[SeaBIOS] [PATCH 0/5] pci: 64bit support
kevin at koconnor.net
Wed Feb 22 01:35:26 CET 2012
On Tue, Feb 21, 2012 at 09:25:58AM +0100, Gerd Hoffmann wrote:
> On 02/16/12 18:21, Gerd Hoffmann wrote:
> > Hi,
> > The effort to add support for 64bit pci bars to qemu seems to have
> > stalled somehow. Lets resume it ;)
> > Here is a patch collection, largely rewritten from scratch, which
> > improves seabios 64bit support. One big patch (#3) adds 64bit math
> > everythere. The other big patch (#5) adds support for ressource
> > allocation above 4G. The remaining patches carry bugfixes and little
> > bits such as support for printing 64bit hex numbers.
> > cheers,
> > Gerd
I haven't really had a chance to review it. Initial thoughts were -
on patch 1, I'm not sure how that will impact stack usage which is
quite tight when running in 16bit mode; patch 5 - seems incomplete if
it doesn't handle bridges properly. I didn't fully understand patch
5, but that's likely just due to lack of time to look at it.
BTW, what's the use case for 64bit PCI today?
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