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Mon, 03 Mar 2025 21:38:36 -0800 (PST) Received: from [192.168.68.55] ([180.233.125.164]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2235050d7c1sm87354825ad.198.2025.03.03.21.38.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Mar 2025 21:38:35 -0800 (PST) Message-ID: <5008db08-c153-48c0-90b3-39fa0297ba1e@redhat.com> Date: Tue, 4 Mar 2025 15:38:27 +1000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 24/45] KVM: arm64: Handle Realm PSCI requests To: Steven Price , kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Shanker Donthineni , Alper Gun , "Aneesh Kumar K . V" References: <20250213161426.102987-1-steven.price@arm.com> <20250213161426.102987-25-steven.price@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20250213161426.102987-25-steven.price@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/14/25 2:14 AM, Steven Price wrote: > The RMM needs to be informed of the target REC when a PSCI call is made > with an MPIDR argument. Expose an ioctl to the userspace in case the PSCI > is handled by it. > > Co-developed-by: Suzuki K Poulose > Signed-off-by: Suzuki K Poulose > Signed-off-by: Steven Price > --- > Changes since v6: > * Use vcpu_is_rec() rather than kvm_is_realm(vcpu->kvm). > * Minor renaming/formatting fixes. > --- > arch/arm64/include/asm/kvm_rme.h | 3 +++ > arch/arm64/kvm/arm.c | 25 +++++++++++++++++++++++++ > arch/arm64/kvm/psci.c | 30 ++++++++++++++++++++++++++++++ > arch/arm64/kvm/rme.c | 14 ++++++++++++++ > 4 files changed, 72 insertions(+) > Reviewed-by: Gavin Shan