linux-kernel - Re: [RFC PATCH 1/3] x86/mm: fix LAM cr3 mask inconsistency during context switch

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Message-ID: <Zeo724RK1CEDPhVq@google.com>
Date: Thu, 7 Mar 2024 14:12:43 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Yosry Ahmed <yosryahmed@...gle.com>
Cc: Dave Hansen <dave.hansen@...el.com>, Andrew Morton <akpm@...ux-foundation.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Peter Zijlstra <peterz@...radead.org>, Andy Lutomirski <luto@...nel.org>, 
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, x86@...nel.org, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/3] x86/mm: fix LAM cr3 mask inconsistency during
 context switch

On Thu, Mar 07, 2024, Yosry Ahmed wrote:
> On Thu, Mar 07, 2024 at 10:49:51AM -0800, Sean Christopherson wrote:
> > On Thu, Mar 07, 2024, Dave Hansen wrote:
> > > I know we all have different rules, but any time you could spend absorbing:
> > > 
> > > 	https://www.kernel.org/doc/html/next/process/maintainer-tip.html
> > > 
> > > would be appreciated, especially:
> > > 
> > > > The condensed patch description in the subject line should start with
> > > > a uppercase letter and should be written in imperative tone.
> > 
> > And while you're at it,
> > 
> >   https://www.kernel.org/doc/html/next/process/maintainer-kvm-x86.html
> > 
> > which my crystal ball says will be helpful in your future. ;-)
> 
> I am sincerely hoping that there are no contradictions between different
> maintainer docs, otherwise my brain will break really fast.

Heh, as long as you don't contribute to net/, you'll be fine.  kvm-x86 mostly just
follows tip, with a few minor exceptions.  But the exceptions are explicitly
documented in kvm-x86, and I am intentionally forgiving/lax on them, because yeah,
getting pulled in multiple directions is no fun.