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[2003:cf:574a:7200:8031:10ea:947f:174a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49807bb45ebsm152286045e9.4.2026.08.03.01.30.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2026 01:30:47 -0700 (PDT) From: Alexander Mikhalitsyn To: qemu-devel@nongnu.org Cc: =?UTF-8?q?St=C3=A9phane=20Graber?= , Alexander Mikhalitsyn , Keith Busch , Klaus Jensen , qemu-block@nongnu.org, Jesper Devantier , Alexander Mikhalitsyn Subject: [PATCH v3 0/2] hw/nvme: support online resize Date: Mon, 3 Aug 2026 10:30:44 +0200 Message-ID: <20260803083046.110121-1-alexander@mihalicyn.com> X-Mailer: git-send-email 2.47.3 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=alexander@mihalicyn.com; helo=mail-wm1-x333.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: qemu development 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 From: Alexander Mikhalitsyn Dear friends, This patchset is aimed to support online resize for NVMe emulated device. My approach is simple - I just implement (BlockDevOps *)->resize_cb() callback and ensure that AER notification is fired to all controllers using a namespace that is being resized. Testing. I manually validated this with Debian 13 VM (a resized disk was a root disk) and Windows Server 2022 (a resized disk was a secondary one). Git tree: https://gitlab.com/mihalicyn/qemu/-/commits/nvme-resize Changelog for version 3: - rebased Changelog for version 2: - checkpatch fixes - rebased - CI is green (https://gitlab.com/mihalicyn/qemu/-/pipelines/2602102750) Kind regards, Alex Alexander Mikhalitsyn (2): hw/nvme: initialize ns->subsys for n->namespace hw/nvme: support online resize hw/nvme/ctrl.c | 10 ++++++++ hw/nvme/ns.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++- hw/nvme/nvme.h | 2 ++ 3 files changed, 79 insertions(+), 1 deletion(-) -- 2.47.3