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Tue, 22 Apr 2025 11:17:44 -0700 (PDT) Received: from [192.168.86.29] ([83.104.178.215]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4406d5bbcfesm186100505e9.23.2025.04.22.11.17.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Apr 2025 11:17:44 -0700 (PDT) Message-ID: Date: Tue, 22 Apr 2025 19:17:42 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 00/19] x86: Trenchboot secure dynamic launch Linux kernel support To: Dave Hansen , Ross Philipson , linux-kernel@vger.kernel.org, x86@kernel.org, linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, kexec@lists.infradead.org, linux-efi@vger.kernel.org, iommu@lists.linux.dev Cc: dpsmith@apertussolutions.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, ardb@kernel.org, mjg59@srcf.ucam.org, James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca, luto@amacapital.net, nivedita@alum.mit.edu, herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net, ebiederm@xmission.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, kanth.ghatraju@oracle.com, trenchboot-devel@googlegroups.com References: <20250421162712.77452-1-ross.philipson@oracle.com> Content-Language: en-GB From: Andrew Cooper Autocrypt: addr=andrew.cooper3@citrix.com; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250422_191748_072605_18AB68EC X-CRM114-Status: UNSURE ( 8.04 ) X-CRM114-Notice: Please train this message. X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org 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