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[172.254.253.57]) by smtp.gmail.com with ESMTPSA id bm25sm12730854qkb.4.2021.11.02.04.11.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Nov 2021 04:11:16 -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=EXCMgBL6JncL+Ht+0m6fVjNh3/ZUBQ/484zt/rmGgjE0SHh1ps1eFlUTIvhp0Kvq6v ju7flJy/ekZoO75GuO1xg0QK1jSy6Xu2imlz0R/lLcYOJRfC4bOafENaABZg+hPqci9p YF6NKDp0V/FR/GM0En/KeRCf7wW7IR+FqB4WABV3Z3bMYRKWCsdGbWsIqMqqbYc2V7Ou hISYPeZIQvbPczOwVePTPrHosDM51Bx4jajTyTZ8Y6HozLxSbbcKlSMXiYEMncVl71Mq c6T8cWxp3QF9G07XK9Z7OxOGIhNp4RyxfYRALPqExztO65hDLHaWNPYcL2y4FkMs53ql 1jUA== 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=seDqJpNHmIkteiALw1mfVAtBUij5rJ+oKN7nYtlG/PxjPHi+bgu+eRgn/Hi8EpgLY1 iuecoBmf1kmjkEcRCb1jr7bzeuoyqetwU5SJGEKa8bFqcEHnOrgIMEf2W2C48G7gMf0b ViogZreqbaw5/O3BKQ960SpK6po0oGwKkhE2Y48x9wVYhdVghOV3Fy5J56X6DFg315B/ vg/fLBBUuyydV/ri2r4zzM3mV9vDcilep9PSGYJZiQgBfTj8IhOmDSFYN5qXJJapreTe m1pO7gG7q1oi6k12DhXOl4Yj7LxaluCNCYaEEpj/wJKCsvQPa75TF4WsfB4Gzh2ct6ot JSjA== X-Gm-Message-State: AOAM533Z7bzVUGNZXAh+YPwCJqhzwTzvTMVRnTWGK63ewzct8U+UxwQD NUinzg9KbYJRkb8TlskpH/pI5Tldyf+2PA== X-Google-Smtp-Source: ABdhPJyiOGNaUHTOGdov4J9GPUtNwsZKcoYtu/AMhiNZV0KBoMiP0IYZdr87kKlRboVXhlCIIUueVg== X-Received: by 2002:ac8:6158:: with SMTP id d24mr36642804qtm.115.1635851476932; Tue, 02 Nov 2021 04:11:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 59/60] tcg: Add helper_unaligned_{ld,st} for user-only sigbus Date: Tue, 2 Nov 2021 07:07:39 -0400 Message-Id: <20211102110740.215699-60-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211102110740.215699-1-richard.henderson@linaro.org> References: <20211102110740.215699-1-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::82b; envelope-from=richard.henderson@linaro.org; helo=mail-qt1-x82b.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Warner Losh 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: 1635854240505100003 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