linux-kernel - Re: [PATCH v3 2/8] KVM: x86: nSVM: Cache and validate vmcb12 g

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Message-ID: <aYZF6sYhDIdi-pvh@google.com>
Date: Fri, 6 Feb 2026 11:50:02 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Yosry Ahmed <yosry.ahmed@...ux.dev>
Cc: Jim Mattson <jmattson@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Thomas Gleixner <tglx@...nel.org>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Shuah Khan <shuah@...nel.org>, kvm@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v3 2/8] KVM: x86: nSVM: Cache and validate vmcb12 g_pat

On Fri, Feb 06, 2026, Yosry Ahmed wrote:
> On Fri, Feb 06, 2026 at 11:12:36AM -0800, Sean Christopherson wrote:
> > Oh, and if we do plumb in @ctrl to __nested_vmcb_check_save(), I vote to
> > opportunistically drop the useless single-use wrappers (probably in a standalone
> > patch to plumb in @ctrl).  E.g. (completely untested)
> 
> They are dropped by
> https://lore.kernel.org/kvm/20260206190851.860662-9-yosry.ahmed@linux.dev/.

At least I'm consistent?  Hmm.  Jim, can you base your next version on v5 of
Yosry's series?  I think when I apply, I'll splice in this series between patches
20 and 21.  I could resolve the conflicts when applying, but since I'll probably
tag these for stable@ as well, I'd rather apply patches that are closer to what
was posted.