On 05/02/2012 06:46 PM, Gerd Hoffmann wrote: > On 05/02/12 17:31, Avi Kivity wrote: > > On 05/02/2012 05:02 PM, Gerd Hoffmann wrote: > >> This patch adds a address space hole for 64bit PCI ressources. > >> It starts at 0x8000000000 (512 GB) and ends at 0x10000000000 (1 TB), > >> thus has 512 GB in size. This matches what the seabios is doing > >> (latest master branch). > > > > We should communicate this to seabios via fwcfg > > A dsdt entry is needed for the pci64 window (see > http://code.coreboot.org/p/seabios/source/commit/482a020ec25f4cec655ddcb16b67c6f38b0844c0/), > which makes it non-trivial to turn this into a runtime option ...
It's a function, isn't it? So all you need is a ASL driver for fwcfg and an If(). > > It should also only apply to -M old. > > Is this the only reason you want this be runtime-switchable? No. The BIOS and qemu shouldn't be making too many assumptions. Certainly for Q35 we'd have the bios program qemu for the 64 bit hole. -- error compiling committee.c: too many arguments to function
