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[174.21.75.75]) by smtp.gmail.com with ESMTPSA id k14sm9584798pji.45.2021.10.30.10.20.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Oct 2021 10:20:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7mVMLvhvHhRE4SNYEq8lTvIaJ67DT2EyP7H4YHihO6k=; b=e9tFOewGX8cs8ldY+qy3eJoZ1SCcY+REGjWps39XAIFleMUQv/RUMdD8tAx3OtwJHJ 7cqBHvKlSVinGdtI5A0zWKq2YSj+FYHimq746T7GF9xi2zsBOm8+w7l9HT1Ii+GLoZLd SJVbG4w07av2hXlsQElwuDSnh83GDsGzA1mij3f86a3J2nhLqwlApj6MaWr2OVajBNHG dDzNLBLoW7FH/SQZz1At/ShE3cnnkPzU73nm3DY6g6k2ugaAkpFyk+TgQTP0xvVYFS4V EUIzHwOXVILTPumaZbVoqnJl4mfxvya9FkdWIRfexq34x0teWX7yyH7MsJDinVSn3fLI 4DUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7mVMLvhvHhRE4SNYEq8lTvIaJ67DT2EyP7H4YHihO6k=; b=aB6HYmudgpamAIn5ASdxnd65UDo9fTWQecatICmXdSMYTr7TwOpNazkpoz0eCTZkeI 1rrzG7REnoUjgG1FHZPG+VcvLzfuq7r2BOhbVhM9dcS7hsd0PX6pzUI1MyWor7gFGtDl vMXjdywOavLdxFvnU5aFrTpgrXrKyftfo8oByj3crVZfuA9Brk1r0+zduwtw76WHah2w hc/jnMpZCdd0eNoCKo6jggvc/pLOO4G16eQq1VMaYdjXbcz6008gY5jQhXwZf4o91Ni3 qf/ZtB8k+6x3hZXbs7Wyq1UVVSu+WvlKR0RgUd8Veec66QzJiAdVsD7vjwGjtjMmquwJ O1zw== X-Gm-Message-State: AOAM530ciweM6NU+N0/vurZzQoK/umzSDmDpH7SYQ6zN7krxlrOQxPOz KLt/Z/5zCdY+lRWOKDhvPtw+afKc5lXGPw== X-Google-Smtp-Source: ABdhPJycbYIj2QjN//k7kU+MPo6jKFNIB7BRU5VDT2eZlY+ELKIgeTQgiHtOFVArTsyaWW3Fksh1Nw== X-Received: by 2002:a63:3716:: with SMTP id e22mr13756546pga.75.1635614430899; Sat, 30 Oct 2021 10:20:30 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v6 59/66] tcg: Add helper_unaligned_{ld, st} for user-only sigbus Date: Sat, 30 Oct 2021 10:16:28 -0700 Message-Id: <20211030171635.1689530-60-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211030171635.1689530-1-richard.henderson@linaro.org> References: <20211030171635.1689530-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::429; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x429.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: , Cc: Peter Maydell , alex.bennee@linaro.org, laurent@vivier.eu, imp@bsdimp.com, f4bug@amsat.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1635619778218100001 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. Reviewed-by: Warner Losh Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- include/tcg/tcg-ldst.h | 5 +++++ accel/tcg/user-exec.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/include/tcg/tcg-ldst.h b/include/tcg/tcg-ldst.h index 8c86365611..bf40942de4 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 a= ddr, uint32_t val, void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, MemOpIdx oi, uintptr_t retaddr); =20 +#else + +void QEMU_NORETURN helper_unaligned_ld(CPUArchState *env, target_ulong add= r); +void QEMU_NORETURN helper_unaligned_st(CPUArchState *env, target_ulong add= r); + #endif /* CONFIG_SOFTMMU */ #endif /* TCG_LDST_H */ diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index aaf47d89d2..1528a21fad 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" =20 __thread uintptr_t helper_retaddr; @@ -215,6 +216,16 @@ static void validate_memop(MemOpIdx oi, MemOp expected) #endif } =20 +void helper_unaligned_ld(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_LOAD, GETPC()); +} + +void helper_unaligned_st(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_STORE, GETPC()); +} + static void *cpu_mmu_lookup(CPUArchState *env, target_ulong addr, MemOpIdx oi, uintptr_t ra, MMUAccessType type) { --=20 2.25.1