Re: [PATCH 00/27] drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups

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On Wed, Jan 04, 2023 at 01:01:13AM +0000, Sean Christopherson wrote:
> On Fri, Dec 23, 2022, Yan Zhao wrote:
> > On Fri, Dec 23, 2022 at 12:57:12AM +0000, Sean Christopherson wrote:
> > > Fix a variety of found-by-inspection bugs in KVMGT, and overhaul KVM's
> > > page-track APIs to provide a leaner and cleaner interface.  The motivation
> > > for this series is to (significantly) reduce the number of KVM APIs that
> > > KVMGT uses, with a long-term goal of making all kvm_host.h headers
> > > KVM-internal.  That said, I think the cleanup itself is worthwhile,
> > > e.g. KVMGT really shouldn't be touching kvm->mmu_lock.
> > > 
> > > Note!  The KVMGT changes are compile tested only as I don't have the
> > > necessary hardware (AFAIK).  Testing, and lots of it, on the KVMGT side
> > > of things is needed and any help on that front would be much appreciated.
> > hi Sean,
> > Thanks for the patch!
> > Could you also provide the commit id that this series is based on?
> 
> The commit ID is provided in the cover letter:
> 
>   base-commit: 9d75a3251adfbcf444681474511b58042a364863
> 
> Though you might have a hard time finding that commit as it's from an old
> version of kvm/queue that's probably since been force pushed.
> 
> > I applied them on top of latest master branch (6.1.0+,
> > 8395ae05cb5a2e31d36106e8c85efa11cda849be) in repo
> > https://github.com/torvalds/linux.git, yet met some conflicts and I
> > fixed them manually. (patch 11 and patch 25).
> > 
> > A rough test shows that below mutex_init is missing.
> > But even with this fix, I still met guest hang during guest boots up.
> > Will look into it and have a detailed review next week.
> 
> Thanks again for the reviews and testing!  I'll get a v2 out in the next week or
> so (catching up from holidays) and will be more explicit in documenting the base
> version.
That's fine and it's a pleasure to me :)



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