* windows vista enterpise in KVM and multi-core....
@ 2010-12-01 19:27 Erik Brakkee
2010-12-01 20:34 ` Jernej Simončič
0 siblings, 1 reply; 2+ messages in thread
From: Erik Brakkee @ 2010-12-01 19:27 UTC (permalink / raw)
To: kvm
Hi all,
I got KVM to run a windows vista enterprise installation. The problem
that I am seeing now is that windows vista is seeing only two processors
when I am in fact passing 8 (quad core hyperthreading). The issue seems
to be that the 8 virtual CPUs on my single physical CPU appear as 8
distinct processors on windows vista enterprise and that edition is
limited to two physical processors (see for instance
http://en.wikipedia.org/wiki/Windows_Vista_editions#Comparison_chart).
Is there a way in which I can pass the 8 virtual CPUs to the vista image
in such a way that they appear as one CPU with 8 cores?
Cheers
Erik
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: windows vista enterpise in KVM and multi-core....
2010-12-01 19:27 windows vista enterpise in KVM and multi-core Erik Brakkee
@ 2010-12-01 20:34 ` Jernej Simončič
0 siblings, 0 replies; 2+ messages in thread
From: Jernej Simončič @ 2010-12-01 20:34 UTC (permalink / raw)
To: Erik Brakkee on [KVM]
On Wednesday, December 1, 2010, 20:27:00, Erik Brakkee wrote:
> Is there a way in which I can pass the 8 virtual CPUs to the vista image
> in such a way that they appear as one CPU with 8 cores?
From the man page:
-smp n[,cores=cores][,threads=threads][,sockets=sockets][,maxcpus=maxcpus]
Simulate an SMP system with n CPUs. On the PC target, up to 255
CPUs are supported. On Sparc32 target, Linux limits the number of
usable CPUs to 4. For the PC target, the number of cores per
socket, the number of threads per cores and the total number of
sockets can be specified. Missing values will be computed. If any
on the three values is given, the total number of CPUs n can be
omitted. maxcpus specifies the maximum number of hotpluggable
CPUs.
Basically, you want something like -smp 8,cores=8
--
< Jernej Simončič ><><><><>< http://eternallybored.org/ >
The more ridiculous a belief system, the higher the probability of its success.
-- Bartz's Law of Hokey Horsepuckery
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2010-12-01 19:27 windows vista enterpise in KVM and multi-core Erik Brakkee
2010-12-01 20:34 ` Jernej Simončič
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