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| author |   Radim Krčmář <rkrcmar@redhat.com> | 2014-08-21 18:08:05 +0200 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2014-08-21 18:45:21 +0200 |
| commit | e790d9ef6405633b007339d746b709aed43a928d (patch) | |
| tree | 27b3a05596ce329f299e481f301de21e75328704 | |
| parent | KVM: x86: Replace X86_FEATURE_NX offset with the definition (diff) | |
| download | linux-dev-e790d9ef6405633b007339d746b709aed43a928d.tar.xz linux-dev-e790d9ef6405633b007339d746b709aed43a928d.zip | |
KVM: add kvm_arch_sched_in
Introduce preempt notifiers for architecture specific code.
Advantage over creating a new notifier in every arch is slightly simpler
code and guaranteed call order with respect to kvm_sched_in.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/arm/kvm/arm.c | 4 | ||||
| -rw-r--r-- | arch/mips/kvm/mips.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 4 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 4 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 2 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 2 |
7 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index a99e0cdf8ba2..9f788ebac55b 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -288,6 +288,10 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) { } +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) +{ +} + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { vcpu->cpu = cpu; diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index cd7114147ae7..2362df2a79f9 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1002,6 +1002,10 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) { } +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) +{ +} + int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, struct kvm_translation *tr) { diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 4c79284b58be..cbc432f4f0a6 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -720,6 +720,10 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) kvmppc_subarch_vcpu_uninit(vcpu); } +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) +{ +} + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { #ifdef CONFIG_BOOKE diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ce81eb2ab76a..a3c324ec4370 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -555,6 +555,10 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) /* Nothing todo */ } +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) +{ +} + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { save_fp_ctl(&vcpu->arch.host_fpregs.fpc); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cd718c01cdf1..7d43dc7bb906 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7171,6 +7171,10 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) static_key_slow_dec(&kvm_no_apic_vcpu); } +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) +{ +} + int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) { if (type) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a4c33b34fe3f..ebd723676633 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -624,6 +624,8 @@ void kvm_arch_exit(void); int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); +void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu); + void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 39b16035386f..5a0817ee996e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3124,6 +3124,8 @@ static void kvm_sched_in(struct preempt_notifier *pn, int cpu) if (vcpu->preempted) vcpu->preempted = false; + kvm_arch_sched_in(vcpu, cpu); + kvm_arch_vcpu_load(vcpu, cpu); } |