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[103.95.112.190]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82b040debf9sm4764875b3a.47.2026.03.21.07.13.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Mar 2026 07:14:03 -0700 (PDT) From: Nicholas Piggin To: qemu-riscv@nongnu.org Cc: Nicholas Piggin , qemu-devel@nongnu.org, Laurent Vivier , Pierrick Bouvier , Palmer Dabbelt , Alistair Francis , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , Richard Henderson , Joel Stanley Subject: [PATCH v3 0/5] linux-user/riscv: add vector state to signal context Date: Sun, 22 Mar 2026 00:13:38 +1000 Message-ID: <20260321141345.599105-1-npiggin@gmail.com> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=npiggin@gmail.com; helo=mail-pf1-x435.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-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Changes in v3: - Fixed up a bunch of good review comments that Richard made against the v1 series here https://lore.kernel.org/all/06afcbdc-28e2-4d13-81d4-26fd257ed8a3@linaro.org/#r in particular: - Restoring vl/vtype state using CPU accessors rather than stuffing the values into the registers directly. - Fix ABI types. - Fix some confusion with host/guest pointer mapping. - Fix error handling to SIGSEGV. - Style fixes. - Fixed build issue without riscv intrinsics header. - Add some more test cases. Changes in v2: - Fix 32-bit compile - Moved sizeof_rt_sigframe change to its correct patch (patch 2 is the one that extends the size of rt_sigframe, patch 3 is adding new extended state to the frame which is added dynamically). This series adds vector state to the linux-user signal handler, and adds a basic signal handling test case. As a sanity check, I also verified the signal handling test works in the same way when run under a real Linux kernel. Thanks, Nick Nicholas Piggin (5): tests/tcg/riscv64: Add a user signal handling test linux-user/riscv: Allow restore_sigcontext to return error linux-user/riscv: Add extended state to sigcontext linux-user/riscv: Add vector state to signal context tests/tcg/riscv64: Add vector state to signal test linux-user/riscv/signal.c | 281 +++++++++++- linux-user/riscv/vdso-asmoffset.h | 4 +- target/riscv/cpu.h | 4 + target/riscv/csr.c | 7 +- target/riscv/vector_helper.c | 19 +- tests/tcg/riscv64/Makefile.target | 5 + tests/tcg/riscv64/test-signal-handling.c | 517 +++++++++++++++++++++++ 7 files changed, 807 insertions(+), 30 deletions(-) create mode 100644 tests/tcg/riscv64/test-signal-handling.c -- 2.51.0