config DRM_CIRRUS_QEMU | |
tristate "Cirrus driver for QEMU emulated device" | |
depends on DRM && PCI && MMU | |
select DRM_KMS_HELPER | |
select DRM_TTM | |
help | |
This is a KMS driver for emulated cirrus device in qemu. | |
It is *NOT* intended for real cirrus devices. This requires | |
the modesetting userspace X.org driver. | |
Cirrus is obsolete, the hardware was designed in the 90ies | |
and can't keep up with todays needs. More background: | |
https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/ | |
Better alternatives are: | |
- stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+) | |
- qxl (DRM_QXL, qemu -vga qxl, works best with spice) | |
- virtio (DRM_VIRTIO_GPU), qemu -vga virtio) |