On 8/13/2020 5:10 PM, Andrew Jones wrote:
> On Thu, Aug 13, 2020 at 02:05:17PM +0800, Peng Liang wrote:
>> Add KVM_CAP_ARM_CPU_FEATURE extension for userpace to check whether KVM
>> supports to set CPU features in AArch64.
>>
>> Signed-off-by: zhanghailiang <zhang.zhanghailiang@xxxxxxxxxx>
>> Signed-off-by: Peng Liang <liangpeng10@xxxxxxxxxx>
>> ---
>> arch/arm64/kvm/arm.c | 1 +
>> include/uapi/linux/kvm.h | 1 +
>> 2 files changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
>> index 18ebbe1c64ee..72b9e8fc606f 100644
>> --- a/arch/arm64/kvm/arm.c
>> +++ b/arch/arm64/kvm/arm.c
>> @@ -194,6 +194,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
>> case KVM_CAP_ARM_IRQ_LINE_LAYOUT_2:
>> case KVM_CAP_ARM_NISV_TO_USER:
>> case KVM_CAP_ARM_INJECT_EXT_DABT:
>> + case KVM_CAP_ARM_CPU_FEATURE:
>> r = 1;
>> break;
>> case KVM_CAP_ARM_SET_DEVICE_ADDR:
>> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
>> index 1029444d04aa..0eca4f7c7fef 100644
>> --- a/include/uapi/linux/kvm.h
>> +++ b/include/uapi/linux/kvm.h
>> @@ -1035,6 +1035,7 @@ struct kvm_ppc_resize_hpt {
>> #define KVM_CAP_LAST_CPU 184
>> #define KVM_CAP_SMALLER_MAXPHYADDR 185
>> #define KVM_CAP_S390_DIAG318 186
>> +#define KVM_CAP_ARM_CPU_FEATURE 187
>>
>> #ifdef KVM_CAP_IRQ_ROUTING
>>
>> --
>> 2.18.4
>>
>
> All new caps should be documented in Documentation/virt/kvm/api.rst
>
> Thanks,
> drew
>
> .
>
Sorry, I'll document it.
Thanks,
Peng
