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| author | Yang, Sheng <sheng.yang@intel.com> | 2007-07-31 14:23:01 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-10-13 10:18:22 +0200 |
| commit | 002c7f7c32a6123f0894d7d579ffae8e98911830 (patch) | |
| tree | 91d46dd1d6f04f25e4f658eb8620fe69c1557c17 /drivers/kvm/kvm_main.c | |
| parent | 39214915f50f6ac2350355f2db63910d968fa790 (diff) | |
| download | lwn-002c7f7c32a6123f0894d7d579ffae8e98911830.tar.gz lwn-002c7f7c32a6123f0894d7d579ffae8e98911830.zip | |
KVM: VMX: Add cpu consistency check
All the physical CPUs on the board should support the same VMX feature
set. Add check_processor_compatibility to kvm_arch_ops for the consistency
check.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 5dee3024579d..2be6b1ca1a06 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -3102,6 +3102,7 @@ int kvm_init_arch(struct kvm_arch_ops *ops, unsigned int vcpu_size, struct module *module) { int r; + int cpu; if (kvm_arch_ops) { printk(KERN_ERR "kvm: already loaded the other module\n"); @@ -3123,6 +3124,14 @@ int kvm_init_arch(struct kvm_arch_ops *ops, unsigned int vcpu_size, if (r < 0) goto out; + for_each_online_cpu(cpu) { + smp_call_function_single(cpu, + kvm_arch_ops->check_processor_compatibility, + &r, 0, 1); + if (r < 0) + goto out_free_0; + } + on_each_cpu(hardware_enable, NULL, 0, 1); r = register_cpu_notifier(&kvm_cpu_notifier); if (r) @@ -3169,6 +3178,7 @@ out_free_2: unregister_cpu_notifier(&kvm_cpu_notifier); out_free_1: on_each_cpu(hardware_disable, NULL, 0, 1); +out_free_0: kvm_arch_ops->hardware_unsetup(); out: kvm_arch_ops = NULL; |