[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] beginnings of allowing more than the basic 80x25 VGA screen resolution

On 4 Jul 2005, at 08:28, Jan Beulich wrote:

Hmm, interesting. I would have hoped such thing would exist, but I
can't see how it could work, since the code affected by
CONFIG_VIDEO_SELECT (which is what in non-guest Linux deals with the
vga= option) doesn't even exist in XenLinux. Further more, since XEN is
a multiboot image, it would require infrastructure to switch back to
real mode for issuing the necessary INT10-s in the guest kernel, which I
think is neither very desirable nor existing.

So I must be missing something, but I'd need a pointer at where I would
have to look for the alternative code.

We could certainly add a way to propagate the mode option through to the vga driver, but is the Linux vga driver really unable to switch modes without bios help? Is there support for a protected-mode vesa/vbe driver instead?

 -- Keir

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.