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envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org On Fri, 31 Oct 2025 10:49:52 +0000 Shameer Kolothum wrote: > Just before the device gets attached to the SMMUv3, make sure QEMU SMMUv3 > features are compatible with the host SMMUv3. > > Not all fields in the host SMMUv3 IDR registers are meaningful for userspace. > Only the following fields can be used: > > - IDR0: ST_LEVEL, TERM_MODEL, STALL_MODEL, TTENDIAN, CD2L, ASID16, TTF > - IDR1: SIDSIZE, SSIDSIZE > - IDR3: BBML, RIL > - IDR5: VAX, GRAN64K, GRAN16K, GRAN4K > > For now, the check is to make sure the features are in sync to enable > basic accelerated SMMUv3 support. > > Signed-off-by: Shameer Kolothum LGTM Reviewed-by: Jonathan Cameron From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68FE8CCF9F8 for ; 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Mon, 3 Nov 2025 14:47:56 +0000 Date: Mon, 3 Nov 2025 14:47:55 +0000 To: Shameer Kolothum CC: , , , , , , , , , , , , , , , , Subject: Re: [PATCH v5 19/32] hw/arm/smmuv3-accel: Get host SMMUv3 hw info and validate Message-ID: <20251103144755.00003ff9@huawei.com> In-Reply-To: <20251031105005.24618-20-skolothumtho@nvidia.com> References: <20251031105005.24618-1-skolothumtho@nvidia.com> <20251031105005.24618-20-skolothumtho@nvidia.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml100011.china.huawei.com (7.191.174.247) To dubpeml100005.china.huawei.com (7.214.146.113) X-Host-Lookup-Failed: Reverse DNS lookup failed for 185.176.79.56 (deferred) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-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: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, 31 Oct 2025 10:49:52 +0000 Shameer Kolothum wrote: > Just before the device gets attached to the SMMUv3, make sure QEMU SMMUv3 > features are compatible with the host SMMUv3. > > Not all fields in the host SMMUv3 IDR registers are meaningful for userspace. > Only the following fields can be used: > > - IDR0: ST_LEVEL, TERM_MODEL, STALL_MODEL, TTENDIAN, CD2L, ASID16, TTF > - IDR1: SIDSIZE, SSIDSIZE > - IDR3: BBML, RIL > - IDR5: VAX, GRAN64K, GRAN16K, GRAN4K > > For now, the check is to make sure the features are in sync to enable > basic accelerated SMMUv3 support. > > Signed-off-by: Shameer Kolothum LGTM Reviewed-by: Jonathan Cameron