{"id":2225739,"url":"http://patchwork.ozlabs.org/api/1.2/covers/2225739/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421-jmac-feat_rme_gdi-v3-0-ecd20c77eae1@linaro.org/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.2/projects/14/?format=json","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":"<20260421-jmac-feat_rme_gdi-v3-0-ecd20c77eae1@linaro.org>","list_archive_url":null,"date":"2026-04-21T14:22:33","name":"[v3,0/4] FEAT_RME_GDI initial work","submitter":{"id":92076,"url":"http://patchwork.ozlabs.org/api/1.2/people/92076/?format=json","name":"Jim MacArthur","email":"jim.macarthur@linaro.org"},"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421-jmac-feat_rme_gdi-v3-0-ecd20c77eae1@linaro.org/mbox/","series":[{"id":500818,"url":"http://patchwork.ozlabs.org/api/1.2/series/500818/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500818","date":"2026-04-21T14:22:37","name":"FEAT_RME_GDI initial work","version":3,"mbox":"http://patchwork.ozlabs.org/series/500818/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2225739/comments/","headers":{"Return-Path":"","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=ddyOeV0v;\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=H4sIACmI52kC/33N0QrCIBTG8VcZXmeoa7p21XtEDNPjdqLN0CHF2\n LvndlUQXf4/OL8zkwgBIZKmmEmAhBH9mKPcFcT0euyAos1NBBOSHbikt0Eb6kBPbRig7SxSxY2\n wwlqpFCP57hHA4XMzz5fcPcbJh9f2IvF1/aclThm1R6eZqjnYqj7dcdTB733oyMol8UmoX4TIh\n DKu4iXXcJXsi1iW5Q3wPk8V9gAAAA==","To":"qemu-devel@nongnu.org","Cc":"Peter Maydell ,\n Richard Henderson , qemu-arm@nongnu.org,\n Jim MacArthur ","X-Mailer":"b4 0.13.0","Received-SPF":"pass client-ip=2a00:1450:4864:20::32d;\n envelope-from=jim.macarthur@linaro.org; helo=mail-wm1-x32d.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=unavailable 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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","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 \n---\nChanges in v3:\n- Test logic changed to accept any level of RMEGDI >= 1.\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 | 46 ++++++++++++++++++++++++++++++++++++++\n 4 files changed, 79 insertions(+)\n---\nbase-commit: da6c4fe60fee30dd77267764d55b38af9cb89d4b\nchange-id: 20260416-jmac-feat_rme_gdi-71c2d2dd6770\n\nBest regards,"}