From patchwork Wed Jul 3 08:51:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 13721535 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3F20DC31D97 for ; Wed, 3 Jul 2024 08:52:49 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sOvin-0001Xe-1I; Wed, 03 Jul 2024 04:52:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sOvil-0001XB-2h for qemu-devel@nongnu.org; Wed, 03 Jul 2024 04:52:11 -0400 Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sOvii-00044u-9X for qemu-devel@nongnu.org; Wed, 03 Jul 2024 04:52:10 -0400 Received: by mail-wm1-x32b.google.com with SMTP id 5b1f17b1804b1-42641dec7c3so1446085e9.0 for ; Wed, 03 Jul 2024 01:52:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1719996726; x=1720601526; darn=nongnu.org; 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=GULqliqQH80JFHfX+S6uCfl3unrMvquKhQ3WGcPZsrw=; b=HhFdsZpnEAzrT3kEpRtGisS0iC+u8u0EgSXg+h+PmOkkJzV4AvT2qBFa+ilN0jU9uu FgSlfzAmizsNgJ7bKWWZfwfZ4J+oiErNPal2kfyeuPQxrSfbmPzmhdn8GLD6pcBwFIXO PWtN6tOau6fBPptyF69hrRjwfsVbjuLyYB6dyDDHmID2XDCQoUjypLqiBmySXI2IWMOF wsqjeVoGBGmu9XK2SB0jfHC0e5h6TT8ETXkCZdx+OrN8oxBBYzca/Huwc3X1bTrmy8/W PRRVXDoP9Y52mavQ0VFq5v5ZVjdL+t9a8/BtZOS2CGQ9ddRHGWB2YZHMfilJIcQGIvD+ GmhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719996726; x=1720601526; 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=GULqliqQH80JFHfX+S6uCfl3unrMvquKhQ3WGcPZsrw=; b=CCleKqLacp51AanaxCXd5WJ22UlZD6l6sYi3mtewU2E1dQseE/be3lkzWGNnJVEB5T 3jG06+zigf6gxrZbs4O5pT6H2kRLOxOI2qLb0kv8+llyVYt/HoUFrZdm2VeIDw5aIG2S HbrsZ+/d3SZNS3QIJf376TqAdq7mVhe9bO1N4PAc//2I0mqQgcyq4Z/LeVR1NBxDl6ts DXGjsPKkGplp+CO8PkmnnGmxgtPVhtX7DGqINhlvtoZ1lms3LOSbAASpMRIalImViyt3 RgdkHxPzh6hkcWJnt7jluFQqQanQHKT27IIYmffdVMP5VN97SP2DFTRUtB/tHVprNEju ts6g== X-Gm-Message-State: AOJu0YwLbyjNPIH2NGOxIoEj2h00WJ/fFaJ1nPrFGgLI9Y7YetPejex4 d9ckxWKxkNHofFNYREA6EC4qIvP8NhMoPsnXhbF2N5QXtpmpbTk7XjOVTiFNjfVGy7w4i0fuaA2 s X-Google-Smtp-Source: AGHT+IHzn8r/qR24VgNclBA6yelwvXL2lVDrgiuox7a8hFZRTgMIkMKNKctx5wArl7KJXh0XyysmVQ== X-Received: by 2002:a05:600c:63c8:b0:424:a48a:99ff with SMTP id 5b1f17b1804b1-4257a0257cemr69894585e9.8.1719996726347; Wed, 03 Jul 2024 01:52:06 -0700 (PDT) Received: from m1x-phil.lan ([176.187.220.97]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4256af376easm230227865e9.5.2024.07.03.01.52.04 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 03 Jul 2024 01:52:05 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Marcel Apfelbaum , qemu-block@nongnu.org, Luc Michel , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , =?utf-8?q?Dani?= =?utf-8?q?el_P_=2E_Berrang=C3=A9?= , Bin Meng , Eduardo Habkost , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Yanan Wang Subject: [PATCH v44 2/3] hw/sd/sdcard: Do not store vendor data on block drive (CMD56) Date: Wed, 3 Jul 2024 10:51:47 +0200 Message-ID: <20240703085148.66188-3-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240703085148.66188-1-philmd@linaro.org> References: <20240703085148.66188-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=philmd@linaro.org; helo=mail-wm1-x32b.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=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org "General command" (GEN_CMD, CMD56) is described as: GEN_CMD is the same as the single block read or write commands (CMD24 or CMD17). The difference is that [...] the data block is not a memory payload data but has a vendor specific format and meaning. Thus this block must not be stored overwriting data block on underlying storage drive. Keep it in a dedicated 'vendor_data[]' array. Signed-off-by: Philippe Mathieu-Daudé --- v43: Do not re-use VMSTATE_UNUSED_V (danpb) v44: Use subsection (Luc) --- hw/sd/sd.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 808dc1cea6..000b923c73 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -153,6 +153,8 @@ struct SDState { uint32_t data_offset; size_t data_size; uint8_t data[512]; + uint8_t vendor_data[512]; + qemu_irq readonly_cb; qemu_irq inserted_cb; QEMUTimer *ocr_power_timer; @@ -719,6 +721,7 @@ static void sd_reset(DeviceState *dev) sd->wp_switch = sd->blk ? !blk_is_writable(sd->blk) : false; sd->wp_group_bits = sect; sd->wp_group_bmap = bitmap_new(sd->wp_group_bits); + memset(sd->vendor_data, 0xec, sizeof(sd->vendor_data)); memset(sd->function_group, 0, sizeof(sd->function_group)); sd->erase_start = INVALID_ADDRESS; sd->erase_end = INVALID_ADDRESS; @@ -793,6 +796,16 @@ static const VMStateDescription sd_ocr_vmstate = { }, }; +static const VMStateDescription sd_vendordata_vmstate = { + .name = "sd-card/vendor_data-state", + .version_id = 1, + .minimum_version_id = 1, + .fields = (const VMStateField[]) { + VMSTATE_UINT8_ARRAY(vendor_data, SDState, 512), + VMSTATE_END_OF_LIST() + }, +}; + static int sd_vmstate_pre_load(void *opaque) { SDState *sd = opaque; @@ -840,6 +853,7 @@ static const VMStateDescription sd_vmstate = { }, .subsections = (const VMStateDescription * const []) { &sd_ocr_vmstate, + &sd_vendordata_vmstate, NULL }, }; @@ -2187,9 +2201,8 @@ void sd_write_byte(SDState *sd, uint8_t value) break; case 56: /* CMD56: GEN_CMD */ - sd->data[sd->data_offset ++] = value; - if (sd->data_offset >= sd->blk_len) { - APP_WRITE_BLOCK(sd->data_start, sd->data_offset); + sd->vendor_data[sd->data_offset++] = value; + if (sd->data_offset >= sizeof(sd->vendor_data)) { sd->state = sd_transfer_state; } break; @@ -2261,12 +2274,11 @@ uint8_t sd_read_byte(SDState *sd) break; case 56: /* CMD56: GEN_CMD */ - if (sd->data_offset == 0) - APP_READ_BLOCK(sd->data_start, sd->blk_len); - ret = sd->data[sd->data_offset ++]; + ret = sd->vendor_data[sd->data_offset++]; - if (sd->data_offset >= sd->blk_len) + if (sd->data_offset >= sizeof(sd->vendor_data)) { sd->state = sd_transfer_state; + } break; default: