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kvm: x86: Cleanup vcpu->arch.guest_xstate_size

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vcpu->arch.guest_xstate_size lost its only user since commit df1daba7d1
("KVM: x86: support XSAVES usage in the host"), so clean it up.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200429154312.1411-1-xiaoyao.li@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li 2020-04-29 23:43:12 +08:00 committed by Paolo Bonzini
parent 68cda40d9f
commit a71936ab46
3 changed files with 1 additions and 6 deletions
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1
arch/x86/include/asm/kvm_host.h
View File

@ -657,7 +657,6 @@ struct kvm_vcpu_arch {
u64 xcr0;
u64 guest_supported_xcr0;
u32 guest_xstate_size;
struct kvm_pio_request pio;
void *pio_data;

4
arch/x86/kvm/cpuid.c
View File

@ -86,12 +86,10 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
best = kvm_find_cpuid_entry(vcpu, 0xD, 0);
if (!best) {
vcpu->arch.guest_supported_xcr0 = 0;
vcpu->arch.guest_xstate_size = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
} else {
vcpu->arch.guest_supported_xcr0 =
(best->eax | ((u64)best->edx << 32)) & supported_xcr0;
vcpu->arch.guest_xstate_size = best->ebx =
xstate_required_size(vcpu->arch.xcr0, false);
best->ebx = xstate_required_size(vcpu->arch.xcr0, false);
}
best = kvm_find_cpuid_entry(vcpu, 0xD, 1);

2
arch/x86/kvm/x86.c
View File

@ -9387,8 +9387,6 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
}
fx_init(vcpu);
vcpu->arch.guest_xstate_size = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
vcpu->arch.pat = MSR_IA32_CR_PAT_DEFAULT;