Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 13/38] KVM: Allow kvm_load_guest_fpu() even when !vcpu->fpu_active | Date | Tue, 16 Feb 2010 12:35:11 +0200 |
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This allows accessing the guest fpu from the instruction emulator, as well as being symmetric with kvm_put_guest_fpu().
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> --- arch/x86/kvm/x86.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ce267d9..4cf4eac 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4239,7 +4239,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) preempt_disable(); kvm_x86_ops->prepare_guest_switch(vcpu); - kvm_load_guest_fpu(vcpu); + if (vcpu->fpu_active) + kvm_load_guest_fpu(vcpu); local_irq_disable(); @@ -5285,7 +5286,7 @@ EXPORT_SYMBOL_GPL(fx_init); void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) { - if (!vcpu->fpu_active || vcpu->guest_fpu_loaded) + if (vcpu->guest_fpu_loaded) return; vcpu->guest_fpu_loaded = 1; -- 1.6.5.3
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