KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_mpstate

Move vcpu_load() and vcpu_put() into the architecture specific
implementations of kvm_arch_vcpu_ioctl_get_mpstate().

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d27a1dd0986b917543aa46c055fbab16cabbd3f1..4297f5094a884682bdcf898530ea95e2c803ae9f 100644 (file)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2833,9 +2833,16 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                    struct kvm_mp_state *mp_state)
 {
+       int ret;
+
+       vcpu_load(vcpu);
+
        /* CHECK_STOP and LOAD are not supported yet */
-       return is_vcpu_stopped(vcpu) ? KVM_MP_STATE_STOPPED :
-                                      KVM_MP_STATE_OPERATING;
+       ret = is_vcpu_stopped(vcpu) ? KVM_MP_STATE_STOPPED :
+                                     KVM_MP_STATE_OPERATING;
+
+       vcpu_put(vcpu);
+       return ret;
 }
 
 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f01a7d73dad784ea3e6786831596dec4d888d72a..80791939065fbf727aac0ccce0ddf21b3285ba00 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7465,6 +7465,8 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                    struct kvm_mp_state *mp_state)
 {
+       vcpu_load(vcpu);
+
        kvm_apic_accept_events(vcpu);
        if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED &&
                                        vcpu->arch.pv.pv_unhalted)
@@ -7472,6 +7474,7 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
        else
                mp_state->mp_state = vcpu->arch.mp_state;
 
+       vcpu_put(vcpu);
        return 0;
 }
 

diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index a1b2e8a43ca0b7d9b3a10e968d0d028968335fc8..65d50100ba3ca57c8bcf3e0a19c87bc263ccfe99 100644 (file)
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -381,11 +381,14 @@ static void vcpu_power_off(struct kvm_vcpu *vcpu)
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                    struct kvm_mp_state *mp_state)
 {
+       vcpu_load(vcpu);
+
        if (vcpu->arch.power_off)
                mp_state->mp_state = KVM_MP_STATE_STOPPED;
        else
                mp_state->mp_state = KVM_MP_STATE_RUNNABLE;
 
+       vcpu_put(vcpu);
        return 0;
 }
 

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index e04a216bcd14984df9cb1f1cc2879f4c89300beb..8e2f582417c38d6a570fa37e948ff5c44c1abd4d 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2634,9 +2634,7 @@ out_free1:
        case KVM_GET_MP_STATE: {
                struct kvm_mp_state mp_state;
 
-               vcpu_load(vcpu);
                r = kvm_arch_vcpu_ioctl_get_mpstate(vcpu, &mp_state);
-               vcpu_put(vcpu);
                if (r)
                        goto out;
                r = -EFAULT;