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authorSean Christopherson <sean.j.christopherson@intel.com>2020-03-02 15:56:24 -0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-03-16 17:58:10 +0100
commit7f5581f592984901620d34aa86a730092ae65092 (patch)
tree28987ddd60947b39ac8a7ee493850e2ac90ad6e9 /arch/x86/include
parentcfc481810c903a5f74e5c7bf50ca8e28318dbc44 (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/include')
-rw-r--r--arch/x86/include/asm/kvm_host.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 6ac67b6d6692..f817ddf876b5 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1177,7 +1177,7 @@ struct kvm_x86_ops {
struct x86_exception *exception);
void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu,
enum exit_fastpath_completion *exit_fastpath);
- bool (*mpx_supported)(void);
+
bool (*xsaves_supported)(void);
bool (*umip_emulated)(void);
bool (*pt_supported)(void);

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