diff options
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 59c2d6f1b131..6f5f465fdb6b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5097,11 +5097,6 @@ static void emulator_get_fpu(struct x86_emulate_ctxt *ctxt) { preempt_disable(); kvm_load_guest_fpu(emul_to_vcpu(ctxt)); - /* - * CR0.TS may reference the host fpu state, not the guest fpu state, - * so it may be clear at this point. - */ - clts(); } static void emulator_put_fpu(struct x86_emulate_ctxt *ctxt) @@ -7423,25 +7418,13 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) { - if (!vcpu->guest_fpu_loaded) { - vcpu->fpu_counter = 0; + if (!vcpu->guest_fpu_loaded) return; - } vcpu->guest_fpu_loaded = 0; copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu); __kernel_fpu_end(); ++vcpu->stat.fpu_reload; - /* - * If using eager FPU mode, or if the guest is a frequent user - * of the FPU, just leave the FPU active for next time. - * Every 255 times fpu_counter rolls over to 0; a guest that uses - * the FPU in bursts will revert to loading it on demand. - */ - if (!use_eager_fpu()) { - if (++vcpu->fpu_counter < 5) - kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu); - } trace_kvm_fpu(0); } |