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Thu, 30 Oct 2025 13:02:09 +0000 Received: from MN2PR12MB3613.namprd12.prod.outlook.com ([fe80::1b3b:64f5:9211:608b]) by MN2PR12MB3613.namprd12.prod.outlook.com ([fe80::1b3b:64f5:9211:608b%4]) with mapi id 15.20.9275.011; Thu, 30 Oct 2025 13:02:09 +0000 Date: Thu, 30 Oct 2025 10:02:08 -0300 From: Jason Gunthorpe To: Nicolin Chen Cc: Shameer Kolothum , "eric.auger@redhat.com" , "qemu-arm@nongnu.org" , "qemu-devel@nongnu.org" , "peter.maydell@linaro.org" , "ddutile@redhat.com" , "berrange@redhat.com" , Nathan Chen , Matt Ochs , "smostafa@google.com" , "wangzhou1@hisilicon.com" , "jiangkunkun@huawei.com" , "jonathan.cameron@huawei.com" , "zhangfei.gao@linaro.org" , "zhenzhong.duan@intel.com" , "yi.l.liu@intel.com" , "shameerkolothum@gmail.com" Subject: Re: [PATCH v4 19/27] hw/arm/smmuv3-accel: Install S1 bypass hwpt on reset Message-ID: <20251030130208.GP1018328@nvidia.com> References: <20250929133643.38961-1-skolothumtho@nvidia.com> <20250929133643.38961-20-skolothumtho@nvidia.com> <76ce5b05-98fe-4682-a5ca-2f87b7535f35@redhat.com> Content-Type: text/plain; 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envelope-from=jgg@nvidia.com; helo=MW6PR02CU001.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, Oct 30, 2025 at 12:35:43AM -0700, Nicolin Chen wrote: > However, we have CPU like Grace that doesn't have S2FWB.. Those CPUs basically ignore all of these cachability attributes. Jason