On Fri, 2024-08-02 at 15:44 +0000, Michael Kelley wrote:

Did a basic smoke test of this two-patch series on a Hyper-V Gen 1
VM and on a Gen 2 VM. All looks good and behaves as expected.

On the Gen 1 VM, the PIT is used briefly at boot (takes ~35 interrupts)
before the Hyper-V synthetic timer takes over and the PIT is shutdown.
As expected, no further interrupts are received from the PIT.

On a Gen 2 VM, apic_needs_pit() returns true because
X86_FEATURE_ARAT isn't present. The PIT doesn't exist in a
Gen 2 VM, but the code paths handle this situation with no
problems, just as before the patch series.

For the two-patch series on Hyper-V,
Tested-by: Michael Kelley <redacted>

Thank you!