linux-kernel - Re: [PATCH v14 00/19] x86: Trenchboot secure dynamic launch Linux kernel support

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Message-ID: <c05731ae-bcf1-4747-b64c-0f4b79f3587f@citrix.com>
Date: Tue, 22 Apr 2025 19:17:42 +0100
From: Andrew Cooper <andrew.cooper3@...rix.com>
To: Dave Hansen <dave.hansen@...el.com>,
 Ross Philipson <ross.philipson@...cle.com>, linux-kernel@...r.kernel.org,
 x86@...nel.org, linux-integrity@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-crypto@...r.kernel.org, kexec@...ts.infradead.org,
 linux-efi@...r.kernel.org, iommu@...ts.linux.dev
Cc: dpsmith@...rtussolutions.com, tglx@...utronix.de, mingo@...hat.com,
 bp@...en8.de, hpa@...or.com, dave.hansen@...ux.intel.com, ardb@...nel.org,
 mjg59@...f.ucam.org, James.Bottomley@...senpartnership.com,
 peterhuewe@....de, jarkko@...nel.org, jgg@...pe.ca, luto@...capital.net,
 nivedita@...m.mit.edu, herbert@...dor.apana.org.au, davem@...emloft.net,
 corbet@....net, ebiederm@...ssion.com, dwmw2@...radead.org,
 baolu.lu@...ux.intel.com, kanth.ghatraju@...cle.com,
 trenchboot-devel@...glegroups.com
Subject: Re: [PATCH v14 00/19] x86: Trenchboot secure dynamic launch Linux
 kernel support

On 21/04/2025 9:52 pm, Dave Hansen wrote:
> Purely from the amount of interest and review tags and the whole "v14"
> thing, it doesn't look like this is very important to anyone. Not to be
> to flippant about it, but if nobody else cares, why should I (or the
> other x86 maintainers)?

There are several downstreams already using this as a part of their
overall system security, one example being
https://www.qubes-os.org/doc/anti-evil-maid/

It's all giant out-of-tree patch series (in multiple projects; Grub,
Xen, iPXE too).  Ross and others are trying to be good open source
citizen and put it upstream where yet-more downstreams can benefit too.

~Andrew