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This driver is intended to be used by mesa virgl Gallium on the guest. virtio-gpu is enabled by adding "-device virtio-gpu-pci" on the qemu command line. It's detected by lspci and dmesg log: $ lspci 00:01.0 Display controller: Red Hat, Inc. Virtio GPU (rev 01) $ dmesg virtio-pci 0000:00:01.0: enabling device (0000 -> 0002) [drm] pci: virtio-gpu-pci detected at 0000:00:01.0 [drm] virgl 3d acceleration not supported by host [drm] EDID support available. [TTM] Zone kernel: Available graphics memory: 51876 KiB [TTM] Initializing pool allocator [TTM] Initializing DMA pool allocator [drm] number of scanouts: 1 [drm] number of cap sets: 0 [drm] Initialized virtio_gpu 0.1.0 0 for virtio2 on minor 0 The framebuffer interface fb0 is now present in /dev $ ls /dev/fb* /dev/fb0 See: https://www.kraxel.org/blog/2019/09/display-devices-in-qemu/ https://at.projects.genivi.org/wiki/display/WIK4/GENIVI+Technical+Summit+Session+Content+2018?preview=%2F28412356%2F28412481%2F2018-10-11_GeniviBangalorTechSummit_Virtio_GPU.pdf Signed-off-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches