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| author | Avi Kivity <avi@redhat.com> | 2010-01-21 15:31:45 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:36:03 -0300 |
| commit | 2608d7a12fd4badfe2eac534150f0715a7fd3ff3 (patch) | |
| tree | 98cccb92487d023e9519f323c91c090a43367510 | |
| parent | ab344828ebe729e52949d64046adaa196f6b9dbe (diff) | |
| download | op-kernel-dev-2608d7a12fd4badfe2eac534150f0715a7fd3ff3.zip op-kernel-dev-2608d7a12fd4badfe2eac534150f0715a7fd3ff3.tar.gz | |
KVM: Allow kvm_load_guest_fpu() even when !vcpu->fpu_active
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>
| -rw-r--r-- | 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; |
