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Fri, 30 Jul 2021 16:17:02 -0700 From: Joe Komlodi To: Subject: [PATCH 0/1] hw/arm/smmu: Add access flag handling Date: Fri, 30 Jul 2021 16:17:01 -0700 Message-ID: <1627687022-366528-1-git-send-email-joe.komlodi@xilinx.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 32ca90d5-40aa-4e95-086a-08d953b02415 X-MS-TrafficTypeDiagnostic: DM6PR02MB5993: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:149.199.62.198; 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envelope-from=komlodi@xilinx.com; helo=NAM04-DM6-obe.outbound.protection.outlook.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: eric.auger@redhat.com, qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all, This adds a check in SMMU PTW to see if the access flag bit is set in a PTE, and if we should fault accordingly or not. Since we do not support HTTU, the check itself is pretty simple: If AFFD == 0 in the context descriptor and AF == 0 in the PTE, we fault. Otherwise, we do not have an access fault. Thanks! Joe Joe Komlodi (1): hw/arm/smmu: Add access flag handling hw/arm/smmu-common.c | 7 +++++++ hw/arm/smmu-internal.h | 8 ++++++++ hw/arm/smmuv3-internal.h | 1 + hw/arm/smmuv3.c | 1 + include/hw/arm/smmu-common.h | 1 + 5 files changed, 18 insertions(+) -- 2.7.4