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SubjectRe: [GIT PULL] EFI changes for v4.4

* Matt Fleming <matt@codeblueprint.co.uk> wrote:

> Folks, please pull the following bugfix from Sai which prevents a
> kernel panic when booting an EFI machine with CONFIG_DEBUG_VIRTUAL
> enabled.
>
> This bug was reported last year by Dave Hansen,
>
> https://lkml.kernel.org/r/5462999A.7090706@intel.com
>
> and since nobody else has reported it, and given that it's only
> triggerable with a debug config option, I figured this should be
> targeted at v4.4.
>
> The following changes since commit 0f96a99dab366333439e110d6ad253bc7c557c09:
>
> efi: Add "efi_fake_mem" boot option (2015-10-12 14:20:09 +0100)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-next
>
> for you to fetch changes up to 2c66e24d75d424919c42288b418d2e593fa818b1:
>
> x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled (2015-10-25 10:22:25 +0000)
>
> ----------------------------------------------------------------
> * Fix a kernel panic by not passing EFI virtual mapping addresses to
> __pa() in the x86 pageattr code. Since these virtual addreses are
> not part of the direct mapping or kernel text mapping, passing them
> to __pa() will trigger a BUG_ON() when CONFIG_DEBUG_VIRTUAL is
> enabled - Sai Praneeth Prakhya
>
> ----------------------------------------------------------------
> Sai Praneeth (1):
> x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled
>
> arch/x86/mm/pageattr.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)

Pulled, thanks Matt!

Ingo


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