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authorXiaoyao Li <xiaoyao.li@intel.com>2020-04-29 23:43:12 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-05-15 12:26:10 -0400
commita71936ab46f1da1539d97a98dfb2f94ee383d687 (patch)
treea7a25e24ddcaafa7e47af14cae0bce7f0bb1648b
parent68cda40d9f3c4cb880108eb22f974d9e3d5dc6c5 (diff)
downloadlinux-a71936ab46f1da1539d97a98dfb2f94ee383d687.tar.bz2
kvm: x86: Cleanup vcpu->arch.guest_xstate_size
vcpu->arch.guest_xstate_size lost its only user since commit df1daba7d1cb ("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>
-rw-r--r--arch/x86/include/asm/kvm_host.h1
-rw-r--r--arch/x86/kvm/cpuid.c4
-rw-r--r--arch/x86/kvm/x86.c2
3 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 505cf19ace80..86295a01f5ca 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -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;
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 44dfaefdad0e..cd708b0b460a 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -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);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3622586a26a7..6b958d6c9427 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -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;