From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B7BA4C282DE for ; Fri, 7 Mar 2025 05:56:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MhiyITzafn+oL8EbKVQjdW6/i3/2fPQ6p6JW0xN59M0=; b=pfm+qTLxzoJsqwZvKCJa/21gun Kd/S6YUs1dJaEwvRjG8s/dzrspitoObFfcs6j0v4mXNDUTbCyMMaPDH7UFpzNHH+u2Mc8+/YfKZq6 D9c0Q8EA3J7alFGCinYwiFkRk0jbZupGwwY8CVTruIxMJCMmRHESJ/xgKYzWqVGUXBMNTcw3ZkHJe QPBpML/G2LhhNF1OGqbZFQvzoC17I60D6FbwQZP8SUKNinQOt7mwUKkLhiIDPS8nW4gaLDxvrHJw5 EZszvScgQtNj8IliAvwQdahmumcxoEg7TZbz2wF7JYCVAsfrz0xbxQyPlcMYN8mpdMM+x8MxqQ5m0 UylnCx6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tqQhJ-0000000DGN3-3b9E; Fri, 07 Mar 2025 05:56:37 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tqQgC-0000000DG8j-2Vtc for kexec@lists.infradead.org; Fri, 07 Mar 2025 05:55:30 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id DDA815C5688; Fri, 7 Mar 2025 05:53:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B8CAAC4CED1; Fri, 7 Mar 2025 05:55:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741326927; bh=MhiyITzafn+oL8EbKVQjdW6/i3/2fPQ6p6JW0xN59M0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jaDFXWdVefRVlF5I4F1zLj0PsGHZOmZnbvI96wxh0Xru+rB5XamCaShyRZr+njJNo 6beP32EjV5Miai+UIKcynMRVboeVl50qr9uvuBsAgMz0TyzwKZaA/CuUs1EIglKhm7 xyA4/Cmf9tzK82NDZb8Z4PQCYYHl9L3Efz+MrmFlLmUHydkN4elrX79KF0jcZ6K+fI 2rpxKN+IRtce1ECwZOrARfO72hPMemqhOp6R870ixSN2Yc4afGtllk/cj5BjkKHC63 7jv55UfYx5LBPNQQbzMHkwY8fua7xVfJ0FNBEdf5+KuxF881aSdAM4tG5BC4O8Dhg9 VTdrcK4FruVww== Date: Fri, 7 Mar 2025 07:55:22 +0200 From: Jarkko Sakkinen To: Ross Philipson Cc: 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-foundation.org, 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, 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, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com Subject: Re: [PATCH v12 07/19] x86/msr: Add variable MTRR base/mask and x2apic ID registers Message-ID: References: <20241219194216.152839-1-ross.philipson@oracle.com> <20241219194216.152839-8-ross.philipson@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241219194216.152839-8-ross.philipson@oracle.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250306_215528_688891_E86EF348 X-CRM114-Status: UNSURE ( 5.39 ) 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 Thu, Dec 19, 2024 at 11:42:04AM -0800, Ross Philipson wrote: > These values are needed by Secure Launch to locate particular CPUs > during AP startup and to restore the MTRR state after a TXT launch. Hmm... does the first part with like locating particular CPU cores? I'd start also the sentence with the action taken except assuring why the undefined action is taken. "Add the MSR values required by Secure Launch (SL) to locate particular CPU cores during application processor (AP) startup, and restore the MTRR state after a Intel TXT launch." Along the lines would be more informative... BR, Jarkko