[PATCH v1 0/1] make kvm to determin tsc frequency earlier

[Pavel Tatashin]

Initialize tsc earlier by initializing the KVM clock at the same point in
boot as other paravirtualized clocks.

Here is how this work benefits time stamp output:

1. Current:
https://paste.ubuntu.com/26133428
time keeping starts from line 873, and precise tsc time starts only from
line 916.

2. Early boot time stamps [https://lkml.org/lkml/2017/11/15/925] without
this patch:
https://paste.ubuntu.com/26133441
precise time keeping starts from line 444.

3. This patch plus the early boot time stamps patch series:
https://paste.ubuntu.com/26133523
time keeping starts from line 68.

Pavel Tatashin (1):
  kvm/x86: make kvm to determin tsc frequency earlier

 arch/x86/include/asm/kvm_para.h |  2 +-
 arch/x86/kernel/kvm.c           |  2 ++
 arch/x86/kernel/kvmclock.c      | 67 ++++++++++++++++++++++++++++-------------
 arch/x86/kernel/setup.c         |  6 +---
 4 files changed, 50 insertions(+), 27 deletions(-)

-- 
2.15.1