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KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch 

It is now equal to use_eager_fpu(), which simply tests a cpufeature bit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-03-08 10:00:11 +01:00
parent a87036add0
commit 5a5fbdc0e3
3 changed files with 2 additions and 4 deletions
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1
arch/x86/include/asm/kvm_host.h
View File

@ -503,7 +503,6 @@ struct kvm_vcpu_arch {
struct kvm_mmu_memory_cache mmu_page_header_cache; struct kvm_mmu_memory_cache mmu_page_header_cache;
struct fpu guest_fpu; struct fpu guest_fpu;
bool eager_fpu;
u64 xcr0; u64 xcr0;
u64 guest_supported_xcr0; u64 guest_supported_xcr0;
u32 guest_xstate_size; u32 guest_xstate_size;

3
arch/x86/kvm/cpuid.c
View File

@ -104,8 +104,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
if (best && (best->eax & (F(XSAVES) | F(XSAVEC)))) if (best && (best->eax & (F(XSAVES) | F(XSAVEC))))
best->ebx = xstate_required_size(vcpu->arch.xcr0, true); best->ebx = xstate_required_size(vcpu->arch.xcr0, true);
vcpu->arch.eager_fpu = use_eager_fpu(); if (use_eager_fpu())
if (vcpu->arch.eager_fpu)
kvm_x86_ops->fpu_activate(vcpu); kvm_x86_ops->fpu_activate(vcpu);
/* /*

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

@ -7329,7 +7329,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
* Every 255 times fpu_counter rolls over to 0; a guest that uses * Every 255 times fpu_counter rolls over to 0; a guest that uses
* the FPU in bursts will revert to loading it on demand. * the FPU in bursts will revert to loading it on demand.
*/ */
if (!vcpu->arch.eager_fpu) { if (!use_eager_fpu()) {
if (++vcpu->fpu_counter < 5) if (++vcpu->fpu_counter < 5)
kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu); kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu);
} }