On Wed, Aug 04, 2010 at 06:01:54PM +0300, Gleb Natapov wrote: > On Wed, Aug 04, 2010 at 09:50:55AM -0500, Anthony Liguori wrote: > > On 08/04/2010 09:38 AM, Gleb Natapov wrote: > > >ROM does not muck with the e820. It uses PMM to allocate memory and the > > >memory it gets is marked as reserved in e820 map.
Every ROM is implemented differently - there's no way to really know what they'll do. > > PMM allocations are only valid during the init function's execution. > > It's intention is to enable the use of scratch memory to decompress > > or otherwise modify the ROM to shrink its size. > > > Hm, may be. I read seabios code differently, but may be I misread it. There is a PCIv3 extension to PMM which supports long term memory allocations. SeaBIOS does implement this. The base PMM spec though only supports memory allocations during the POST phase. -Kevin -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
