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Date: Mon, 19 Jun 2017 10:23:36 +0800 From: Vitaly Kuznetsov <vkuznets@...hat.com> To: devel@...uxdriverproject.org Cc: linux-kernel@...r.kernel.org, x86@...nel.org, Stephen Hemminger <sthemmin@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, "K. Y. Srinivasan" <kys@...rosoft.com>, Jork Loeser <jloeser@...rosoft.com>, Ladi Prosek <lprosek@...hat.com> Subject: [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
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