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Mon, 17 Aug 2026 08:07:10 -0700 (PDT) Received: from X1 ([178.66.48.90]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cc13bf05584sm900775a12.4.2026.08.17.08.07.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Aug 2026 08:07:09 -0700 (PDT) From: Vladimir Isaev To: qemu-devel@nongnu.org Cc: palmer@dabbelt.com, alistair.francis@wdc.com, liwei1518@gmail.com, daniel.barboza@oss.qualcomm.com, zhiwei_liu@linux.alibaba.com, chao.liu@processmission.com, qemu-riscv@nongnu.org, joel@jms.id.au, npiggin@gmail.com, Vladimir Isaev Subject: [PATCH v2 0/2] Fix alignment check for misa write Date: Mon, 17 Aug 2026 18:06:36 +0300 Message-ID: <20260817150653.40357-1-vvisaev@gmail.com> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::530; envelope-from=vvisaev@gmail.com; helo=mail-pg1-x530.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Current version disable misa.C on misa write when next instruciton is not aligned, fix it and add test. Changes from v1: - Use the test from https://lore.kernel.org/r/20260321144554.606417-2-npiggin@gmail.com, since it is much more comprehensive than mine. - Add GUEST_ERROR_LOG on a bad write attempt. Vladimir Isaev (2): riscv: csr: do not drop C bit on misa write tests/tcg/riscv64: add misa write test target/riscv/tcg/csr.c | 10 ++- tests/tcg/riscv64/Makefile.softmmu-target | 4 ++ tests/tcg/riscv64/test-misa-w.S | 88 +++++++++++++++++++++++ 3 files changed, 99 insertions(+), 3 deletions(-) create mode 100644 tests/tcg/riscv64/test-misa-w.S -- 2.55.0