>>> On 12.11.14 at 11:01, <malcolm.cross...@citrix.com> wrote: > As for the CRS regions: These typically describe the BIOS set limits in > hardware configuration for the MMIO hole itself. On single socket > systems anything which isn't RAM or another predefined region decodes to > MMIO. This is probably why Jan's Dell system has a CRS region which > covers the entire address space. > > On multi socket systems the CRS is very important because the chipset is > configured to only decode certain regions to the PCI express ports, if > you use an address out side of those regions then accessing that address > will go "nowhere" and the machine will crash.
Don't you mean multi-node instead of multi-socket here? Since what matters is how the I/O subsystem is organized; the CPU topology is pretty uninteresting for this. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
