[PATCH 0/5] Drivers: hv: Fix NEED_RESCHED_LAZY and use common APIs

[Peter Zijlstra]

On Mon, Aug 25, 2025 at 01:06:17PM -0700, Sean Christopherson wrote:
> Fix a bug where MSHV root partitions don't honor NEED_RESCHED_LAZY, and then
> deduplicate the TIF related MSHV code by turning the "kvm" entry APIs into
> more generic "virt" APIs (which ideally would have been done when MSHV root
> support was added).
> 
> Assuming all is well, maybe this could go through the tip tree?
> 
> The Hyper-V stuff and non-x86 architectures are compile-tested only.

I suspect there's more of this wreckage in the new VTL driver that
they just put in:

  https://lore.kernel.org/all/20250729051436.190703-3-namjain@linux.microsoft.com/

although ideally they rip that thing out. I don't know how that code can
ever be correct.