linux-kernel - Re: [PATCH v16 00/51] KVM: x86: Super Mega CET

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Message-ID: <aNQA+VNTyr9kDJCM@intel.com>
Date: Wed, 24 Sep 2025 22:32:25 +0800
From: Chao Gao <chao.gao@...el.com>
To: Sean Christopherson <seanjc@...gle.com>
CC: Paolo Bonzini <pbonzini@...hat.com>, <kvm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Tom Lendacky <thomas.lendacky@....com>,
	Mathias Krause <minipli@...ecurity.net>, John Allen <john.allen@....com>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>, Binbin Wu
	<binbin.wu@...ux.intel.com>, Xiaoyao Li <xiaoyao.li@...el.com>, "Maxim
 Levitsky" <mlevitsk@...hat.com>, Zhang Yi Z <yi.z.zhang@...ux.intel.com>,
	"Xin Li" <xin@...or.com>
Subject: Re: [PATCH v16 00/51] KVM: x86: Super Mega CET

On Fri, Sep 19, 2025 at 03:32:07PM -0700, Sean Christopherson wrote:
>As the subject suggests, this series continues to grow, as there an absolutely
>stupid number of edge cases and interactions.
>
>There are (a lot) more changes between v15 and v16 than I was hoping for, but
>there all fairly "minor" in the sense that it's things like disabling SHSTK
>when using the shadow MMU.  I.e. it's mostly "configuration" fixes, and very
>few logical changes (outside of msrs_test.c, which has non-trivial changes due
>to ignore_msrs, argh).
>
>So, my plan is to still land this in 6.18.  I'm going to push it to -next
>today to get as much testing as possible, but in a dedicated branch so that I
>can fixup as needed (e.g. even if it's just for reviews).  I'll freeze the
>hashes sometime next week.

The CET branch in your kvm-x86 repo passed all my tests on an Emerald Rapids
system, including:

1. kselftest
2. KVM-Unit-Test for both i386 and x86_64
3. glibc unit tests in the guest