Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-22 Thread Dan Kenigsberg
On Thu, Nov 22, 2007 at 10:12:04AM +1030, Mike Lampard wrote: On Wed, 21 Nov 2007 09:36:31 pm Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-22 Thread Mike Lampard
On Thu, 22 Nov 2007 11:31:18 pm Dan Kenigsberg wrote: On Thu, Nov 22, 2007 at 10:12:04AM +1030, Mike Lampard wrote: On Wed, 21 Nov 2007 09:36:31 pm Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-22 Thread Avi Kivity
Mike Lampard wrote: With current kvm-git (commit 51727a110220681f6f43b005d069e28c58f5d151) (userspace is current to commit 6a385c9539f9746d7ff51ef34c064c3eba86448b) and the userspace portion of this patch I cannot boot a 64 bit guest (Mandriva 2008 x64) on my AMD x2 without -cpu host. The

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-22 Thread Dan Kenigsberg
On Thu, Nov 22, 2007 at 11:50:14PM +1030, Mike Lampard wrote: On Thu, 22 Nov 2007 11:31:18 pm Dan Kenigsberg wrote: On Thu, Nov 22, 2007 at 10:12:04AM +1030, Mike Lampard wrote: On Wed, 21 Nov 2007 09:36:31 pm Dan Kenigsberg wrote: These patches expose host CPU features (that are known

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-22 Thread Mike Lampard
On Fri, 23 Nov 2007 12:00:00 am Avi Kivity wrote: Mike Lampard wrote: With current kvm-git (commit 51727a110220681f6f43b005d069e28c58f5d151) (userspace is current to commit 6a385c9539f9746d7ff51ef34c064c3eba86448b) and the userspace portion of this patch I cannot boot a 64 bit guest

[kvm-devel] [RFC] Expose host cpuid to guest

2007-11-21 Thread Dan Kenigsberg
These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on its host. The kernel-space patch adds KVM_GET_SUPPORTED_CPUID ioctl to obtain the table of cpuid functions supported by

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-21 Thread Amit Shah
* Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on its host. The kernel-space patch adds KVM_GET_SUPPORTED_CPUID ioctl to obtain the table of

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-21 Thread Avi Kivity
Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on its host. The kernel-space patch adds KVM_GET_SUPPORTED_CPUID ioctl to obtain the table of

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-21 Thread Dan Kenigsberg
On Wed, Nov 21, 2007 at 01:52:15PM +0200, Avi Kivity wrote: Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on its host. The kernel-space patch

Re: [kvm-devel] [RFC] Expose host cpuid to guest

2007-11-21 Thread Mike Lampard
On Wed, 21 Nov 2007 09:36:31 pm Dan Kenigsberg wrote: These patches expose host CPU features (that are known to work under KVM) to guests. It makes a couple of benchmarks run faster, and generally gives kvm's user better info on its host. The kernel-space patch adds KVM_GET_SUPPORTED_CPUID