linux-kernel - Re: [PATCH v10 00/27] Enable CET Virtualization

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Message-ID: <ZzKiapQZgn0RscrC@intel.com>
Date: Tue, 12 Nov 2024 08:33:46 +0800
From: Chao Gao <chao.gao@...el.com>
To: Sean Christopherson <seanjc@...gle.com>
CC: Rick P Edgecombe <rick.p.edgecombe@...el.com>, Weijiang Yang
	<weijiang.yang@...el.com>, Dave Hansen <dave.hansen@...el.com>,
	"x86@...nel.org" <x86@...nel.org>, "peterz@...radead.org"
	<peterz@...radead.org>, "john.allen@....com" <john.allen@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>, "mlevitsk@...hat.com"
	<mlevitsk@...hat.com>, "pbonzini@...hat.com" <pbonzini@...hat.com>
Subject: Re: [PATCH v10 00/27] Enable CET Virtualization

On Wed, Nov 06, 2024 at 08:32:19AM -0800, Sean Christopherson wrote:
>On Wed, Nov 06, 2024, Rick P Edgecombe wrote:
>> On Wed, 2024-11-06 at 09:45 +0800, Yang, Weijiang wrote:
>> > > > Appreciated for your review and comments!
>> > > It looks like this series is very close. Since this v10, there was some
>> > > discussion on the FPU part that seemed settled:
>> > > https://lore.kernel.org/lkml/1c2fd06e-2e97-4724-80ab-8695aa4334e7@intel.com/
>> > 
>> > Hi, Rick,
>> > I have an internal branch to hold a v11 candidate for this series, which
>> > resolved Sean's comments
>> > for this v10, waiting for someone to take over and continue the upstream work.
>> > 
>> > > 
>> > > Then there was also some discussion on the synthetic MSR solution, which
>> > > seemed
>> > > prescriptive enough:
>> > > https://lore.kernel.org/kvm/20240509075423.156858-1-weijiang.yang@intel.com/
>> > > 
>> > > Weijiang, had you started a v2 on the synthetic MSR series? Where did you
>> > > get to
>> > > on incorporating the other small v10 feedback?
>> > 
>> > Yes, Sean's review feedback for v1 is also included in my above v11 candidate.
>> 
>> Nice, sounds like another version (which could be the last) is basically ready
>> to go. Please let me know if it gets stuck for lack of someone to take it over.
>
>Or me, if Intel can't conjure up the resource.  I have spent way, way too much
>time and effort on CET virtualization to let it die on the vine :-)

Just FYI, I will take it over; I plan to submit v11 after x86 fpu changes [*]
are settled.

[*]: https://lore.kernel.org/kvm/67c5a358-0e40-4b2f-b679-33dd0dfe73fb@intel.com/