Re: [libvirt] [PATCH v2 3/7] util: Add virHostCPUGetTscInfo

On a KVM x86_64 host which supports invariant TSC this function can be used to detect the TSC frequency and the availability of TSC scaling. The magic MSR numbers required to check if VMX scaling is supported on the host are documented in Volume 3 of the Intel® 64 and IA-32 Architectures Software Developer’s Manual. Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com&gt; --- src/util/virhostcpu.c | 71 +++++++++++++++++++++++++++++++++++++++++++ src/util/virhostcpu.h | 11 +++++++ 2 files changed, 82 insertions(+)