RE: [PATCH v2 4/4] hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h

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From: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx> Sent: Friday, November 15, 2024 1:15 PM
> 
> On 11/10/2024 8:13 PM, Michael Kelley wrote:
> > From: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx> Sent: Thursday, November 7, 2024 2:32 PM
> >>
> >> Switch to using hvhdk.h everywhere in the kernel. This header includes
> >> all the new Hyper-V headers in include/hyperv, which form a superset of
> >> the definitions found in hyperv-tlfs.h.
> >>
> >> This makes it easier to add new Hyper-V interfaces without being
> >> restricted to those in the TLFS doc (reflected in hyperv-tlfs.h).
> >>
> >> To be more consistent with the original Hyper-V code, the names of some
> >> definitions are changed slightly. Update those where needed.
> >>
> >> hyperv-tlfs.h is no longer included anywhere - hvhdk.h can serve
> >> the same role, but with an easier path for adding new definitions.
> >
> > Is hyperv-tlfs.h and friends being deleted? If not, the risk is that
> > someone adds a new #include of it without realizing that it has been
> > superseded by hvhdk.h.
> >
> 
> I was hesitant to delete it because I thought someone may still have
> a use for a header file that (mostly) reflects the TLFS document and
> nothing more.
> 
> But in practical terms, this patchset makes it much more difficult to
> use because all the helper code (i.e. mshyperv.h) now uses hvhdk.h.
> So, maybe there is no point keeping it.
> 
> > Note also that this patch does not apply cleanly to 6.12 rc's, or to
> > current linux-next trees. There's an unrelated #include added to
> > arch/x86/include/asm/kvm_host.h that causes a merge failure
> > in that file.
> >
> 
> I've been developing this series based on hyperv-next. Should I be
> basing it on linux-next?
> 

Yes, base it on linux-next. hyperv-next was last sync'ed with
upstream at 6.11-rc4 back in mid-August, so it's pretty far
out-of-date. Wei will need to sync it before picking up any
new patches.

Michael




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