Re: [PATCH for-4.14 8/8] x86/hvm: enable emulated PIT for PVH dom0

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 12/06/2020 16:56, Roger Pau Monne wrote:
> Some video BIOS require a PIT in order to work properly, hence classic
> PV dom0 gets partial access to the physical PIT as long as it's not in
> use by Xen.

Is this actually true today?

I can believe that it may have been necessary on old hardware, but the
structure of systems has changed massively over the past 20 years, and
the PIT is very legacy these days.

We shouldn't be blindly propagating bodges like this forward.

~Andrew