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 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
