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

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Message-ID: <29ff20b5-2395-2f2e-3c5c-6061c9a00716@redhat.com>
Date:   Wed, 12 Jan 2022 15:20:45 +0800
From:   Gavin Shan <gshan@...hat.com>
To:     Eric Auger <eauger@...hat.com>, kvmarm@...ts.cs.columbia.edu
Cc:     maz@...nel.org, linux-kernel@...r.kernel.org,
        Jonathan.Cameron@...wei.com, pbonzini@...hat.com, will@...nel.org
Subject: Re: [PATCH v4 20/21] KVM: arm64: Export SDEI capability

On 11/10/21 9:55 PM, Eric Auger wrote:
> 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
> 

Ok, Thanks, Eric :)


>>
>> Signed-off-by: Gavin Shan <gshan@...hat.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
>