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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37cd56e6547sm12243771f8f.58.2024.10.01.09.39.23 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2024 09:39:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1727800764; x=1728405564; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=vx5tPl8mZ4Syxp4bwv318p0goxHnVxqpE0gfsca6UPE=; b=mwuhm+ODcwXmP54+2xl3t6vV6AQOfk0oaffhDRTb7aXgh75L5qsvBQ2RqH+Gv4r1tQ YqqQoffTPJ+w6Jm6cJNvLAOhD7kiEq6pGViXXDuaymfZDYxejsOFPZBKLdglegbP2iZh 1UQyADFEH452rseg6/0hlO32wp9WZRW11qZKtylGL3mcR3M4U134S3GyGM3StUtHh8jc CborEICenQ9PWMuodbnxeSalUs9BjBzuhI81lDEjy3MYq/5dQabyyTQsSwG9MTZa7Wcl LmoKGxfDAwx6ZmxfuJ+vou4ClEW3uRajTM6bRWwZaVtSN0/LAyoGlb5Ur+0pMB7mF1vR gfdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727800764; x=1728405564; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vx5tPl8mZ4Syxp4bwv318p0goxHnVxqpE0gfsca6UPE=; b=ONKkL8LbQBYDMiaApv0g+YTebODDZFcLVFdObVzfG2SOfeYZ1kQUxuys39lGj+cEuv cBNoftHomdMGJzQzvuMiKa9iVYnFhiewaS6U4yWl6hf1UGQJTWGOGW8yUGXy1AQFbxIq NcyZVGRCdpUyAnusNfhtVnNrRprjpORAIdxQjcbQmT0rNLrmlMp8ZwddwhtGhw5Vb7VS e6z/5I6DN93+KySX3Bm3bGE9hV4CM6cJS/ROdxIIEE63gf2U7drGzwDbrGBonlZSBhP2 xrEeCt2f/doiZHR0EuiW8aZEToK5OY7S4JmszipC8NbtFfBQjn4G20KAreE4VwAA2AQD 9wNw== X-Gm-Message-State: AOJu0YwUzkKGA/dIe9jqtKzzTRDad40OmQI2D1wAAXiGaJGdGaGZxjQW IoSDMNXKx8MBAHJ2qjvm+W2wbPNGApd3TYnxjsYeYXSHLXrJPLfy9E1jDamG81W3A0CWgt4cP13 1 X-Google-Smtp-Source: AGHT+IGlIeJTH/CsGaYcx3vEnpDaI1y4rPd+PYOFMLgb04ELp67rwqB44SvvwFzJoVYMvzKa34XW3A== X-Received: by 2002:adf:a3c1:0:b0:37c:c9ab:e641 with SMTP id ffacd0b85a97d-37cfb823aeemr189070f8f.0.1727800763657; Tue, 01 Oct 2024 09:39:23 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 07/54] hw/sd/sdcard: Fix handling of disabled boot partitions Date: Tue, 1 Oct 2024 17:38:31 +0100 Message-Id: <20241001163918.1275441-8-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241001163918.1275441-1-peter.maydell@linaro.org> References: <20241001163918.1275441-1-peter.maydell@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=2a00:1450:4864:20::32f; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32f.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: , 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: 1727801543056116600 Content-Type: text/plain; charset="utf-8" From: Jan Luebbe The enable bits in the EXT_CSD_PART_CONFIG ext_csd register do *not* specify whether the boot partitions exist, but whether they are enabled for booting. Existence of the boot partitions is specified by a EXT_CSD_BOOT_MULT !=3D 0. Currently, in the case of boot-partition-size=3D1M and boot-config=3D0, Linux detects boot partitions of 1M. But as sd_bootpart_offset always returns 0, all reads/writes are mapped to the same offset in the backing file. Fix this bug by calculating the offset independent of which partition is enabled for booting. This bug is unlikely to affect many users with QEMU's current set of boards, because only aspeed sets boot-partition-size, and it also sets boot-config to 8. So to run into this a user would have to manually mark the boot partition non-booting from within the guest. Cc: qemu-stable@nongnu.org Signed-off-by: Jan Luebbe Message-id: 20240906164834.130257-1-jlu@pengutronix.de Reviewed-by: Peter Maydell [PMM: added note to commit message about effects of bug] Signed-off-by: Peter Maydell --- hw/sd/sd.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 2dd7a8217cb..a5d2d929a8a 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -774,19 +774,12 @@ static uint32_t sd_blk_len(SDState *sd) */ static uint32_t sd_bootpart_offset(SDState *sd) { - bool partitions_enabled; unsigned partition_access; =20 if (!sd->boot_part_size || !sd_is_emmc(sd)) { return 0; } =20 - partitions_enabled =3D sd->ext_csd[EXT_CSD_PART_CONFIG] - & EXT_CSD_PART_CONFIG_EN_MASK; - if (!partitions_enabled) { - return 0; - } - partition_access =3D sd->ext_csd[EXT_CSD_PART_CONFIG] & EXT_CSD_PART_CONFIG_ACC_MASK; switch (partition_access) { --=20 2.34.1