From: "Marvin Häuser" <mhaeuser@posteo.de>
To: Ard Biesheuvel <ardb@kernel.org>,devel@edk2.groups.io
Subject: Re: [edk2-devel] [RFC 07/13] MdeModulePkg/DxeCore: Permit preliminary CPU arch fallback
Date: Mon, 13 Feb 2023 13:32:28 -0800 [thread overview]
Message-ID: <18425.1676323948912560575@groups.io> (raw)
In-Reply-To: <20230213151810.2301480-8-ardb@kernel.org>
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Without wanting to blow up your RFC with another one - I discussed this with various people, including Bret when he was still at Project Mu, and there was a consensus among them that integrating the whole CPU arch code right into DxeCore would be a good idea. This would especially remove the hack that queues permission applications till CpuDxe loads for good, rather than requiring pro-active consumption of a library that proves this "fallback". For most of the architectural protocols, especially SecurityStubDxe, I never got the gist why you would want them to be separate from DxeCore. Obviously there should be a level of customizability for IBVs and OEMs, though that can be done statically-linked as well.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3223
What's your take on this?
Best regards,
Marvin
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next prev parent reply other threads:[~2023-02-13 21:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-13 15:17 [RFC 00/13] Hardware enforced W^X memory protections Ard Biesheuvel
2023-02-13 15:17 ` [RFC 01/13] ArmPkg/Mmu: Remove handling of NONSECURE memory regions Ard Biesheuvel
2023-02-13 15:17 ` [RFC 02/13] ArmPkg/ArmMmuLib: Introduce region types for RO/XP WB cached memory Ard Biesheuvel
2023-02-13 15:18 ` [RFC 03/13] MdePkg/BasePeCoffLib: Add API to keep track of relocation range Ard Biesheuvel
2023-02-13 15:18 ` [RFC 04/13] MdeModulePkg/DxeIpl: Avoid shadowing IPL PEIM by default Ard Biesheuvel
2023-02-13 15:18 ` [RFC 05/13] MdeModulePkg/DxeIpl AARCH64: Remap DXE core code section before launch Ard Biesheuvel
2023-02-13 15:18 ` [RFC 06/13] MdeModulePkg/DxeCore: Reduce range of W+X remaps at EBS time Ard Biesheuvel
2023-02-13 15:18 ` [RFC 07/13] MdeModulePkg/DxeCore: Permit preliminary CPU arch fallback Ard Biesheuvel
2023-02-13 21:32 ` Marvin Häuser [this message]
2023-02-13 22:07 ` [edk2-devel] " Ard Biesheuvel
2023-02-13 22:24 ` Marvin Häuser
2023-02-13 15:18 ` [RFC 08/13] ArmPkg: Implement ArmSetMemoryOverrideLib Ard Biesheuvel
2023-02-13 15:18 ` [RFC 09/13] ArmVirtPkg/ArmVirtQemu: Use XP memory mappings by default Ard Biesheuvel
2023-02-13 15:18 ` [RFC 10/13] ArmVirtPkg/ArmVirtQemu: Use PEI flavor of ArmMmuLib for all PEIMs Ard Biesheuvel
2023-02-13 15:18 ` [RFC 11/13] ArmVirtPkg/ArmVirtQemu: Use read-only memory region type for code flash Ard Biesheuvel
2023-02-13 15:18 ` [RFC 12/13] BaseTools/GccBase AARCH64: Avoid page sharing between code and data Ard Biesheuvel
2023-02-13 15:18 ` [RFC 13/13] ArmVirtPkg/ArmVirtQemu: Enable hardware enforced W^X memory permissions Ard Biesheuvel
2023-02-13 21:16 ` [edk2-devel] " Marvin Häuser
2023-02-13 21:59 ` Ard Biesheuvel
2023-02-13 22:23 ` Marvin Häuser
2023-02-13 22:37 ` Ard Biesheuvel
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