diff options
| -rw-r--r-- | drivers/kvm/kvm_main.c | 6 | ||||
| -rw-r--r-- | include/linux/kvm.h | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 5d24203afd20..39cf8fd343a3 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -2416,6 +2416,12 @@ static long kvm_dev_ioctl(struct file *filp, r = 0; break; } + case KVM_CHECK_EXTENSION: + /* + * No extensions defined at present. + */ + r = 0; + break; default: ; } diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 93472daec120..c93cf53953af 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -232,6 +232,11 @@ struct kvm_cpuid { #define KVM_GET_API_VERSION _IO(KVMIO, 0x00) #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) +/* + * Check if a kvm extension is available. Argument is extension number, + * return is 1 (yes) or 0 (no, sorry). + */ +#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03) /* * ioctls for VM fds |