Re: [libvirt] [PATCH] qemu: detect multi-head qxl via more than version check
On Wed, Mar 13, 2013 at 18:48:46 -0600, Eric Blake wrote:
Multi-head QXL support is so useful that distros have started to
backport it to qemu earlier than 1.2. After discussion with
Alon Levy, we determined that the existence of the qxl-vga.surfaces
property is a reliable indicator of whether '-device qxl-vga' works,
or whether we have to stick to the older '-vga qxl'. I'm leaving
in the existing check for QEMU_CAPS_DEVICE_VIDEO_PRIMARY tied to
qemu 1.2 and newer (in case qemu is built without qxl support),
So in other words, QEMU_CAPS_DEVICE_VIDEO_PRIMARY will be set iff qemu
version is 1.2 or newer or qxl-vga.surfaces exists. That seems fine.
ACK
Jirka