On Sun, Oct 13, 2013 at 03:31:23PM +0300, Michael S. Tsirkin wrote: > On Sun, Oct 13, 2013 at 02:13:44PM +0200, Igor Mammedov wrote: > > Currently 64-bit PCI BARs are unconditionally mapped by BIOS right > > over 4G + RamSizeOver4G location, which doesn't allow to reserve > > extra space before 64-bit PCI window. For memory hotplug an extra > > RAM space might be reserved after present 64-bit RAM end and BIOS > > should map 64-bit PCI BARs after it. > > > > Introduce "etc/pcimem64-start" romfile to provide BIOS a hint > > where it should start mapping of 64-bit PCI BARs. If romfile is > > missing, BIOS reverts to legacy behavior and starts mapping right > > after high memory. > > > > Signed-off-by: Igor Mammedov <imamm...@redhat.com> > > --- > > v2: > > * place 64-bit window behind high RAM end if "etc/pcimem64-start" > > points below it. > > Hmm I had an alternative suggestion of passing smbios > tables in from QEMU (seabios already has a mechanism for this).
Irrespective of this discussion, I do think the SMBIOS tables should be passed in from QEMU. -Kevin
