linux-kernel - Re: [PATCHv2] x86/tdx: Preserve shared bit on mprotect()

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Message-ID: <xa2g4a3hydmucjlfjci7yfuxfsk5yfsbpnbqg4rqzdyjnpq3xp@5q7srdiupbiv>
Date: Tue, 23 Apr 2024 14:09:56 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Dave Hansen <dave.hansen@...el.com>
Cc: Tom Lendacky <thomas.lendacky@....com>, tglx@...utronix.de, 
	mingo@...hat.com, bp@...en8.de, sathyanarayanan.kuppuswamy@...ux.intel.com, 
	hpa@...or.com, seanjc@...gle.com, elena.reshetova@...el.com, 
	rick.p.edgecombe@...el.com, x86@...nel.org, linux-kernel@...r.kernel.org, 
	Chris Oo <cho@...rosoft.com>, Dexuan Cui <decui@...rosoft.com>
Subject: Re: [PATCHv2] x86/tdx: Preserve shared bit on mprotect()

On Mon, Apr 22, 2024 at 01:18:26PM -0700, Dave Hansen wrote:
> On 4/22/24 12:46, Tom Lendacky wrote:
> > Appears to be no functional change on the AMD side.
> > 
> > Reviewed-by: Tom Lendacky <thomas.lendacky@....com>
> 
> Thanks a bunch for that!  I was just noodling over this one and that was
> one of my worries.

Please hold. 0-day found more build issues. Apparently 'cc_mask' is used in
couple of drivers for unrelated reasons and "#define cc_mask 0" breaks them.

I will send v3.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov