On 2014/8/21 21:42, Kevin O'Connor wrote:
On Thu, Aug 21, 2014 at 05:23:41PM +0800, zhanghailiang wrote:
If we start Windows 2008 R2 DataCenter with number of cpu less than 8, The system will use APIC Flat Logical destination mode as default configuration, Which has an upper limit of 8 CPUs.
The fault is that VM can not show all processors within Task Manager if we hot-add cpus when the number of cpus in VM extends the limit of 8.
If we use cluster destination model, the problem will be solved.
Thanks. However, recent versions of QEMU provide the ACPI tables to SeaBIOS, and SeaBIOS no longer uses its ACPI generation code on these QEMU versions. Instead of updating SeaBIOS, you should send an equivalent patch to QEMU.
I have sent such a patch to qemu community.:)
The first patch looks good though.