Enable guest use of TSC_ADJUST functionality

This reversion, V4, addresses a couple of issues I missed from Gleb and Marcelo.

Thanks, Will

Will Auld (2):
Add code to track call origin for msr assignment. Enabling IA32_TSC_ADJUST for KVM guest VM support

 arch/x86/include/asm/cpufeature.h |  1 +
 arch/x86/include/asm/kvm_host.h   | 15 ++++++++++---
 arch/x86/include/asm/msr-index.h  |  1 +
 arch/x86/kvm/cpuid.c              |  2 ++
 arch/x86/kvm/cpuid.h              |  8 +++++++
 arch/x86/kvm/svm.c                | 28 ++++++++++++++++++------
 arch/x86/kvm/vmx.c                | 33 ++++++++++++++++++++++------
 arch/x86/kvm/x86.c                | 45 ++++++++++++++++++++++++++++++++-------
 arch/x86/kvm/x86.h                |  2 +-
 9 files changed, 110 insertions(+), 25 deletions(-)

1.8.0.rc0