diff options
| author | Sean Christopherson <seanjc@google.com> | 2023-03-11 03:45:59 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-07 00:57:22 +0300 |
| commit | fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c (patch) | |
| tree | 3e9367e61a94a0f0dc974268470f9b914862c0c1 /arch/x86/kvm/cpuid.c | |
| parent | b1932c5c19ddcbe9140b0583a0931b620c21ca02 (diff) | |
| download | linux-fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c.tar.xz | |
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/cpuid.c')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 9583a110cf5f..b736ddb42088 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -420,7 +420,7 @@ static int kvm_set_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid_entry2 *e2, * KVM_SET_CPUID{,2} again. To support this legacy behavior, check * whether the supplied CPUID data is equal to what's already set. */ - if (vcpu->arch.last_vmentry_cpu != -1) { + if (kvm_vcpu_has_run(vcpu)) { r = kvm_cpuid_check_equal(vcpu, e2, nent); if (r) return r; |