From: Randy Dunlap <rdunlap@infradead.org>
To: Ross Philipson <ross.philipson@oracle.com>,
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,
andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com
Subject: Re: [PATCH v14 02/19] x86: Secure Launch Kconfig
Date: Mon, 21 Apr 2025 10:41:27 -0700 [thread overview]
Message-ID: <e1e3dc8f-ca16-4cce-a670-bb8ef566213d@infradead.org> (raw)
In-Reply-To: <20250421162712.77452-3-ross.philipson@oracle.com>
Hi,
On 4/21/25 9:26 AM, Ross Philipson wrote:
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 4b9f378e05f6..badde1e9742e 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2001,6 +2001,17 @@ config EFI_RUNTIME_MAP
>
> See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
>
> +config SECURE_LAUNCH
> + bool "Secure Launch support"
> + depends on X86_64 && X86_X2APIC && TCG_TIS && TCG_CRB && CRYPTO_LIB_SHA1 && CRYPTO_LIB_SHA256
It's normal to select needed library symbols instead of depending on them.
Nothing else in the kernel tree uses depends on for these 2 Kconfig symbols.
(CRYPTO_LIB_SHAxxx)
> + help
> + The Secure Launch feature allows a kernel to be loaded
> + directly through an Intel TXT measured launch. Intel TXT
> + establishes a Dynamic Root of Trust for Measurement (DRTM)
> + where the CPU measures the kernel image. This feature then
> + continues the measurement chain over kernel configuration
> + information and init images.
--
~Randy
next prev parent reply other threads:[~2025-04-21 17:41 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-21 16:26 [PATCH v14 00/19] x86: Trenchboot secure dynamic launch Linux kernel support Ross Philipson
2025-04-21 16:26 ` [PATCH v14 01/19] Documentation/x86: Secure Launch kernel documentation Ross Philipson
2025-06-18 8:33 ` Mowka, Mateusz
2025-06-18 15:02 ` Dave Hansen
2025-04-21 16:26 ` [PATCH v14 02/19] x86: Secure Launch Kconfig Ross Philipson
2025-04-21 17:41 ` Randy Dunlap [this message]
2025-04-22 19:32 ` ross.philipson
2025-06-18 8:32 ` Mowka, Mateusz
2025-04-21 16:26 ` [PATCH v14 03/19] x86: Secure Launch Resource Table header file Ross Philipson
2025-04-21 19:18 ` ALOK TIWARI
2025-04-22 19:33 ` ross.philipson
2025-04-23 18:23 ` ALOK TIWARI
2025-04-23 20:04 ` ross.philipson
2025-04-24 12:36 ` Huang, Kai
2025-04-24 19:19 ` ross.philipson
2025-04-21 16:26 ` [PATCH v14 04/19] x86: Secure Launch main " Ross Philipson
2025-04-24 12:29 ` Huang, Kai
2025-04-24 18:56 ` ross.philipson
2025-06-23 11:44 ` Camacho Romero, Michal
2025-06-23 21:29 ` ross.philipson
2025-06-27 9:15 ` Camacho Romero, Michal
2025-04-21 16:26 ` [PATCH v14 05/19] x86: Add early SHA-1 support for Secure Launch early measurements Ross Philipson
2025-04-21 16:26 ` [PATCH v14 06/19] x86: Add early SHA-256 " Ross Philipson
2025-04-21 16:27 ` [PATCH v14 07/19] x86/msr: Add variable MTRR base/mask and x2apic ID registers Ross Philipson
2025-04-21 16:27 ` [PATCH v14 08/19] x86/boot: Place TXT MLE header in the kernel_info section Ross Philipson
2025-04-23 20:54 ` ALOK TIWARI
2025-04-21 16:27 ` [PATCH v14 09/19] x86: Secure Launch kernel early boot stub Ross Philipson
2025-04-22 1:18 ` Dave Hansen
2025-04-22 19:38 ` ross.philipson
2025-04-23 20:38 ` ALOK TIWARI
2025-04-23 21:07 ` ross.philipson
2025-04-21 16:27 ` [PATCH v14 10/19] x86: Secure Launch kernel late " Ross Philipson
2025-04-21 16:27 ` [PATCH v14 11/19] x86: Secure Launch SMP bringup support Ross Philipson
2025-04-21 16:27 ` [PATCH v14 12/19] kexec: Secure Launch kexec SEXIT support Ross Philipson
2025-04-23 19:58 ` ALOK TIWARI
2025-04-23 20:07 ` ross.philipson
2025-04-21 16:27 ` [PATCH v14 13/19] x86/reboot: Secure Launch SEXIT support on reboot paths Ross Philipson
2025-04-21 22:57 ` Dave Hansen
2025-04-22 19:31 ` ross.philipson
2025-04-21 16:27 ` [PATCH v14 14/19] tpm, tpm_tis: Close all localities Ross Philipson
2025-04-21 16:27 ` [PATCH v14 15/19] tpm, tpm_tis: Address positive localities in tpm_tis_request_locality() Ross Philipson
2025-04-21 16:27 ` [PATCH v14 16/19] tpm, tpm_tis: Allow locality to be set to a different value Ross Philipson
2025-04-22 10:20 ` Stefano Garzarella
2025-04-23 19:38 ` Daniel P. Smith
2025-04-21 16:27 ` [PATCH v14 17/19] tpm, sysfs: Show locality used by kernel Ross Philipson
2025-04-21 16:27 ` [PATCH v14 18/19] x86: Secure Launch late initcall platform module Ross Philipson
2025-04-28 17:38 ` Andy Lutomirski
2025-04-30 1:40 ` Daniel P. Smith
2025-04-30 18:51 ` Andy Lutomirski
2025-04-21 16:27 ` [PATCH v14 19/19] x86/efi: EFI stub DRTM launch support for Secure Launch Ross Philipson
2025-04-21 20:52 ` [PATCH v14 00/19] x86: Trenchboot secure dynamic launch Linux kernel support Dave Hansen
2025-04-21 21:00 ` Andrew Cooper
2025-04-22 18:17 ` Andrew Cooper
2025-04-22 19:16 ` Dave Hansen
2025-04-22 21:26 ` Ard Biesheuvel
2025-04-22 23:21 ` Dave Hansen
2025-04-24 18:45 ` Dave Hansen
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