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([2a01:e0a:59e:9d80:527b:9dff:feef:3874]) by smtp.gmail.com with ESMTPSA id z5sm7918884wmp.26.2021.11.10.05.55.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Nov 2021 05:55:11 -0800 (PST) Subject: Re: [PATCH v4 20/21] KVM: arm64: Export SDEI capability To: Gavin Shan , kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, linux-kernel@vger.kernel.org, Jonathan.Cameron@huawei.com, pbonzini@redhat.com, will@kernel.org References: <20210815001352.81927-1-gshan@redhat.com> <20210815001352.81927-21-gshan@redhat.com> From: Eric Auger Message-ID: <90fd5226-0889-6a7c-1586-732015943863@redhat.com> Date: Wed, 10 Nov 2021 14:55:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210815001352.81927-21-gshan@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > --- > 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