On Wed, Dec 28, 2011 at 05:41:20PM +1300, Alexey Korolev wrote: > Hi, > > There were a number of requests about support of 64bit PCI BAR allocations. > > Also we have observed the issue on guests with older linux version > (2.6.18): if we > have a 64bit BAR allocated within first 4GB, the OS may hang during > start process. > (I guess it is an OS bug, but we need to take care of this). > > This patch addresses these two issues and allows 64bit BARs to be > allocated in ranges > above 4GB. > Patch consists of three parts: > 1. Add new range above 4GB in _CRS table to let Windows 2008 work > properly. Thanks > a lot to Michael S. Triskin for this brilliant idea. > 2. Added new PCI_REGION_TYPE_PREFMEM_64 region type in pciinit and changed > types of variables. > 3. Take care about PCI devices with 64bit BARs on secondary buses. > > Patches have been tested on several configurations which includes > linux 2.6.18 - 3.0 & > windows 2008. Everything works quite well.
Which qemu version did you use?
