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[173.198.77.218]) by smtp.gmail.com with ESMTPSA id c23sm13718532pfn.140.2021.08.02.21.15.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 21:15:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=S4xfwzkgV75iY6Ms9jicJ1wRxG0Yk5EsOM0WRCiSap4=; b=tql1oGuoGbNY+IWYJxIoh9sXujNZUAM5rq46zCmmgk+t4F6FZd37ViQIJ54PhgXu9V Xe3LlhWRwPwxTkM7hKFrZvYD8FVjJzCW6u8qJPrO5cudb1rBQ2KU5clFDxqGl58gWZaE m5Df+GHGZp9ZgfNafCozx1tOLZIvpgpZoYFUe817LSsgjm0JA8Z/xJIXl/nTcBqAz92/ UUkL+iXvmamO1HI0TSX6Fjd5FZaWs367WN2CnjroeobOXUpWQC4zjU5Emv8sgxUKZxYu /xz+fcTbBwoW2cfmR22ooHnxv/naF1u0dguL5TFWdTZAIJ3k1hEHOmtia63CKcRL32ui 33eQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=S4xfwzkgV75iY6Ms9jicJ1wRxG0Yk5EsOM0WRCiSap4=; b=lw4wb0icWLLpv6p2MSRA9C+JGaKbUBNe/2LiG7BiDF8WkUh2V7CuWt0v5ETXiDomBT Rgp4S5cNXgMhbN1K/xxKBCeQbMSweVYNmHxz5jAAdriHtG/CxNqRBKiwzI+r9bTwedS5 SZnz222NBtOKDqXaQELxu37iNP63WNjXm2NcLk5hy9eLMybBBUEt4UD76KEABpO4gZmY dQh1BAkj3Xsivv+26Du7n5bZ22Ykjb+pTst6+tEdgVSVj6GT9O6kBOWtlAcT2HpBGzak NYadBQIn3A+OdhCB0ncW7soJtU5RhmLAWSpir/NxKR/7aUiyys93wRJtYGnFJaBye1K2 YQmg== X-Gm-Message-State: AOAM533doclbHTsIaJBQPqN3+5lLcRDv+hb1B6vV8F2x6mCJVS22W2gD LTc+4nztHIU319SkTYRzzTBE2TFZx5U16Q== X-Google-Smtp-Source: ABdhPJwR9kWXklsVw9c4hIIInB9kR4MNDfMYg4A3/1dR6EB0Ld7nCD/coOlC/bwWuDmfnm6j24h4Ag== X-Received: by 2002:a63:c0a:: with SMTP id b10mr205781pgl.447.1627964109000; Mon, 02 Aug 2021 21:15:09 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 20/55] accel/tcg: Report unaligned atomics for user-only Date: Mon, 2 Aug 2021 18:14:08 -1000 Message-Id: <20210803041443.55452-21-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: 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::1031; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1031.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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1627964658914100003 Content-Type: text/plain; charset="utf-8" Use the newly exposed cpu_unaligned_access for atomic_mmu_lookup, which has access to complete alignment info from the TCGMemOpIdx arg. Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --- accel/tcg/user-exec.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 90d1a2d327..5ad808a25a 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -28,6 +28,7 @@ #include "qemu/atomic128.h" #include "trace/trace-root.h" #include "trace/mem.h" +#include "internal.h" =20 #undef EAX #undef ECX @@ -1230,11 +1231,22 @@ static void *atomic_mmu_lookup(CPUArchState *env, t= arget_ulong addr, TCGMemOpIdx oi, int size, int prot, uintptr_t retaddr) { + MemOp mop =3D get_memop(oi); + int a_bits =3D get_alignment_bits(mop); + void *ret; + + /* Enforce guest required alignment. */ + if (unlikely(addr & ((1 << a_bits) - 1))) { + MMUAccessType t =3D prot =3D=3D PAGE_READ ? MMU_DATA_LOAD : MMU_DA= TA_STORE; + cpu_unaligned_access(env_cpu(env), addr, t, get_mmuidx(oi), retadd= r); + } + /* Enforce qemu required alignment. */ if (unlikely(addr & (size - 1))) { cpu_loop_exit_atomic(env_cpu(env), retaddr); } - void *ret =3D g2h(env_cpu(env), addr); + + ret =3D g2h(env_cpu(env), addr); set_helper_retaddr(retaddr); return ret; } --=20 2.25.1