[Xorg] The big multiconsole nasty
eich at pdx.freedesktop.org
Mon Jul 12 05:33:10 PDT 2004
Alan Cox writes:
> On Llu, 2004-07-05 at 17:27, Jon Smirl wrote:
> > But now we end up building everything twice on Linux since fbdev needs
> > all of these things too. Then we have to spend time making the X and
> > fbdev versions play nice together. Plus, X's PCI bus manipulations are
> > in direct conflict with the Linux kernel.
> The more can be pushed to user space the easier that gets. BTW I've been
> looking at the PCI issue and there seems to be another lurking horror
> which could cause corruption on big AMD64 boxes and in some other cases.
> The BIOS emulation stuff (unless I've missed something
> here which is possible as its a first scan) doesn't seem to revector
> BIOS PCI conf1 access attempts via the kernel pci interface.
It does for 32bit accesses however not for 8 and 16bit ones.
So far this hasn't been a problem but you never know what those
BIOS guys come up with...
Also we don't catch conf2 access attempts - but so far I havn't
seen a BIOS that does these.
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