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KVM: x86: remove code for lazy FPU handling

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The FPU is always active now when running KVM.

Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2017-02-03 21:18:52 -08:00
parent 460df4c1fc
commit bd7e5b0899
6 changed files with 19 additions and 149 deletions
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7
arch/x86/kvm/x86.c
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@@ -6751,10 +6751,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
r = 0;
goto out;
}
if (kvm_check_request(KVM_REQ_DEACTIVATE_FPU, vcpu)) {
vcpu->fpu_active = 0;
kvm_x86_ops->fpu_deactivate(vcpu);
}
if (kvm_check_request(KVM_REQ_APF_HALT, vcpu)) {
/* Page is swapped out. Do synthetic halt */
vcpu->arch.apf.halted = true;
@@ -6856,8 +6852,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
preempt_disable();
kvm_x86_ops->prepare_guest_switch(vcpu);
if (vcpu->fpu_active)
kvm_load_guest_fpu(vcpu);
kvm_load_guest_fpu(vcpu);
/*
* Disable IRQs before setting IN_GUEST_MODE. Posted interrupt