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([2602:ae:1598:4c01:35a2:c45d:7485:f488]) by smtp.gmail.com with ESMTPSA id g18-20020a63fa52000000b0051f14839bf3sm9128496pgk.34.2023.05.30.11.59.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 May 2023 11:59:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685473192; x=1688065192; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FoEMis0kyhsJX42FKpROxvOgsZYA3JLlv/upAz9v6bQ=; b=FuRfhdA23q6j+ztqHZ5fEgV/Q/UMqZtdhatuMjGEHCPNxb61vt+n5X6lkrgENeUQGb lfyD+pVEHF8Dm4ef2Q1UUUMuMR/NCBOZpK+EOWsqMyC474VwZLUFpVjbqUXlwOa/sQ8C TL/C4MWBA4302oVHU8IpG3lKlk4g0RimJW1tBihes9SdBSaIuOXpoWDayiYx7ETFxxWR v82uVqyMKr1pJTDSm1CTRK7u5iKFe2Ccc7vWbHnSHGydAtdsLgk0r2LePjLGKEFAido5 PEfmHXSaN9q80eIwRjTSIxvD9L9RqCS0e6j0wxD6xins8GVUwOdQ+iph2iV8r15JXzz1 Aw5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685473192; x=1688065192; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FoEMis0kyhsJX42FKpROxvOgsZYA3JLlv/upAz9v6bQ=; b=DN2GgckLszi4fz8uOAWS1b4eEvq2WV/jmNCoKDQFdI8ZHkiZ1/NdSGmxVR7mJpEB7W mo6LKLkSSq8sej9qjC8dzVAwb2WVvjg5uZ5TWsusOPpqKRqtki4km9KQqNzmIIJaQA2D 5DJtWMCqUzEg/rRaSLH6DYy3k+m/4QTgdgHE99izp0SgkAD3sve+elqSCRaI4uCJr+Hp ptXa0Xy7OCVT0TbyfLEPb8gWQfyHeuKvUVNrKB6RTajsauJ/hNvHIiArUcLwN29BhT+T ek7T/MqWt/kmmjYknsEO2tB9gU+9rG7Vmfsk2Ml0fqXmU6C1N6vGrjTfNmRDhAchhZKd M6EQ== X-Gm-Message-State: AC+VfDxKeIkVY/4E39jvzMbF0TlW8405xYQmFEhh+t5dqlzAfcFfp8w9 C+ZvMHCv8b4LIUSvcRYo/5v6mPMgSymUgm/KyPY= X-Google-Smtp-Source: ACHHUZ6Zd/kcCaQBcU4lyNodp9zeuhxBjj04WRbt/AKehMjFtXXFuP43KMbQC2c5SKyXWtqeRKitSw== X-Received: by 2002:a17:90a:d588:b0:256:831b:8f45 with SMTP id v8-20020a17090ad58800b00256831b8f45mr3664739pju.16.1685473192516; Tue, 30 May 2023 11:59:52 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Peter Maydell Subject: [PULL 02/27] accel/tcg: Fix check for page writeability in load_atomic16_or_exit Date: Tue, 30 May 2023 11:59:24 -0700 Message-Id: <20230530185949.410208-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230530185949.410208-1-richard.henderson@linaro.org> References: <20230530185949.410208-1-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::1032; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1032.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, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1685473348222100001 Content-Type: text/plain; charset="utf-8" PAGE_WRITE is current writability, as modified by TB protection; PAGE_WRITE_ORG is the original page writability. Fixes: cdfac37be0d ("accel/tcg: Honor atomicity of loads") Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- accel/tcg/ldst_atomicity.c.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/accel/tcg/ldst_atomicity.c.inc b/accel/tcg/ldst_atomicity.c.inc index 0f6b3f8ab6..35ce6d6368 100644 --- a/accel/tcg/ldst_atomicity.c.inc +++ b/accel/tcg/ldst_atomicity.c.inc @@ -156,7 +156,7 @@ static uint64_t load_atomic8_or_exit(CPUArchState *env,= uintptr_t ra, void *pv) * another process, because the fallback start_exclusive solution * provides no protection across processes. */ - if (!page_check_range(h2g(pv), 8, PAGE_WRITE)) { + if (!page_check_range(h2g(pv), 8, PAGE_WRITE_ORG)) { uint64_t *p =3D __builtin_assume_aligned(pv, 8); return *p; } @@ -191,7 +191,7 @@ static Int128 load_atomic16_or_exit(CPUArchState *env, = uintptr_t ra, void *pv) * another process, because the fallback start_exclusive solution * provides no protection across processes. */ - if (!page_check_range(h2g(p), 16, PAGE_WRITE)) { + if (!page_check_range(h2g(p), 16, PAGE_WRITE_ORG)) { return *p; } #endif --=20 2.34.1