> > X wants bang directly on the Hardware. Try "X -scanpci" in domain 0,
> > most likely you'll see the hidden gfx card listed there.
>
> "X -scanpci" silently exits in every environment I tried, except in
> domain 1 where it fails with "xf86EnableIOPorts: Failed to set IOPL for
> I/O". Perhaps I'm missing something?
Hmm, strange. Works fine here, both on the bare metal and within domain
0. xorg 6.8.2.
Failure in domain 1 isn't surprising as it can't access the hardware
directly.
> > X.org has several ways of accessing the PCI bus, you can play with
> > that using the "scanpci" utility. "OS config" (-O switch for scanpci)
> > should in theory use /proc/bus/pci, work fine without direct hardware
> > access enabled and list the gfx card in the domain you've assigned it
> > to. In practice it doesn't, scanpci refuses to work without iopl
> > access and also doesn't use /proc/bus/pci due to a bug. It should
> > have improved in x.org tree, cvs HEAD, because I bugged the suse x.org
> > guy to look into this because of the uml issues mentioned above.
> > Havn't tested that recently though.
>
> In domain 0 with my graphics card hidden, passing "-O" to the scanpci
> binary or "-H 1" to lspci adds 3 devices to the output - the VGA card,
> AGP bridge and a SMBus device.
Well, that's exactly the scanpci bug mentioned. With "-O" it *should*
use /proc/bus/pci (and thus list the same devices lspci lists without
"-H 1"). But it doesn't :-/
> In domain 1 both binaries fail reporting I/O port problems.
That's the other issue. Both refuse to work without iopl, even if they
don't need it, thus fail to work in domain-1.
> Guess I'll have to wait to try these upcoming X fixes ...
Well, as mentioned it *should* be fixed in the X.org cvs now (but it was
checked in after the 6.8.2 release), so you could try building a fresh
checkout and see if that works better. I hope it does, but havn't
verified it yet ...
Gerd
--
#define printk(args...) fprintf(stderr, ## args)
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
Home