com>
Cc: Like Xu <like.xu.linux@gmail.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20230311004618.920745-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index a8167b47b8c8..754190af1791 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -83,6 +83,11 @@ static inline unsigned int __shrink_ple_window(unsigned int val, void kvm_service_local_tlb_flush_requests(struct kvm_vcpu *vcpu); int kvm_check_nested_events(struct kvm_vcpu *vcpu); +static inline bool kvm_vcpu_has_run(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.last_vmentry_cpu != -1; +} + static inline bool kvm_is_exception_pending(struct kvm_vcpu *vcpu) { return vcpu->arch.exception.pending || |