[SeaBIOS] [PATCH] acpi: fix irq 8 ressource conflict

[Kevin O'Connor]

On Wed, Dec 05, 2012 at 01:18:48PM -0500, Jason Baron wrote:
> On Wed, Dec 05, 2012 at 10:13:57AM +0100, Gerd Hoffmann wrote:
> > Both hpet and rtc have irq 8 in their ressources, making windows unhappy
> > because of the conflict.  Fix this by making rtc check whenever the hpet
> > is present, and claim irq 8 only in case it isn't.  So rtc gets irq 8
> > only in case you start qemu with the -no-hpet switch.
> > 
> > Verified working in both linux (check pnp boot messages) and windows
> > (check rtc ressources in device manager) guests.
> > 
> 
> Resolves the Windows 7 RTC resource conflict on Q35 as well.
> 
> However, Windows XP continues to blue screen on boot as I reported, and
> Brad also posted (for both piix and q35).

Looks like a regression caused by
d9f5cdbdf55d61aef9a1a534d9123ef734427478 - I'll revert that patch if
no fix is found.

-Kevin