Re: KVM cpu limitations

2011-08-09 Thread Avi Kivity
On 08/08/2011 10:18 PM, John Paul Walters wrote: On Jul 21, 2011, at 2:10 AM, Avi Kivity wrote: On 07/21/2011 02:20 AM, John Paul Walters wrote: Hi, We have a 256 core SGI Ultraviolet machine running RHEL 6.1 with qemu-kvm 0.13, and we'd like to be able to start large guest VMs of up to

Re: KVM cpu limitations

2011-08-09 Thread John Paul Walters
On Aug 9, 2011, at 5:13 AM, Avi Kivity wrote: On 08/08/2011 10:18 PM, John Paul Walters wrote: On Jul 21, 2011, at 2:10 AM, Avi Kivity wrote: On 07/21/2011 02:20 AM, John Paul Walters wrote: Hi, We have a 256 core SGI Ultraviolet machine running RHEL 6.1 with qemu-kvm 0.13, and

Re: KVM cpu limitations

2011-08-09 Thread Kevin O'Connor
On Tue, Aug 09, 2011 at 02:32:02PM -0400, John Paul Walters wrote: I've enabled debugging in seabios (#define DEBUG_BIOS) and get the output below. Note that with the help of folks in the KVM irc channel I'm able to start a 254 core instance using the KVM tool, so the problem seems to be

Re: KVM cpu limitations

2011-08-08 Thread John Paul Walters
On Jul 21, 2011, at 2:10 AM, Avi Kivity wrote: On 07/21/2011 02:20 AM, John Paul Walters wrote: Hi, We have a 256 core SGI Ultraviolet machine running RHEL 6.1 with qemu-kvm 0.13, and we'd like to be able to start large guest VMs of up to 256 cores. I see that x86 guests are currently