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From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, ardb@kernel.org
Cc: Leif Lindholm <quic_llindhol@quicinc.com>,
	Alexander Graf <agraf@csgraf.de>
Subject: Re: [edk2-devel] [PATCH v3 03/16] ArmVirtPkg: make EFI_LOADER_DATA non-executable
Date: Mon, 28 Nov 2022 16:46:10 +0100	[thread overview]
Message-ID: <20221128154610.wik3f65bhbfrdpva@sirius.home.kraxel.org> (raw)
In-Reply-To: <20220926082511.2110797-4-ardb@kernel.org>

On Mon, Sep 26, 2022 at 10:24:58AM +0200, Ard Biesheuvel wrote:
> When the memory protections were implemented and enabled on ArmVirtQemu
> 5+ years ago, we had to work around the fact that GRUB at the time
> expected EFI_LOADER_DATA to be executable, as that is the memory type it
> allocates when loading its modules.
> 
> This has been fixed in GRUB in August 2017, so by now, we should be able
> to tighten this, and remove execute permissions from EFI_LOADER_DATA
> allocations.

Data point: https://bugzilla.redhat.com/show_bug.cgi?id=2149020
tl;dr: fedora 37 grub.efi is still broken.

take care,
  Gerd


  parent reply	other threads:[~2022-11-28 15:46 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26  8:24 [PATCH v3 00/16] ArmVirtPkg/ArmVirtQemu: Performance streamlining Ard Biesheuvel
2022-09-26  8:24 ` [PATCH v3 01/16] ArmVirtPkg: remove EbcDxe from all platforms Ard Biesheuvel
2022-09-26  8:24 ` [PATCH v3 02/16] ArmVirtPkg: do not enable iSCSI driver by default Ard Biesheuvel
2022-09-26  8:24 ` [PATCH v3 03/16] ArmVirtPkg: make EFI_LOADER_DATA non-executable Ard Biesheuvel
2022-09-26 22:28   ` [edk2-devel] " Leif Lindholm
2022-11-28 15:46   ` Gerd Hoffmann [this message]
2022-12-29 18:00     ` dann frazier
2023-01-03  9:59       ` Ard Biesheuvel
2023-01-03 19:39         ` Alexander Graf
2023-01-03 22:47           ` dann frazier
2023-01-04  9:35             ` Ard Biesheuvel
2023-01-04 11:11               ` Gerd Hoffmann
2023-01-04 12:04                 ` Ard Biesheuvel
2023-01-04 12:56                   ` Gerd Hoffmann
2023-01-06  9:55                 ` Laszlo Ersek
2023-01-06 10:06                   ` Laszlo Ersek
2023-01-04 13:13               ` Alexander Graf
2023-01-05  0:09                 ` Alexander Graf
2023-01-05  8:11                   ` Gerd Hoffmann
2023-01-05  8:43                     ` Alexander Graf
2023-01-05  9:41                       ` Ard Biesheuvel
2023-01-05 11:19                         ` Gerd Hoffmann
2023-01-05 11:44                           ` Ard Biesheuvel
2023-01-05 15:12                             ` Gerd Hoffmann
2023-01-05 19:58                               ` Gerd Hoffmann
2023-01-06  2:19                                 ` Sean
2023-01-06  8:44                                   ` Gerd Hoffmann
2023-01-05 23:37                             ` Alexander Graf
2022-09-26  8:24 ` [PATCH v3 04/16] ArmVirtPkg/ArmVirtQemu: wire up timeout PCD to Timeout variable Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 05/16] ArmPkg/ArmMmuLib: don't replace table entries with block entries Ard Biesheuvel
2022-09-26 22:32   ` Leif Lindholm
2022-09-26  8:25 ` [PATCH v3 06/16] ArmPkg/ArmMmuLib: Disable and re-enable MMU only when needed Ard Biesheuvel
2022-09-26 23:28   ` Leif Lindholm
2022-09-26  8:25 ` [PATCH v3 07/16] ArmPkg/ArmMmuLib: permit initial configuration with MMU enabled Ard Biesheuvel
2022-09-26 22:35   ` Leif Lindholm
2022-09-26  8:25 ` [PATCH v3 08/16] ArmPkg/ArmMmuLib: Reuse XIP MMU routines when splitting entries Ard Biesheuvel
2022-09-26 22:38   ` Leif Lindholm
2022-09-26  8:25 ` [PATCH v3 09/16] ArmPlatformPkg/PrePeiCore: permit entry with the MMU enabled Ard Biesheuvel
2022-09-26 22:39   ` [edk2-devel] " Leif Lindholm
2022-09-26  8:25 ` [PATCH v3 10/16] ArmVirtPkg/ArmVirtQemu: implement ArmPlatformLib with static ID map Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 11/16] ArmVirtPkg/ArmVirtQemu: use first 128 MiB as permanent PEI memory Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 12/16] ArmVirtPkg/ArmVirtQemu: enable initial ID map at early boot Ard Biesheuvel
2022-12-29 21:10   ` [edk2-devel] " dann frazier
2023-01-03  9:02     ` Ard Biesheuvel
2023-01-03 19:38       ` dann frazier
2022-09-26  8:25 ` [PATCH v3 13/16] ArmVirtPkg/ArmVirtQemu: Drop unused variable PEIM Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 14/16] ArmVirtPkg/ArmVirtQemu: avoid shadowing PEIMs unless necessary Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 15/16] ArmVirtPkg/QemuVirtMemInfoLib: use HOB not PCD to record the memory size Ard Biesheuvel
2022-09-26  8:25 ` [PATCH v3 16/16] ArmVirtPkg/ArmVirtQemu: omit PCD PEIM unless TPM support is enabled Ard Biesheuvel

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