Il 13/05/2014 17:00, Kevin O'Connor ha scritto:
On Tue, May 13, 2014 at 02:58:29PM +0200, Gerd Hoffmann wrote:
Hi,
Digged out an old patch from the mailing list, to make smm use acpi_pm1a_cnt. This allows to make the acpi pmbase a variable and figure where to place the registers at runtime.
With these preparations in place we can go move acpi pm registers below 0x1000 for new enougth qemu (2.0+). The whole 0x1000 -> 0xffff range is free then on q35.
The series looks okay to me.
I am a little leery about the way patch one accesses the f-segment while in SMM mode. I do the same in my 32bit driver test series - see: https://github.com/KevinOConnor/seabios/commits/testing-32bit-drivers . But, I'm leery about making that kind of change days before tagging a new release.
I think that code can be removed altogether, it should be handled by QEMU. See the series I just posted.
Paolo