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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:56:45 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:26 +0100 |
| commit | 8721f5b061eb18c4bb3b77be3ec1c2811ca574ba (patch) | |
| tree | 2e0363a7d843b6fd48b2ae8441cbeacc65620d7d /arch/x86/kvm/svm.c | |
| parent | b3d895d5c4154156894fd1df2158d82f94fb5527 (diff) | |
| download | linux-8721f5b061eb18c4bb3b77be3ec1c2811ca574ba.tar.bz2 | |
KVM: x86: Add a helper to check kernel support when setting cpu cap
Add a helper, kvm_cpu_cap_check_and_set(), to query boot_cpu_has() as
part of setting a KVM cpu capability. VMX in particular has a number of
features that are dependent on both a VMCS capability and kernel
support.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 30e1745c04a1..997a471d4704 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1377,8 +1377,7 @@ static __init void svm_set_cpu_caps(void) /* CPUID 0x8000000A */ /* Support next_rip if host supports it */ - if (boot_cpu_has(X86_FEATURE_NRIPS)) - kvm_cpu_cap_set(X86_FEATURE_NRIPS); + kvm_cpu_cap_check_and_set(X86_FEATURE_NRIPS); if (npt_enabled) kvm_cpu_cap_set(X86_FEATURE_NPT); |