On Thu, Sep 04, 2025 at 10:39:37PM -0700, Sean Christopherson wrote: > On Thu, Sep 04, 2025, Wei Liu wrote: > > On Wed, Aug 27, 2025 at 05:01:49PM -0700, Sean Christopherson wrote: > > > Fix a bug where MSHV root partitions (and upper-level VTL code) 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. > > > > > > This version is based on > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git > > > hyperv-next > > > > > > in order to pickup the VTL changes that are queued for 6.18. I also > > > squashed the NEED_RESCHED_LAZY fixes for root and VTL modes into a single > > > patch, as it should be easy/straightforward to drop the VTL change as > > > needed > > > if we want this in 6.17 or earlier. > > > > > > That effectively means the full series is dependent on the VTL changes > > > being > > > fully merged for 6.18. But I think that's ok as it's really only the MSHV > > > changes that have any urgency whatsoever, and I assume that Microsoft is > > > the only user that truly cares about the MSHV root fix. I.e. if the whole > > > thing gets delayed, I think it's only the Hyper-V folks that are impacted. > > > > > > I have no preference what tree this goes through, or when, and can respin > > > and/or split as needed. > > > > > > As with v1, the Hyper-V stuff and non-x86 architectures are compile-tested > > > only. > > > > > > v2: > > > - Rebase on hyperv-next. > > > - Fix and converge the VTL code as well. [Peter, Nuno] > > > > > > v1: https://lore.kernel.org/all/20250825200622.3759571-1-sea...@google.com > > > > > > > I dropped the mshv_vtl changes in this series and applied the rest > > (including the KVM changes) to hyperv-next. > > mshv_do_pre_guest_mode_work() ended up getting left behind since its removal > was > in the last mshv_vtl patch. > > $ git grep mshv_do_pre_guest_mode_work > drivers/hv/mshv.h:int mshv_do_pre_guest_mode_work(ulong th_flags); > drivers/hv/mshv_common.c:int mshv_do_pre_guest_mode_work(ulong th_flags) > drivers/hv/mshv_common.c:EXPORT_SYMBOL_GPL(mshv_do_pre_guest_mode_work); > > Want to squash this into 3786d7d6b3c0 ("mshv: Use common "entry virt" APIs to > do > work in root before running guest")? >
It's done. Thanks for pointing it out. Wei
