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[173.198.77.218]) by smtp.gmail.com with ESMTPSA id ns18sm12091020pjb.31.2021.08.02.21.18.36 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 21:18:37 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 42/55] tcg: Add helper_unaligned_mmu for user-only sigbus Date: Mon, 2 Aug 2021 18:14:30 -1000 Message-Id: <20210803041443.55452-43-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210803041443.55452-1-richard.henderson@linaro.org> References: <20210803041443.55452-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::102d; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102d.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, 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: 2.1.23 Precedence: list List-Id: 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" To be called from tcg generated code on hosts that support unaligned accesses natively, in response to an access that is supposed to be aligned. Signed-off-by: Richard Henderson --- include/tcg/tcg-ldst.h | 5 +++++ accel/tcg/user-exec.c | 7 +++++++ 2 files changed, 12 insertions(+) diff --git a/include/tcg/tcg-ldst.h b/include/tcg/tcg-ldst.h index 8c86365611..a934bed042 100644 --- a/include/tcg/tcg-ldst.h +++ b/include/tcg/tcg-ldst.h @@ -70,5 +70,10 @@ void helper_be_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val, void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, MemOpIdx oi, uintptr_t retaddr); +#else + +void QEMU_NORETURN helper_unaligned_mmu(CPUArchState *env, target_ulong addr, + uint32_t type, uintptr_t ra); + #endif /* CONFIG_SOFTMMU */ #endif /* TCG_LDST_H */ diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 46b74b5f70..2da11aeca0 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -27,6 +27,7 @@ #include "exec/helper-proto.h" #include "qemu/atomic128.h" #include "trace/trace-root.h" +#include "tcg/tcg-ldst.h" #include "internal.h" #undef EAX @@ -867,6 +868,12 @@ static void validate_memop(MemOpIdx oi, MemOp expected) #endif } +void helper_unaligned_mmu(CPUArchState *env, target_ulong addr, + uint32_t access_type, uintptr_t ra) +{ + cpu_unaligned_access(env_cpu(env), addr, access_type, MMU_USER_IDX, ra); +} + static void *cpu_mmu_lookup(CPUArchState *env, target_ulong addr, MemOpIdx oi, uintptr_t ra, MMUAccessType type) { -- 2.25.1