diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-03 02:56:24 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 19:58:10 +0300 |
| commit | 7f5581f592984901620d34aa86a730092ae65092 (patch) | |
| tree | 28987ddd60947b39ac8a7ee493850e2ac90ad6e9 /arch/x86/kvm/svm.c | |
| parent | cfc481810c903a5f74e5c7bf50ca8e28318dbc44 (diff) | |
| download | linux-7f5581f592984901620d34aa86a730092ae65092.tar.xz | |
KVM: x86: Use supported_xcr0 to detect MPX support
Query supported_xcr0 when checking for MPX support instead of invoking
->mpx_supported() and drop ->mpx_supported() as kvm_mpx_supported() was
its last user. Rename vmx_mpx_supported() to cpu_has_vmx_mpx() to
better align with VMX/VMCS nomenclature.
Modify VMX's adjustment of xcr0 to call cpus_has_vmx_mpx() (renamed from
vmx_mpx_supported()) directly to avoid reading supported_xcr0 before
it's fully configured.
No functional change intended.
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
[Test that *all* bits are set. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 5ba2ef1b4577..7521f72b1067 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -6081,11 +6081,6 @@ static bool svm_invpcid_supported(void) return false; } -static bool svm_mpx_supported(void) -{ - return false; -} - static bool svm_xsaves_supported(void) { return boot_cpu_has(X86_FEATURE_XSAVES); @@ -7469,7 +7464,6 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .rdtscp_supported = svm_rdtscp_supported, .invpcid_supported = svm_invpcid_supported, - .mpx_supported = svm_mpx_supported, .xsaves_supported = svm_xsaves_supported, .umip_emulated = svm_umip_emulated, .pt_supported = svm_pt_supported, |