Re: [Xen-devel] [PATCH v4 0/6] save/restore on Xen

[Paolo Bonzini <pbonzini@xxxxxxxxxx>]

On 01/24/2012 12:10 PM, Avi Kivity wrote:
> > But viewing RAM as just another device, having Xen only restore a
> > subset of devices should be a reasonable thing to do moving forward.
> > The main problem here I believe is that we have part of the VGA Bios
> > functionality in the hardware emulation.
> Doesn't the main BIOS clear the screen first thing at boot?  Not even
> sure the reset is needed.
Clearing the screen should only write to the RAM at 0xB8000 (and perhaps 
0xA0000 since IIRC it's where text-mode fonts lie).  The option ROM 
cannot even assume that the main BIOS knows about the VESA framebuffer, 
can it?
Paolo

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel