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Mon, 09 Mar 2026 14:49:37 -0700 (PDT) Received: from 192.168.0.29 ([2804:14d:4c71:86dd:4cc9:ee1b:bd8d:dbab]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2be4f96f25bsm10519495eec.28.2026.03.09.14.49.35 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 09 Mar 2026 14:49:37 -0700 (PDT) From: Lucas Amaral To: qemu-devel@nongnu.org Cc: alex.bennee@linaro.org, dmitry.osipenko@collabora.com, Lucas Amaral Subject: [PATCH 1/3] include/standard-headers: add VIRTIO_GPU_F_BLOB_ALIGNMENT Date: Mon, 9 Mar 2026 18:49:28 -0300 Message-ID: <20260309214930.92616-2-lucaaamaral@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260309214930.92616-1-lucaaamaral@gmail.com> References: <20260309214930.92616-1-lucaaamaral@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::132d; envelope-from=lucaaamaral@gmail.com; helo=mail-dy1-x132d.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, FSL_HELO_BARE_IP_2=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-Mailman-Approved-At: Mon, 09 Mar 2026 18:16:41 -0400 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 Define VIRTIO_GPU_F_BLOB_ALIGNMENT (feature bit 5) per the OASIS virtio specification and add the blob_alignment field to struct virtio_gpu_config. This allows the host to communicate its memory alignment requirement to the guest via the device configuration space. Header-only change, no functional impact. Signed-off-by: Lucas Amaral --- include/standard-headers/linux/virtio_gpu.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/standard-headers/linux/virtio_gpu.h b/include/standard-headers/linux/virtio_gpu.h index 00cd3f0..252704e 100644 --- a/include/standard-headers/linux/virtio_gpu.h +++ b/include/standard-headers/linux/virtio_gpu.h @@ -64,6 +64,11 @@ * context_init and multiple timelines */ #define VIRTIO_GPU_F_CONTEXT_INIT 4 +/* + * VIRTIO_GPU_F_BLOB_ALIGNMENT: device advertises blob_alignment + * in virtio_gpu_config (OASIS virtio-spec feature bit 5) + */ +#define VIRTIO_GPU_F_BLOB_ALIGNMENT 5 enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -365,6 +370,7 @@ struct virtio_gpu_config { uint32_t events_clear; uint32_t num_scanouts; uint32_t num_capsets; + uint32_t blob_alignment; }; /* simple formats for fbcon/X use */ -- 2.52.0