{"id":2225863,"url":"http://patchwork.ozlabs.org/api/covers/2225863/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421-mips-octeon-missing-insns-v2-v2-0-a0791df188c9@gmail.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/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-mips-octeon-missing-insns-v2-v2-0-a0791df188c9@gmail.com>","list_archive_url":null,"date":"2026-04-21T17:27:27","name":"[v2,00/13] target/mips: add missing Octeon user-mode support","submitter":{"id":66301,"url":"http://patchwork.ozlabs.org/api/people/66301/?format=json","name":"James Hilliard","email":"james.hilliard1@gmail.com"},"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260421-mips-octeon-missing-insns-v2-v2-0-a0791df188c9@gmail.com/mbox/","series":[{"id":500858,"url":"http://patchwork.ozlabs.org/api/series/500858/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500858","date":"2026-04-21T17:27:27","name":"target/mips: add missing Octeon user-mode support","version":2,"mbox":"http://patchwork.ozlabs.org/series/500858/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2225863/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=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=Ff2kxor5;\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=H4sIAAAAAAAC/yXMQQrCQAxG4auUrA0MUVv0KuJCY1ojmCnz1yKU3\n t1Rd+/bvIVgxQ10bBYqNjs8R4VsGtL7JQZjv1WTJGnTThI/fQRnnSxHbcBjYA8EeBbeW3vYdl3\n SXpTqYizW+/u3P53/xuv6MJ2+T1rXD2CyRfiAAAAA","X-Change-ID":"20260420-mips-octeon-missing-insns-v2-5e693770cf2c","To":"qemu-devel@nongnu.org","Cc":"Laurent Vivier ,\n Pierrick Bouvier , =?utf-8?q?Philippe_Mathieu?=\n\t=?utf-8?q?-Daud=C3=A9?= ,\n Aurelien Jarno ,\n Jiaxun Yang ,\n Aleksandar Rikalo , Huacai Chen ,\n James Hilliard ","X-Mailer":"b4 0.15.2","Received-SPF":"pass client-ip=2607:f8b0:4864:20::230;\n envelope-from=james.hilliard1@gmail.com; helo=mail-oi1-x230.google.com","X-Spam_score_int":"-17","X-Spam_score":"-1.8","X-Spam_bar":"-","X-Spam_report":"(-1.8 / 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 FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001,\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 ","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":"This series updates MIPS linux-user unaligned-access behavior and fills\nin missing Octeon user-mode instruction support used by existing Octeon\nbinaries.\n\nThe first patch models the Linux/MIPS MIPS_FIXADE policy so user-mode\nunaligned scalar accesses default to software fixups and\nsysmips(MIPS_FIXADE) can toggle SIGBUS/BUS_ADRALN behavior.\n\nThe Octeon patches add integer, indexed memory, atomic, multiplier, COP2\ncrypto, CHORD, and LLM support. The series also adds a small\nmips64/mips64el TCG guest test covering representative Octeon integer,\nmultiplier, and COP2 selector paths. The final patch corrects the\nOcteon68XX CP1 feature bits and FCR defaults.\n\nChanges since v1:\n- Split BADDU/DMUL destination fixes into a preliminary patch.\n- Split the SEQ/SNE decode refactoring into a preliminary patch.\n- Moved Octeon multiplier state to uint64_t arrays and updated VMState.\n- Switched Octeon helper ABIs to i64/uint64_t where applicable.\n- Moved COP2 selector decode/support logic into octeon_translate.c.\n- Converted Octeon translator TCG ops to explicit i64 forms.\n- Added in-tree TCG tests for mips64 and mips64el linux-user.\n- Used switch ranges and g_assert_not_reached() for SHA3/ZUC shared\n selector handling.\n- Dropped Octeon prefixes from generic Camellia helper routines.\n- Replaced the reflected GFM 64-bit carryless multiply loop with\n crypto/clmul.h.\n- Moved the Octeon68XX CP1 CPU-model correction to the end of the\n series.\n- Added migration coverage for Octeon COP2 crypto and LLM sparse state.\n\nSigned-off-by: James Hilliard \n---\nJames Hilliard (13):\n linux-user/mips, target/mips: honor MIPS_FIXADE for unaligned accesses\n target/mips: fix Octeon arithmetic destination handling\n target/mips: split Octeon SEQ/SNE decode\n target/mips: use explicit i64 TCG ops for Octeon translation\n target/mips: add Octeon arithmetic and memory instructions\n target/mips: add Octeon LA* atomic instructions\n target/mips: add Octeon COP2 crypto core support\n target/mips: add Octeon SMS4 crypto support\n target/mips: add Octeon SHA3 crypto support\n target/mips: add Octeon ZUC crypto support\n target/mips: add Octeon Camellia crypto support\n target/mips: add Octeon CHORD and LLM COP2 support\n target/mips: expose Octeon68XX floating-point support\n\n MAINTAINERS | 2 +\n linux-user/mips/cpu_loop.c | 5 +\n linux-user/mips/target_syscall.h | 3 +\n linux-user/mips64/target_syscall.h | 3 +\n linux-user/syscall.c | 60 +\n target/mips/cpu-defs.c.inc | 10 +-\n target/mips/cpu.c | 75 +-\n target/mips/cpu.h | 249 +++\n target/mips/helper.h | 6 +\n target/mips/internal.h | 3 +\n target/mips/system/machine.c | 142 ++\n target/mips/tcg/meson.build | 1 +\n target/mips/tcg/octeon.decode | 47 +-\n target/mips/tcg/octeon_crypto.c | 2479 +++++++++++++++++++++++++\n target/mips/tcg/octeon_translate.c | 704 ++++++-\n target/mips/tcg/op_helper.c | 105 ++\n target/mips/tcg/translate.c | 23 +-\n target/mips/tcg/translate.h | 1 +\n tests/tcg/mips/Makefile.target | 11 +\n tests/tcg/mips/user/isa/octeon/octeon-insns.c | 216 +++\n tests/tcg/mips64/Makefile.target | 20 +\n tests/tcg/mips64el/Makefile.target | 8 +\n 22 files changed, 4129 insertions(+), 44 deletions(-)\n---\nbase-commit: 98b060da3a4f92b2a994ead5b16a87e783baf77c\nchange-id: 20260420-mips-octeon-missing-insns-v2-5e693770cf2c\n\nBest regards,\n-- \nJames Hilliard "}