Re: [PATCH v4 20/21] KVM: arm64: Export SDEI capability

Eric Auger
2021-11-10T13:55:23Z

On 8/15/21 2:13 AM, Gavin Shan wrote:
> The SDEI functionality is ready to be exported so far. This adds
> new capability (KVM_CAP_ARM_SDEI) and exports it.

Need to be documented in
kvm/api.rst
as the rest of the API

Eric
>
> Signed-off-by: Gavin Shan <gshan@redhat.com>
> ---
> arch/arm64/kvm/arm.c | 3 +++
> include/uapi/linux/kvm.h | 1 +
> 2 files changed, 4 insertions(+)
>
> diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
> index 215cdbeb272a..7d9bbc888ae5 100644
> --- a/arch/arm64/kvm/arm.c
> +++ b/arch/arm64/kvm/arm.c
> @@ -278,6 +278,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
> case KVM_CAP_ARM_PTRAUTH_GENERIC:
> r = system_has_full_ptr_auth();
> break;
> + case KVM_CAP_ARM_SDEI:
> + r = 1;
> + break;
> default:
> r = 0;
> }
> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
> index 8cf41fd4bf86..2aa748fd89c7 100644
> --- a/include/uapi/linux/kvm.h
> +++ b/include/uapi/linux/kvm.h
> @@ -1112,6 +1112,7 @@ struct kvm_ppc_resize_hpt {
> #define KVM_CAP_BINARY_STATS_FD 203
> #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
> #define KVM_CAP_ARM_MTE 205
> +#define KVM_CAP_ARM_SDEI 206
>
> #ifdef KVM_CAP_IRQ_ROUTING
>
>
Eric