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| author | Avi Kivity | 2007-11-20 14:30:24 +0100 |
|---|---|---|
| committer | Avi Kivity | 2008-01-30 16:53:09 +0100 |
| commit | 26e5215fdc6cf7b5a8b1269134095abbb7338b3c (patch) | |
| tree | d5a326a910996549827a11beb3af1c60f1f1cf3c /drivers/kvm/x86.c | |
| parent | KVM: Portability: Split kvm_set_memory_region() to have an arch callout (diff) | |
| download | kernel-qcow2-linux-26e5215fdc6cf7b5a8b1269134095abbb7338b3c.tar.gz kernel-qcow2-linux-26e5215fdc6cf7b5a8b1269134095abbb7338b3c.tar.xz kernel-qcow2-linux-26e5215fdc6cf7b5a8b1269134095abbb7338b3c.zip | |
KVM: Split vcpu creation to avoid vcpu_load() before preemption setup
Split kvm_arch_vcpu_create() into kvm_arch_vcpu_create() and
kvm_arch_vcpu_setup(), enabling preemption notification between the two.
This mean that we can now do vcpu_load() within kvm_arch_vcpu_setup().
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/x86.c')
| -rw-r--r-- | drivers/kvm/x86.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c index 6abb2ed1a908..b482b6a8a828 100644 --- a/drivers/kvm/x86.c +++ b/drivers/kvm/x86.c @@ -2478,13 +2478,12 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) { - int r; - struct kvm_vcpu *vcpu = kvm_x86_ops->vcpu_create(kvm, id); + return kvm_x86_ops->vcpu_create(kvm, id); +} - if (IS_ERR(vcpu)) { - r = -ENOMEM; - goto fail; - } +int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) +{ + int r; /* We do fxsave: this must be aligned. */ BUG_ON((unsigned long)&vcpu->host_fx_image & 0xF); @@ -2497,11 +2496,10 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, if (r < 0) goto free_vcpu; - return vcpu; + return 0; free_vcpu: kvm_x86_ops->vcpu_free(vcpu); -fail: - return ERR_PTR(r); + return r; } void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) |