On Mon, Jan 30, 2012 at 01:55:54PM +0000, julian.pidancet@gmail.com wrote:
From: Julian Pidancet julian.pidancet@citrix.com
This patch enables the VGAHOOKS config option if the BIOS is configured for Xen. In the Xen VGA passthrough case, the option ROM can be extracted from the physical device by hvmloader and pre-deployed for seabios. This patch also allows setting up VGA hooks in case the VGA option ROM is already deployed by hvmloader.
This seems a bit odd - if option roms are deployed, how can seabios reliably find the vga device? Wouldn't it be simpler to just use seabios in non-optionrom-deployed mode? (After all, wouldn't seabios still be able to pull the roms even if hvmloader alread did?)
-Kevin
On Wed, Feb 1, 2012 at 4:04 AM, Kevin O'Connor kevin@koconnor.net wrote:
On Mon, Jan 30, 2012 at 01:55:54PM +0000, julian.pidancet@gmail.com wrote:
From: Julian Pidancet julian.pidancet@citrix.com
This patch enables the VGAHOOKS config option if the BIOS is configured for Xen. In the Xen VGA passthrough case, the option ROM can be extracted from the physical device by hvmloader and pre-deployed for seabios. This patch also allows setting up VGA hooks in case the VGA option ROM is already deployed by hvmloader.
This seems a bit odd - if option roms are deployed, how can seabios reliably find the vga device? Wouldn't it be simpler to just use seabios in non-optionrom-deployed mode? (After all, wouldn't seabios still be able to pull the roms even if hvmloader alread did?)
I think you're right, I just checked the sources of hvmloader in xen-unstable, and it seems the option roms are only pre-deployed when using rombios instead of seabios. So this patch doesn't really make sense after all.
-
Julian Pidancet -
Kevin O'Connor