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KVM: x86: Move XSAVES CPUID adjust to VMX's KVM cpu cap update

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Move the clearing of the XSAVES CPUID bit into VMX, which has a separate
VMCS control to enable XSAVES in non-root, to eliminate the last ugly
renmant of the undesirable "unsigned f_* = *_supported ? F(*) : 0"
pattern in the common CPUID handling code.

Drop ->xsaves_supported(), CPUID adjustment was the only user.

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>
This commit is contained in:
Sean Christopherson
2020-03-02 15:56:44 -08:00
committed by Paolo Bonzini
parent 3ec6fd8cf0
commit b3d895d5c4
4 changed files with 4 additions and 12 deletions
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4
arch/x86/kvm/cpuid.c
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@@ -629,10 +629,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function)
goto out;
cpuid_entry_mask(entry, CPUID_D_1_EAX);
if (!kvm_x86_ops->xsaves_supported())
cpuid_entry_clear(entry, X86_FEATURE_XSAVES);
if (entry->eax & (F(XSAVES)|F(XSAVEC)))
entry->ebx = xstate_required_size(supported_xcr0, true);
else