[SeaBIOS] SeaBIOS causing Xen HVM VCPU Triple fault
ijc at hellion.org.uk
Thu Feb 6 09:36:52 CET 2014
(adding xen-devel too)
On Thu, 2014-02-06 at 09:31 +0100, Gerd Hoffmann wrote:
> > commit e144bb7af49ca8756b7222a75811f3b85b0bc1f5
> > Author: Gerd Hoffmann <kraxel at redhat.com>
> > Date: Mon Jun 3 16:30:18 2013 +0200
> > usb: add xhci support
> > $subject says all. Support for usb3 streams is not implemented yet,
> > otherwise it is fully functional. Tested all usb devices supported
> > by qemu (keyboard, storage, usb hubs), except for usb attached scsi
> > in usb3 mode (which needs streams).
> > Tested on qemu only, tagged with QEMU_HARDWARE because of that.
> > Testing with physical hardware to be done.
> That commit made seabios size (default qemu config, gcc 4.7+) jump from
> 128k to 256k in size because the code didn't fit into 128k any more.
> Most likely the failure isn't related to xhci at all, but to the size
> You can try to turn off some features (hardware support) you don't need
> to make the bios image smaller. 1.7.4 also has a config option to
> explicitly set the image size you want.
> IIRC xen combines seabios and hvmloader into a single 256k image
> somehow, so it might make sense to set the seabios image size to
> something between 128k and 256k. But better ask the xen people for
> details here.
I think this was fixed in Xen with
I suppose this should be backported to the 4.3.x stable branch.
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