diff options
author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:56:24 -0800 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:10 +0100 |
commit | 7f5581f592984901620d34aa86a730092ae65092 (patch) | |
tree | 28987ddd60947b39ac8a7ee493850e2ac90ad6e9 /arch/x86/kvm/vmx/capabilities.h | |
parent | cfc481810c903a5f74e5c7bf50ca8e28318dbc44 (diff) |
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/vmx/capabilities.h')
-rw-r--r-- | arch/x86/kvm/vmx/capabilities.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h index 80eec8cffbe2..c00e26570198 100644 --- a/arch/x86/kvm/vmx/capabilities.h +++ b/arch/x86/kvm/vmx/capabilities.h @@ -101,7 +101,7 @@ static inline bool cpu_has_load_perf_global_ctrl(void) (vmcs_config.vmexit_ctrl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL); } -static inline bool vmx_mpx_supported(void) +static inline bool cpu_has_vmx_mpx(void) { return (vmcs_config.vmexit_ctrl & VM_EXIT_CLEAR_BNDCFGS) && (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_BNDCFGS); |