23 Aug, 2019

1 commit

• bd00cd52d   clocksource/drivers/hyperv: Add Hyper-V specific sched clock function ... Browse Code »

  Hyper-V guests use the default native_sched_clock() in
  pv_ops.time.sched_clock on x86. But native_sched_clock() directly uses the
  raw TSC value, which can be discontinuous in a Hyper-V VM.

  Add the generic hv_setup_sched_clock() to set the sched clock function
  appropriately. On x86, this sets pv_ops.time.sched_clock to read the
  Hyper-V reference TSC value that is scaled and adjusted to be continuous.

  Also move the Hyper-V reference TSC initialization much earlier in the boot
  process so no discontinuity is observed when pv_ops.time.sched_clock
  calculates its offset.

  [ tglx: Folded build fix ]

  Signed-off-by: Tianyu Lan
  Signed-off-by: Thomas Gleixner
  Reviewed-by: Michael Kelley
  Link: https://lkml.kernel.org/r/20190814123216.32245-3-Tianyu.Lan@microsoft.com

  Tianyu Lan

  2019-08-23 22:59:54 +0800  

09 Jul, 2019

1 commit

• 765e33f52   Drivers: hv: vmbus: Break out ISA independent parts of mshyperv.h ... Browse Code »

  Break out parts of mshyperv.h that are ISA independent into a
  separate file in include/asm-generic. This move facilitates
  ARM64 code reusing these definitions and avoids code
  duplication. No functionality or behavior is changed.

  Signed-off-by: Michael Kelley
  Reviewed-by: Vitaly Kuznetsov
  Signed-off-by: Sasha Levin

  Michael Kelley

  2019-07-09 07:06:27 +0800