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| author | Avi Kivity <avi@redhat.com> | 2010-04-28 15:39:01 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-19 11:36:29 +0300 |
| commit | 0ee75bead83da4791e5cbf659806c54d8ee40f12 (patch) | |
| tree | 3b3856aac1fc94d153f9e6c27f383f81be06185a /virt/kvm | |
| parent | 884a0ff0b68b3ece5987507de168215e14ef7849 (diff) | |
| download | lwn-0ee75bead83da4791e5cbf659806c54d8ee40f12.tar.gz lwn-0ee75bead83da4791e5cbf659806c54d8ee40f12.zip | |
KVM: Let vcpu structure alignment be determined at runtime
vmx and svm vcpus have different contents and therefore may have different
alignmment requirements. Let each specify its required alignment.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 9ab1a77941ef..f032806a212f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2178,7 +2178,7 @@ static void kvm_sched_out(struct preempt_notifier *pn, kvm_arch_vcpu_put(vcpu); } -int kvm_init(void *opaque, unsigned int vcpu_size, +int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, struct module *module) { int r; @@ -2228,8 +2228,9 @@ int kvm_init(void *opaque, unsigned int vcpu_size, goto out_free_4; /* A kmem cache lets us meet the alignment requirements of fx_save. */ - kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, - __alignof__(struct kvm_vcpu), + if (!vcpu_align) + vcpu_align = __alignof__(struct kvm_vcpu); + kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align, 0, NULL); if (!kvm_vcpu_cache) { r = -ENOMEM; |