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[44.242.66.180]) by smtp.gmail.com with ESMTPSA id cd8sm843857ejb.0.2021.02.20.00.58.22 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 20 Feb 2021 00:58:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=10SQjvq05st27/nX5N7/KLZqTBX2ZldzzJuVKpUXvYU=; b=Z6VUHhzmL/6Wv/XrSEjVPy18cPEP+p/z0ISdWPcOQIC/f6nLxlo2fhBxhDjF16lAf7 QfvITk8hyG8fWBeqko/ui8nYWGetdpUfeEVO3zKCTZWCs/8Qw/FqAcufhgNrTpKBHBSw 9svPtAR+vB65KKgMr9fS+/fT3zbFMVKGHFb9yvnbK0GCzVgIegmzrFrgl6DF7anVhNRt opTGQrEzKZ+ZZh8U4LGaEIEhz7i0TO5m+MnK0iqOoOoEMHErwe5ERtMxCRXC2tNLDBMT TuLu6LI8XTYp54ckhkEKOzWSZvWDiM8vm7ByS5NIWkUWpsS2iA5yCf2o/68+rJekzz1y m7Yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=10SQjvq05st27/nX5N7/KLZqTBX2ZldzzJuVKpUXvYU=; b=kml10FMsJH9gubWm66nyVgDidzFzuU8jFYn/uSi4uggvOJQnZq2XJ7aboqBytEiwjX OuVgvsrdZA5Aiu3R3UN0mGhQCGizupshCRhE4xI7+KcnKP4ev4B+bdf01E0GhsGYpcdq /SOsLi9Z2+lsleB42CEQrRkRGWS8XE42nzTi4YxVtQvuKQyH0Jb7MdRD0mDn9+8kfQHw h1sb0qwhj7pbXtIhK06WAwtgPlBHfkWWP98ekCyjfxbgP7GgRanskqa31CZcGDTVGJ5r iXSORjdthceHtxAP0uIK4PaWxkL5OPRWZf1ZXHU0RqL5ysu1SFuMN9mfRqhUCBaNDIE+ Y7OQ== X-Gm-Message-State: AOAM531vY6CwVLeaByVlfpeDeOHps8A2cWNHTalTAW6LlMRWgijnb0nL Pb7Li8RR84dT2heXhFov4/A= X-Google-Smtp-Source: ABdhPJwyFtN9Ycwonx6ASIToNl2XaPTuATaxSpeqhZRrE5gaoAqEh6RjoBObcrbTc5daAv/SO5fg0A== X-Received: by 2002:a05:6402:617:: with SMTP id n23mr13375560edv.257.1613811505778; Sat, 20 Feb 2021 00:58:25 -0800 (PST) From: Bin Meng To: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v3] hw/sd: sd: Actually perform the erase operation Date: Sat, 20 Feb 2021 16:58:13 +0800 Message-Id: <1613811493-58815-1-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.7.4 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::52e; envelope-from=bmeng.cn@gmail.com; helo=mail-ed1-x52e.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, FREEMAIL_FROM=0.001, 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: Bin Meng Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Bin Meng At present the sd_erase() does not erase the requested range of card data to 0xFFs. Let's make the erase operation actually happen. Signed-off-by: Bin Meng Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- Changes in v3: - fix the skip erase logic for SDSC cards Changes in v2: - honor the write protection bits for SDSC cards hw/sd/sd.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 8b397ef..f52028c 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -762,10 +762,12 @@ static void sd_blk_write(SDState *sd, uint64_t addr, = uint32_t len) =20 static void sd_erase(SDState *sd) { - int i; uint64_t erase_start =3D sd->erase_start; uint64_t erase_end =3D sd->erase_end; bool sdsc =3D true; + uint64_t wpnum; + uint64_t erase_addr; + int erase_len =3D 1 << HWBLOCK_SHIFT; =20 trace_sdcard_erase(sd->erase_start, sd->erase_end); if (sd->erase_start =3D=3D INVALID_ADDRESS @@ -794,17 +796,19 @@ static void sd_erase(SDState *sd) sd->erase_end =3D INVALID_ADDRESS; sd->csd[14] |=3D 0x40; =20 - /* Only SDSC cards support write protect groups */ - if (sdsc) { - erase_start =3D sd_addr_to_wpnum(erase_start); - erase_end =3D sd_addr_to_wpnum(erase_end); - - for (i =3D erase_start; i <=3D erase_end; i++) { - assert(i < sd->wpgrps_size); - if (test_bit(i, sd->wp_groups)) { + memset(sd->data, 0xff, erase_len); + for (erase_addr =3D erase_start; erase_addr <=3D erase_end; + erase_addr +=3D erase_len) { + if (sdsc) { + /* Only SDSC cards support write protect groups */ + wpnum =3D sd_addr_to_wpnum(erase_addr); + assert(wpnum < sd->wpgrps_size); + if (test_bit(wpnum, sd->wp_groups)) { sd->card_status |=3D WP_ERASE_SKIP; + continue; } } + BLK_WRITE_BLOCK(erase_addr, erase_len); } } =20 --=20 2.7.4