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[175.34.62.5]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23acb2e1b3esm96630595ad.35.2025.06.30.23.41.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Jun 2025 23:41:39 -0700 (PDT) Message-ID: <5930a931-b809-497d-8eb2-076570738ef7@redhat.com> Date: Tue, 1 Jul 2025 16:41:30 +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 v9 13/43] arm64: RME: Support for the VGIC in realms 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" , Emi Kisanuki References: <20250611104844.245235-1-steven.price@arm.com> <20250611104844.245235-14-steven.price@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20250611104844.245235-14-steven.price@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 6/11/25 8:48 PM, Steven Price wrote: > The RMM provides emulation of a VGIC to the realm guest but delegates > much of the handling to the host. Implement support in KVM for > saving/restoring state to/from the REC structure. > > Signed-off-by: Steven Price > --- > Changes from v8: > * Propagate gicv3_hcr to from the RMM. > Changes from v5: > * Handle RMM providing fewer GIC LRs than the hardware supports. > --- > arch/arm64/include/asm/kvm_rme.h | 1 + > arch/arm64/kvm/arm.c | 16 +++++++++-- > arch/arm64/kvm/rme.c | 5 ++++ > arch/arm64/kvm/vgic/vgic-init.c | 2 +- > arch/arm64/kvm/vgic/vgic-v3.c | 6 +++- > arch/arm64/kvm/vgic/vgic.c | 49 ++++++++++++++++++++++++++++++-- > 6 files changed, 72 insertions(+), 7 deletions(-) > Reviewed-by: Gavin Shan