diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-05-20 11:46:12 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-05-20 12:31:37 +0200 |
| commit | a9b4fb7e79e7624c97c55e9c7562e3fe866ce70f (patch) | |
| tree | f690b927077f73993bc7e01c10fc47cce0460b85 /arch/x86/kvm/x86.c | |
| parent | ed3cf15271fa150320b46f03d369777b71786298 (diff) | |
| parent | c447e76b4cabb49ddae8e49c5758f031f35d55fb (diff) | |
Merge branch 'kvm-master' into kvm-next
Grab MPX bugfix, and fix conflicts against Rik's adaptive FPU
deactivation patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 457b908244f2..d42d8ace90f1 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6282,6 +6282,8 @@ void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu) return; page = gfn_to_page(vcpu->kvm, APIC_DEFAULT_PHYS_BASE >> PAGE_SHIFT); + if (is_error_page(page)) + return; kvm_x86_ops->set_apic_access_page_addr(vcpu, page_to_phys(page)); /* @@ -7155,7 +7157,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) * 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->arch.eager_fpu) { if (++vcpu->fpu_counter < 5) kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu); } @@ -7174,11 +7176,21 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) { + struct kvm_vcpu *vcpu; + if (check_tsc_unstable() && atomic_read(&kvm->online_vcpus) != 0) printk_once(KERN_WARNING "kvm: SMP vm created on host with unstable TSC; " "guest TSC will not be reliable\n"); - return kvm_x86_ops->vcpu_create(kvm, id); + + vcpu = kvm_x86_ops->vcpu_create(kvm, id); + + /* + * Activate fpu unconditionally in case the guest needs eager FPU. It will be + * deactivated soon if it doesn't. + */ + kvm_x86_ops->fpu_activate(vcpu); + return vcpu; } int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) |