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Message-ID: <Y3O94GPUECo+Gg6T@zn.tnic>
Date: Tue, 15 Nov 2022 17:27:12 +0100
From: Borislav Petkov <bp@...en8.de>
To: "Kalra, Ashish" <ashish.kalra@....com>
Cc: Vlastimil Babka <vbabka@...e.cz>, x86@...nel.org,
linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
linux-coco@...ts.linux.dev, linux-mm@...ck.org,
linux-crypto@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
jroedel@...e.de, thomas.lendacky@....com, hpa@...or.com,
ardb@...nel.org, pbonzini@...hat.com, seanjc@...gle.com,
vkuznets@...hat.com, jmattson@...gle.com, luto@...nel.org,
dave.hansen@...ux.intel.com, slp@...hat.com, pgonda@...gle.com,
peterz@...radead.org, srinivas.pandruvada@...ux.intel.com,
rientjes@...gle.com, dovmurik@...ux.ibm.com, tobin@....com,
michael.roth@....com, kirill@...temov.name, ak@...ux.intel.com,
tony.luck@...el.com, marcorr@...gle.com,
sathyanarayanan.kuppuswamy@...ux.intel.com, alpergun@...gle.com,
dgilbert@...hat.com, jarkko@...nel.org,
"Kaplan, David" <David.Kaplan@....com>,
Naoya Horiguchi <naoya.horiguchi@....com>,
Miaohe Lin <linmiaohe@...wei.com>,
Oscar Salvador <osalvador@...e.de>
Subject: Re: [PATCH Part2 v6 14/49] crypto: ccp: Handle the legacy TMR
allocation when SNP is enabled
And,
as dhansen connected the dots, this should be the exact same protection
scenario as UPM:
https://lore.kernel.org/all/20221025151344.3784230-1-chao.p.peng@linux.intel.com
so you should be able to mark them inaccessible the same way and you
won't need any poisoning dance.
And Michael has patches so you probably should talk to him...
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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