linux-kernel - Re: [GIT PULL 00/13] More EFI updates for v5.6

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Date:   Mon, 20 Jan 2020 09:25:01 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     linux-efi@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org,
        Anshuman Khandual <anshuman.khandual@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Young <dyoung@...hat.com>,
        Saravana Kannan <saravanak@...gle.com>
Subject: Re: [GIT PULL 00/13] More EFI updates for v5.6


* Ard Biesheuvel <ardb@...nel.org> wrote:

> The following changes since commit 4444f8541dad16fefd9b8807ad1451e806ef1d94:
> 
>   efi: Allow disabling PCI busmastering on bridges during boot (2020-01-10 18:55:04 +0100)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git tags/efi-next
> 
> for you to fetch changes up to 743c5dd59f7e4b9e7a28be6a8f0e8d03271a98ab:
> 
>   efi: Fix handling of multiple efi_fake_mem= entries (2020-01-13 10:41:53 +0100)
> 
> ----------------------------------------------------------------
> Third and final batch of EFI updates for v5.6:
> - A few touchups for the x86 libstub changes that have already been queued
>   up.
> - Fix memory leaks and crash bugs in the EFI fake_mem driver, which may be
>   used more heavily in the future for device-dax soft reservation (Dan)
> - Avoid RWX mappings in the EFI page tables when possible.
> - Avoid PCIe probing failures if the EFI framebuffer is probed first when
>   the new of_devlink feature is active.
> - Move the support code for the old EFI memory mapping style into its only
>   user, the SGI UV1+ support code.
> 
> ----------------------------------------------------------------
> Anshuman Khandual (1):
>       efi: Fix comment for efi_mem_type() wrt absent physical addresses
> 
> Ard Biesheuvel (7):
>       efi/libstub/x86: use const attribute for efi_is_64bit()
>       efi/libstub/x86: use mandatory 16-byte stack alignment in mixed mode
>       x86/mm: fix NX bit clearing issue in kernel_map_pages_in_pgd
>       efi/x86: don't map the entire kernel text RW for mixed mode
>       efi/x86: avoid RWX mappings for all of DRAM
>       efi/x86: limit EFI old memory map to SGI UV machines
>       efi/arm: defer probe of PCIe backed efifb on DT systems
> 
> Arnd Bergmann (1):
>       efi/libstub/x86: fix unused-variable warning
> 
> Dan Williams (4):
>       efi: Add a flags parameter to efi_memory_map
>       efi: Add tracking for dynamically allocated memmaps
>       efi: Fix efi_memmap_alloc() leaks
>       efi: Fix handling of multiple efi_fake_mem= entries
> 
>  Documentation/admin-guide/kernel-parameters.txt |   3 +-
>  arch/x86/boot/compressed/eboot.c                |  16 +-
>  arch/x86/boot/compressed/efi_thunk_64.S         |  46 ++----
>  arch/x86/boot/compressed/head_64.S              |   7 +-
>  arch/x86/include/asm/efi.h                      |  28 ++--
>  arch/x86/kernel/kexec-bzimage64.c               |   2 +-
>  arch/x86/mm/pat/set_memory.c                    |   8 +-
>  arch/x86/platform/efi/efi.c                     |  40 +++--
>  arch/x86/platform/efi/efi_64.c                  | 190 ++++--------------------
>  arch/x86/platform/efi/quirks.c                  |  44 +++---
>  arch/x86/platform/uv/bios_uv.c                  | 164 +++++++++++++++++++-
>  drivers/firmware/efi/arm-init.c                 | 107 ++++++++++++-
>  drivers/firmware/efi/efi.c                      |   2 +-
>  drivers/firmware/efi/fake_mem.c                 |  43 +++---
>  drivers/firmware/efi/memmap.c                   |  95 ++++++++----
>  include/linux/efi.h                             |  17 ++-
>  16 files changed, 471 insertions(+), 341 deletions(-)

Thanks Ard, I've applied these and the 3 fixes in the second series to 
tip:efi/core. It all merged nicely and looks good here. Let me know if 
there's anything amiss.

Thanks,

	Ingo