linux-kernel - Re: [RFC PATCH v5 00/29] TDX KVM selftests

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Date: Wed, 5 Jun 2024 20:56:48 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "sagis@...gle.com" <sagis@...gle.com>, "Verma, Vishal L"
	<vishal.l.verma@...el.com>
CC: "vipinsh@...gle.com" <vipinsh@...gle.com>, "Aktas, Erdem"
	<erdemaktas@...gle.com>, "shuah@...nel.org" <shuah@...nel.org>, "Xu, Haibo1"
	<haibo1.xu@...el.com>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "Afranji,
 Ryan" <afranji@...gle.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "seanjc@...gle.com" <seanjc@...gle.com>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>, "linux-mm@...ck.org"
	<linux-mm@...ck.org>, "Yamahata, Isaku" <isaku.yamahata@...el.com>,
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	"Annapurve, Vishal" <vannapurve@...gle.com>, "runanwang@...gle.com"
	<runanwang@...gle.com>, "linux-kselftest@...r.kernel.org"
	<linux-kselftest@...r.kernel.org>, "chao.p.peng@...ux.intel.com"
	<chao.p.peng@...ux.intel.com>, "pgonda@...gle.com" <pgonda@...gle.com>
Subject: Re: [RFC PATCH v5 00/29] TDX KVM selftests

On Wed, 2024-06-05 at 15:42 -0500, Sagi Shahar wrote:
> > > Hm you're right, I was looking more narrowly because of the kvm-coco-
> > > queue conflicts, for some of which even v19 might be too old. The MMU
> > > prep series uses a much more recent kvm-coco-queue baseline.
> > > 
> > > Rick, can we post a branch with /everything/ on this MMU prep baseline
> > > for this selftest refresh?
> > 
> > Actually I see the branch below does contain everything, not just the
> > MMU prep patches. Sagi, is this fine for a baseline?
> > 
> Maybe for internal development but I don't think I can post an
> upstream patchset based on an internal Intel development branch.
> Do you know if there's a plan to post a patch series based on that branch
> soon?

We don't currently have plans to post a whole ~130 patch series. Instead we plan
to post subsections out of the series as they slowly move into a maintainer
branch.

We are trying to use the selftests as part of the development of the base TDX
base series. So we need to be able to run them on development branches to catch
regressions and such. For this purpose, we wouldn't need updates to be posted to
the mailing list. It probably needs either some sort of co-development, or
otherwise we will need to maintain an internal fork of the selftests.

We also need to add some specific tests that can cover gaps in our current
testing. Probably we could contribute those back to the series.

What do you think?