Hi Suzuki
On 2018/10/10 1:22, Suzuki K Poulose wrote:
>
>
> On 08/10/18 13:34, Dongjiu Geng wrote:
>> The commit 539aee0edb9f ("KVM: arm64: Share the parts of
>> get/set events useful to 32bit") shares the get/set events
>> helper for arm64 and arm32, it is better also share the check
>> for vcpu events capability to enable 32 bit kvm vcpu events
>> support.
>>
>> User space will check whether KVM supports vcpu events through
>> KVM_CAP_VCPU_EVENTS IOCTL.
>
> nit: User space will check whether KVM supports vcpu events by checking
> the KVM_CAP_VCPU_EVENTS extension.
Thanks for the pointing out, I will update it.
>
>>
>> Cc: James Morse <james.mo...@arm.com>
>> Signed-off-by: Dongjiu Geng <gengdong...@huawei.com>
>
> Reviewed-by : Suzuki K Poulose <suzuki.poul...@arm.com>
>
>> ---
>> For the 32 bits kvm migration, it needs to enable the vcpu events,
>> this patch will enable it. The user space QEMU patch is here:
>> https://patchwork.ozlabs.org/patch/975615/
>> ---
>> arch/arm64/kvm/reset.c | 1 -
>> virt/kvm/arm/arm.c | 1 +
>> 2 files changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
>> index fd37c53..e50245e 100644
>> --- a/arch/arm64/kvm/reset.c
>> +++ b/arch/arm64/kvm/reset.c
>> @@ -82,7 +82,6 @@ int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm,
>> long ext)
>> break;
>> case KVM_CAP_SET_GUEST_DEBUG:
>> case KVM_CAP_VCPU_ATTRIBUTES:
>> - case KVM_CAP_VCPU_EVENTS:
>> r = 1;
>> break;
>> default:
>> diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
>> index 40e79ea..64e5d97 100644
>> --- a/virt/kvm/arm/arm.c
>> +++ b/virt/kvm/arm/arm.c
>> @@ -212,6 +212,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long
>> ext)
>> case KVM_CAP_READONLY_MEM:
>> case KVM_CAP_MP_STATE:
>> case KVM_CAP_IMMEDIATE_EXIT:
>> + case KVM_CAP_VCPU_EVENTS:
>> r = 1;
>> break;
>> case KVM_CAP_ARM_SET_DEVICE_ADDR:
>>
>
> .
>
