diff options
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 | |
parent | 884a0ff0b68b3ece5987507de168215e14ef7849 (diff) | |
download | op-kernel-dev-0ee75bead83da4791e5cbf659806c54d8ee40f12.zip op-kernel-dev-0ee75bead83da4791e5cbf659806c54d8ee40f12.tar.gz |
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>
-rw-r--r-- | arch/ia64/kvm/vmm.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kvm/44x.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s.c | 3 | ||||
-rw-r--r-- | arch/powerpc/kvm/e500.c | 2 | ||||
-rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 | ||||
-rw-r--r-- | arch/x86/kvm/svm.c | 2 | ||||
-rw-r--r-- | arch/x86/kvm/vmx.c | 3 | ||||
-rw-r--r-- | include/linux/kvm_host.h | 2 | ||||
-rw-r--r-- | virt/kvm/kvm_main.c | 7 |
9 files changed, 14 insertions, 11 deletions
diff --git a/arch/ia64/kvm/vmm.c b/arch/ia64/kvm/vmm.c index 7a62f75..f0b9cac 100644 --- a/arch/ia64/kvm/vmm.c +++ b/arch/ia64/kvm/vmm.c @@ -51,7 +51,7 @@ static int __init kvm_vmm_init(void) vmm_fpswa_interface = fpswa_interface; /*Register vmm data to kvm side*/ - return kvm_init(&vmm_info, 1024, THIS_MODULE); + return kvm_init(&vmm_info, 1024, 0, THIS_MODULE); } static void __exit kvm_vmm_exit(void) diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c index 689a57c..73c0a3f 100644 --- a/arch/powerpc/kvm/44x.c +++ b/arch/powerpc/kvm/44x.c @@ -147,7 +147,7 @@ static int __init kvmppc_44x_init(void) if (r) return r; - return kvm_init(NULL, sizeof(struct kvmppc_vcpu_44x), THIS_MODULE); + return kvm_init(NULL, sizeof(struct kvmppc_vcpu_44x), 0, THIS_MODULE); } static void __exit kvmppc_44x_exit(void) diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 28e785fb..11f226f 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1385,7 +1385,8 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) static int kvmppc_book3s_init(void) { - return kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), THIS_MODULE); + return kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0, + THIS_MODULE); } static void kvmppc_book3s_exit(void) diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c index 669a5c5..bc2b400 100644 --- a/arch/powerpc/kvm/e500.c +++ b/arch/powerpc/kvm/e500.c @@ -161,7 +161,7 @@ static int __init kvmppc_e500_init(void) flush_icache_range(kvmppc_booke_handlers, kvmppc_booke_handlers + max_ivor + kvmppc_handler_len); - return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), THIS_MODULE); + return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE); } static void __init kvmppc_e500_exit(void) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ee7c713..8093e6f 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -752,7 +752,7 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) static int __init kvm_s390_init(void) { int ret; - ret = kvm_init(NULL, sizeof(struct kvm_vcpu), THIS_MODULE); + ret = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); if (ret) return ret; diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 889f660..2511664 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3319,7 +3319,7 @@ static struct kvm_x86_ops svm_x86_ops = { static int __init svm_init(void) { return kvm_init(&svm_x86_ops, sizeof(struct vcpu_svm), - THIS_MODULE); + __alignof__(struct vcpu_svm), THIS_MODULE); } static void __exit svm_exit(void) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 875b785..2e87296 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4245,7 +4245,8 @@ static int __init vmx_init(void) set_bit(0, vmx_vpid_bitmap); /* 0 is reserved for host */ - r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), THIS_MODULE); + r = kvm_init(&vmx_x86_ops, sizeof(struct vcpu_vmx), + __alignof__(struct vcpu_vmx), THIS_MODULE); if (r) goto out3; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ce027d5..7cb116a 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -243,7 +243,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); void vcpu_load(struct kvm_vcpu *vcpu); void vcpu_put(struct kvm_vcpu *vcpu); -int kvm_init(void *opaque, unsigned int vcpu_size, +int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, struct module *module); void kvm_exit(void); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 9ab1a77..f032806 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; |