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authorAvi Kivity <avi@redhat.com>2010-05-13 12:35:17 +0300
committerAvi Kivity <avi@redhat.com>2010-08-01 10:35:48 +0300
commit93736624635235cc5372ffca6d62816d02170724 (patch)
tree801205636b4d6da4127a6d33873902d690431f52
parent19483d144023f7f4817dedafe26d5fe9ff2e7087 (diff)
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KVM: Consolidate arch specific vcpu ioctl locking
Now that all arch specific ioctls have centralized locking, it is easy to move it to the central dispatcher. Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/powerpc/kvm/powerpc.c11
-rw-r--r--arch/s390/kvm/kvm-s390.c13
-rw-r--r--arch/x86/kvm/x86.c2
-rw-r--r--virt/kvm/kvm_main.c2
4 files changed, 10 insertions, 18 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index caeed7b31bf..a1d87508892 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -512,17 +512,16 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
void __user *argp = (void __user *)arg;
long r;
- if (ioctl == KVM_INTERRUPT) {
+ switch (ioctl) {
+ case KVM_INTERRUPT: {
struct kvm_interrupt irq;
r = -EFAULT;
if (copy_from_user(&irq, argp, sizeof(irq)))
- goto out_nolock;
+ goto out;
r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
- goto out_nolock;
+ goto out;
}
- vcpu_load(vcpu);
- switch (ioctl) {
case KVM_ENABLE_CAP:
{
struct kvm_enable_cap cap;
@@ -537,8 +536,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
}
out:
- vcpu_put(vcpu);
-out_nolock:
return r;
}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index fd169f658bf..0cb0da7822d 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -638,16 +638,16 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
void __user *argp = (void __user *)arg;
long r;
- if (ioctl == KVM_S390_INTERRUPT) {
+ switch (ioctl) {
+ case KVM_S390_INTERRUPT: {
struct kvm_s390_interrupt s390int;
+ r = -EFAULT;
if (copy_from_user(&s390int, argp, sizeof(s390int)))
- return -EFAULT;
- return kvm_s390_inject_vcpu(vcpu, &s390int);
+ break;
+ r = kvm_s390_inject_vcpu(vcpu, &s390int);
+ break;
}
-
- vcpu_load(vcpu);
- switch (ioctl) {
case KVM_S390_STORE_STATUS:
r = kvm_s390_vcpu_store_status(vcpu, arg);
break;
@@ -666,7 +666,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
default:
r = -EINVAL;
}
- vcpu_put(vcpu);
return r;
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 999b017011f..4c2096f30d9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2298,7 +2298,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
int r;
struct kvm_lapic_state *lapic = NULL;
- vcpu_load(vcpu);
switch (ioctl) {
case KVM_GET_LAPIC: {
r = -EINVAL;
@@ -2496,7 +2495,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
r = -EINVAL;
}
out:
- vcpu_put(vcpu);
kfree(lapic);
return r;
}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index e0fb0988a3f..35532c96471 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1578,9 +1578,7 @@ out_free2:
break;
}
default:
- vcpu_put(vcpu);
r = kvm_arch_vcpu_ioctl(filp, ioctl, arg);
- vcpu_load(vcpu);
}
out:
vcpu_put(vcpu);