RE: [PATCH v2 char-misc 1/1] x86/hyperv: Fix PIT shutdown quirk

2018-10-30 Thread Michael Kelley
From: Thomas Gleixner Sent: Tuesday, October 30, 2018 1:36 AM > > You can avoid the ideffery completely. Something like the uncompiled patch > (lacks comments) below keeps everything in i8253 and should just work. > Thanks. I'll spin a new version with that approach. Having to clutter the i

Re: [PATCH v2 char-misc 1/1] x86/hyperv: Fix PIT shutdown quirk

2018-10-30 Thread Thomas Gleixner
Michael, On Mon, 22 Oct 2018, Michael Kelley wrote: > pit_shutdown() doesn't work on Hyper-V because of a quirk in the > PIT emulation. After shutdown the emulated PIT continues to interrupt > @18.2 HZ. This problem exists in all versions of Hyper-V and just > had not previously been noticed. So

[PATCH v2 char-misc 1/1] x86/hyperv: Fix PIT shutdown quirk

2018-10-22 Thread Michael Kelley
pit_shutdown() doesn't work on Hyper-V because of a quirk in the PIT emulation. After shutdown the emulated PIT continues to interrupt @18.2 HZ. This problem exists in all versions of Hyper-V and just had not previously been noticed. So replace the normal PIT shutdown function with an alternate ver