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{ "id": 2224411, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2224411/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260417-jmac-feat_rme_gdi-v2-0-7cf5131aeb60@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260417-jmac-feat_rme_gdi-v2-0-7cf5131aeb60@linaro.org>", "list_archive_url": null, "date": "2026-04-17T11:02:52", "name": "[v2,0/4] FEAT_RME_GDI initial work", "submitter": { "id": 92076, "url": "http://patchwork.ozlabs.org/api/1.2/people/92076/?format=api", "name": "Jim MacArthur", "email": "jim.macarthur@linaro.org" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260417-jmac-feat_rme_gdi-v2-0-7cf5131aeb60@linaro.org/mbox/", "series": [ { "id": 500311, "url": "http://patchwork.ozlabs.org/api/1.2/series/500311/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500311", "date": "2026-04-17T11:02:52", "name": "FEAT_RME_GDI initial work", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500311/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2224411/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=r1bpWHlR;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAF0T4mkC/32NQQrCMBBFr1JmbSQJ2lRX3kNKCZlpO2IbmZSil\n Nzd2AO4fA/++xskEqYE12oDoZUTx7mAPVQQRj8PpBgLg9W21idTq8fkg+rJL51M1A3Iyplg0SL\n Wzmkou5dQz++9eW8Lj5yWKJ/9YjU/+6+2GqUVXnqvXWMIz83tybOXeIwyQJtz/gIEtRjkswAAA\n A==", "To": "qemu-devel@nongnu.org", "Cc": "Peter Maydell <peter.maydell@linaro.org>,\n Richard Henderson <richard.henderson@linaro.org>, qemu-arm@nongnu.org,\n Jim MacArthur <jim.macarthur@linaro.org>", "X-Mailer": "b4 0.13.0", "Received-SPF": "pass client-ip=2a00:1450:4864:20::32a;\n envelope-from=jim.macarthur@linaro.org; helo=mail-wm1-x32a.google.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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Adds FEAT_RME_GDI, some extra cases to arm_granule_protection_check,\nand a very basic TCG test to check the prerequisites of FEAT_RME_GDI:\nFEAT_RME and FEAT_RME_GPC2.\n\nFEAT_RME_GDI is not enabled yet as no functional support has been\nadded; it can easily be enabled in cpu_arm_set_rme in future.\n\nIn the future we should correctly set bits in the fault address\nregisters such as PFAR_EL2, but I don't see any apparent support for\nthese in the existing GPT mechanism. Testing this also gets tricky as\nI think this would have to be done from EL3 (e.g. by modifying\ntest_rme_virt.py)\n\nSigned-off-by: Jim MacArthur <jim.macarthur@linaro.org>\n---\nChanges in v2:\n- arm_granule protection_check now checks SA, NSP, NA6, NA7 and\n goes to fault_fail if set for the appropriate GDI encoding.\n- New fields for GPCCR: SA, NSP, NA6, NA7 and GPCBW\n- Since we're touching AA64MMFR4, added in all the new fields not\n currently listed.\n- Link to v1: https://lore.kernel.org/qemu-devel/20260416-jmac-feat_rme_gdi-v1-0-d9fa0781ed58@linaro.org\n\n---\nJim MacArthur (4):\n target/arm/cpu-features.c: New fields in AA64MMFR4\n target/arm/cpu.h: New GPCCR fields\n target/arm/ptw.c: Add GDI spaces to the granule protection case\n tests/tcg/aarch64/system/rme_gdi.c: Very basic test of GDI\n\n target/arm/cpu-features.h | 8 ++++++\n target/arm/cpu.h | 5 ++++\n target/arm/ptw.c | 20 ++++++++++++++\n tests/tcg/aarch64/system/rme_gdi.c | 56 ++++++++++++++++++++++++++++++++++++++\n 4 files changed, 89 insertions(+)\n---\nbase-commit: da6c4fe60fee30dd77267764d55b38af9cb89d4b\nchange-id: 20260416-jmac-feat_rme_gdi-71c2d2dd6770\n\nBest regards," }