On 07/25/2010 07:23 PM, Kevin O'Connor wrote:
On Sun, Jul 25, 2010 at 11:54:20AM +0300, Avi Kivity wrote:
On 07/24/2010 06:45 PM, Kevin O'Connor wrote:
On Mon, Jul 12, 2010 at 04:13:06PM +0300, Avi Kivity wrote:
Does SeaBIOS use big real mode now?
SeaBIOS calls option roms in big real mode. This is required by the
relevant specs.
Can you provide a pointer?
See the PMM spec section 2.2 and section 3.2.4. (Sadly, I can't find
a link to the PMM spec on the web anymore - hopefully you have a
copy.) Also see the PCI Firmware Specification v3.0 - section
5.2.1.9.
Unfortunately, I don't have a copy.
The specs don't require any code addresses to be>64K, but it does
require data access over 64K. I doubt there are many systems that use
a code address>64K, because an interrupt in big real mode still only
stores a 16bit return address - thus an irq (or nmi) in that mode will
basically cause a crash.
Ok. Flat 4G segments happen to accidentally work in kvm-intel, and we
can keep it working.
--
error compiling committee.c: too many arguments to function
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