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[175.34.8.244]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a0976c8f8dsm7318263a91.12.2026.09.24.17.03.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Sep 2026 17:03:34 -0700 (PDT) Message-ID: Date: Fri, 25 Sep 2026 10:03:26 +1000 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v19 3/7] firmware: arm_rmm: Configure the RMM with the host's page size To: Suzuki K Poulose , kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: maz@kernel.org, will@kernel.org, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, steven.price@arm.com, aneesh.kumar@kernel.org, oupton@kernel.org, joey.gouly@arm.com, tabba@google.com, yuzenghui@huawei.com, linux-coco@lists.linux.dev, gankulkarni@os.amperecomputing.com, sdonthineni@nvidia.com, alpergun@google.com, fj0570is@fujitsu.com, WeiLin.Chang@arm.com, lpieralisi@kernel.org, enju.kohei@fujitsu.com, sudeep.holla@arm.com, jonathan.cameron@oss.qualcomm.com References: <20260924135201.850038-1-suzuki.poulose@arm.com> <20260924135201.850038-4-suzuki.poulose@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20260924135201.850038-4-suzuki.poulose@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 9/24/26 11:51 PM, Suzuki K Poulose wrote: > RMM v2.0 brings the ability to set the RMM's granule size. Check the > feature registers and configure the RMM so that it matches the host's > page size. This means that operations can be done with a granularity > equal to PAGE_SIZE. > > Signed-off-by: Steven Price > Signed-off-by: Suzuki K Poulose > --- > Changes since v18: > * Move the rmi_config_set closer to rmi_configure, drop the comment > * Use __free() magic for rmm_config object > Changes since v17: > * Move rmi_config_set() out of the header file. > * Print the error message for rmi_config_set if it fails > Changes since v15: > * Actually check the feature register for the host's page-size support. > Changes since v14: > * Move the implementation into drivers/firmware/arm_rmm. > Changes since v13: > * Moved out of KVM. > --- > drivers/firmware/arm_rmm/rmi.c | 70 ++++++++++++++++++++++++++++++++++ > 1 file changed, 70 insertions(+) > Reviewed-by: Gavin Shan