On Thu, May 26, 2011 at 04:13:37PM +0100, Ian Campbell wrote:
On Tue, 2011-05-24 at 22:44 -0400, Kevin O'Connor wrote:
On Tue, May 24, 2011 at 12:02:07PM +0100, Ian Campbell wrote:
Would that involve pulling a bunch of mainboard specific stuff from coreboot into SeaBIOS?
The idea - when it was last raised - was to provide raw info in a coreboot specific manor (via the "coreboot tables"), and then have SeaBIOS populate ACPI/SMBIOS/MPTable/etc. from that info. It was never pursued.
Speaking of coreboot tables... I also need to pass some start of day info into seabios (ACPI tables, e820 etc). Currently I just used a little ad-hoc data structure at a known physical address but I wonder if perhaps I should/could reuse the coreboot table datastructures? They are existing and well defined and I suppose they are pretty static, but I don't want to add any additional compatibility burden if you guys would rather avoid it.
Will Xen support the fw_cfg interface? If so, passing this info should be possible through that interface. Another thing to consider would be if coreboot+SeaBIOS in place of hvmloader would be a fit. (I don't have a good feel for what hvmloader does to judge that.)
Using the coreboot tables in Xen seems a bit odd, but I can't say it would cause a problem.
-Kevin