Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1668730 > unrolled thread

[PATCH 0/2] hyper-v: avoid tsc calibration

Back to article view | Back to linux.kernel

Contents

  [PATCH 0/2] hyper-v: avoid tsc calibration Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-06-19 04:30 +0200

#1668730 — [PATCH 0/2] hyper-v: avoid tsc calibration

TSC calibration on virtual machines is always error prone. It was found
that in nested environments Gen2 instances may get stuck on boot. As
Hyper-V hosts provide us with all the required information we can easily
avoid calibration. This is already done for other hypervisors (KVM,
Vmware).

Vitaly Kuznetsov (2):
  hyper-v: check frequency MSRs presence according to the specification
  hyper-v: read TSC frequency from a synthetic MSR

 arch/x86/include/uapi/asm/hyperv.h | 15 ++++++---------
 arch/x86/kernel/cpu/mshyperv.c     | 18 +++++++++++++++++-
 2 files changed, 23 insertions(+), 10 deletions(-)

-- 
2.9.4

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web