Glauber Costa wrote:
On Sat, Jan 31, 2009 at 10:19 AM, Bryan McLellan <[email protected]> wrote:
Is there any way to access pv_info from userland? It would be useful
for determining what type of virtualization the machine was running
on.
there are usually cpuid functions reserved for that.
for kvm, you can run function 0x40000000, and if you get
ebx = 0x4b4d564b
ecx = 0x564b4d56
edx = 0x4d
you're running KVM.
Since this is a pretty standard mechanism, it may make sense to include
this signature in /proc/cpuinfo if someone is up to writing a patch. It
could also be useful to expose the PV features mask in cpuinfo too.
Regards,
Anthony Liguori
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