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linux-davinci-2.6.23
Commit 5d308f45 authored by Avi Kivity's avatar Avi Kivity
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KVM: Add method to check for backwards-compatible API extensions 

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 739872c5
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drivers/kvm/kvm_main.c
View file @ 5d308f45
...@@ -2416,6 +2416,12 @@ static long kvm_dev_ioctl(struct file *filp, ...@@ -2416,6 +2416,12 @@ static long kvm_dev_ioctl(struct file *filp,
r = 0; r = 0;
break; break;
} }
case KVM_CHECK_EXTENSION:
/*
* No extensions defined at present.
*/
r = 0;
break;
default: default:
; ;
} }
......
include/linux/kvm.h
View file @ 5d308f45
...@@ -232,6 +232,11 @@ struct kvm_cpuid { ...@@ -232,6 +232,11 @@ struct kvm_cpuid {
#define KVM_GET_API_VERSION _IO(KVMIO, 0x00) #define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) #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 * ioctls for VM fds
......
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