ACK: [SRU][focal:gcp/jammy:gcp/noble:gcp][PATCH 0/1] Expose and use the end of the physical memory address space

[Mehmet Basaran]

Acked-by: Mehmet Basaran <mehmet.basaran at canonical.com>

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Magali Lemes <magali.lemes at canonical.com> writes:

> BugLink: https://bugs.launchpad.net/bugs/2080563
>
> [Impact]
> Request from Google to backport "x86/kaslr: Expose and use the end of the
> physical memory address space" to address intermittent CUDA hangs.
>
> [Fix]
> Focal: backport
> Jammy: backport
> Noble: clean cherry-pick
>
> [Test]
> Compile and boot tested.
>
> [Where problems could occur]
> The fix directly affects memory management in x86 systems, specifically
> when KASLR is enabled.
>
> [Other info]
> #SF 00395854
>
> Thomas Gleixner (1):
>   x86/kaslr: Expose and use the end of the physical memory address space
>
>  arch/x86/include/asm/page_64.h          |  1 +
>  arch/x86/include/asm/pgtable_64_types.h |  4 ++++
>  arch/x86/mm/init_64.c                   |  4 ++++
>  arch/x86/mm/kaslr.c                     | 32 ++++++++++++++++++++-----
>  include/linux/mm.h                      |  4 ++++
>  kernel/resource.c                       |  6 ++---
>  mm/memory_hotplug.c                     |  2 +-
>  mm/sparse.c                             |  2 +-
>  8 files changed, 43 insertions(+), 12 deletions(-)
>
> -- 
> 2.34.1
>
>
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
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