Il 31/05/2013 04:06, Kevin O'Connor ha scritto: > On Wed, May 29, 2013 at 01:27:24AM -0700, Jordan Justen wrote: >> > The isapc machine with seabios currently requires the BIOS region >> > to be read/write memory rather than read-only memory. >> > >> > KVM currently cannot support the BIOS as a ROM region, but qemu >> > in non-KVM mode can. Based on this, isapc machine currently only >> > works with KVM. >> > >> > To work-around this isapc issue, this change avoids marking the >> > BIOS as readonly for isapc. > How about changing the code to always make the ROM read/write (instead > of doing it only on isapc). Currently, if the rom is marked as > read-only, then SeaBIOS makes it read/write as the first thing it > does. So, making it read-only doesn't really serve any purpose.
I don't think SeaBIOS can rely on the value of the PAM registers when it is started via a CPU reset (INIT), can it? Paolo
