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{ "id": 2221280, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2221280/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260409-write_booster-v3-0-dd2f1c0119c8@samsung.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260409-write_booster-v3-0-dd2f1c0119c8@samsung.com>", "list_archive_url": null, "date": "2026-04-09T05:37:44", "name": "[v3,0/5] hw/ufs: Add Write Booster Support on UFS", "submitter": { "id": 93039, "url": "http://patchwork.ozlabs.org/api/1.2/people/93039/?format=api", "name": "Jaemyung Lee", "email": "ldc.jml@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260409-write_booster-v3-0-dd2f1c0119c8@samsung.com/mbox/", "series": [ { "id": 499238, "url": "http://patchwork.ozlabs.org/api/1.2/series/499238/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499238", "date": "2026-04-09T05:37:44", "name": "hw/ufs: Add Write Booster Support on UFS", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/499238/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2221280/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=qoKn2KUI;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIACg712kC/3XMQQ6CMBCF4auQWVtTC1Jw5T0MMaUdYRZQ0qlVQ\n 7i7lb3L/yXvW4ExEDJcihUCJmLyc47yUIAdzTygIJcblFS1rKQWr0AR7733HDGIpmmNrK1x9tx\n C/iwBH/TevVuXeySOPnx2Pqnf+k9KSkjhnNaq70t5aqsrm4mf83C0foJu27Yvn4YutKwAAAA=", "X-Change-ID": "20260407-write_booster-889a06cadc59", "To": "qemu-devel@nongnu.org", "Cc": "Jeuk Kim <jeuk20.kim@samsung.com>, Kevin Wolf <kwolf@redhat.com>,\n Hanna Reitz <hreitz@redhat.com>, qemu-block@nongnu.org,\n Fabiano Rosas <farosas@suse.de>, Laurent Vivier <lvivier@redhat.com>,\n Paolo Bonzini <pbonzini@redhat.com>,\n Jaemyung Lee <jaemyung.lee@samsung.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1775713090; l=1796;\n i=jaemyung.lee@samsung.com; s=20260402; h=from:subject:message-id;\n bh=mjY7/lSHigj6dDK6bqBiBvCSpL1fIp9X6JW1sbVSpK0=;\n b=hP++j+j02YBSjAT4T2RHfxx9Ot33IQPSUR7XiRDWKXjs+DOK7VHRszyD33u2750HYEb/t2Pjl\n rs0WZXSwgwpBeNR91OsHbE8omnNbTA/EhfcU+uxMettS4CowWZpiog2", "X-Developer-Key": "i=jaemyung.lee@samsung.com; a=ed25519;\n pk=bZPd7A/kteUO62FfUM6IrI1LuBPe5QrcqfvsitM1ZjE=", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::631;\n envelope-from=ldc.jml@gmail.com; helo=mail-pl1-x631.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Currently, the QEMU-UFS emulation is implemented based on the JEDEC UFS\n4.0 Specification and does not support the operation related to UFS Extended\nFeatures which is defined with latest UFS Specifications.\n\nThis series modifies the UFS core implementation to align with the JEDEC\nUFS 4.1 Specification[1], and adds a Write Booster UFS Extended Feature\nsupportability.\n\nTested: x86-64 KVM, upstream QEMU with Debian GNU/Linux 10\n\n[1]\nhttps://jedec.org/standards-documents/focus/flash/universal-flash-storage-ufs\n\nSigned-off-by: Jaemyung Lee <jaemyung.lee@samsung.com>\n---\nChanges in v2:\n- Fixed MCQ idle check\n- Added WRITE_6/WRITE_16 handling\n- Fixed WB buffer consume timing\n- Added constraint check\n- Fixed uint64_t casting for unit calculation\n---\nChanges in v3:\n- Fixed constraint check return value\n- Fixed WB buffer consume amount with transfered_len\n- Fixed MCQ idle check:\n - Added NULL exception check\n - Added CQ pending request check\n---\n- Link to v2: https://lore.kernel.org/qemu-devel/20260407-write_booster-v2-0-dd772bb30194@samsung.com\n\n---\nJaemyung Lee (5):\n hw/ufs: Apply UFS 4.1 Specification\n hw/ufs: Modify flag handling operation\n hw/ufs: Add idle operation\n hw/ufs: Add UFS Write Booster Support\n tests/qtest: Add UFS Write Booster QTest\n\n hw/ufs/lu.c | 94 ++++++++\n hw/ufs/ufs.c | 597 +++++++++++++++++++++++++++++++++++++++++++++----\n hw/ufs/ufs.h | 49 ++++\n include/block/ufs.h | 110 ++++++++-\n tests/qtest/ufs-test.c | 176 +++++++++++++++\n 5 files changed, 982 insertions(+), 44 deletions(-)\n---\nbase-commit: b6a7d06213e5d2f7d124d16418bc289c4a8a4b82\nchange-id: 20260407-write_booster-889a06cadc59\n\nBest regards," }