Re: [GIT PULL] EFI urgent fixes

From: Ingo Molnar
Date: Thu Sep 25 2014 - 10:41:36 EST



* Matt Fleming <matt@xxxxxxxxxxxxxxxxx> wrote:

> Folks,
>
> Please consider pulling the following fixes.
>
> The first two are releated to the bug report I got from Linus and Josh
> Boyer, whereby Fedora20 + grub2 systems were no longer booting. Linus
> reverted the offending commit that broke grub2 boot, but that left us in
> a state where Macbooks still didn't boot with EFI. This is fixed with
> the below revert and I'm dropping a noisey boot time efi_printk() based
> on Josh's request and Linus' OK.
>
> The third patch fixes a 32-bit EFI boot stub bug where garbled text is
> displayed on the screen if any of the efi_printk() statements run.
>
> The following changes since commit 3eddc69ffeba092d288c386646bfa5ec0fce25fd:
>
> x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8 (2014-09-14 15:24:31 +0100)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-urgent
>
> for you to fetch changes up to 115c6628a59044958c205f8468a1b3ba3d539e61:
>
> x86/efi: Truncate 64-bit values when calling 32-bit OutputString() (2014-09-24 21:56:46 +0100)
>
> ----------------------------------------------------------------
> * Revert the static library changes from the merge window since they're
> causing issues for Macbooks and Fedora + Grub2 - Matt Fleming
>
> * Delete the misleading "setup_efi_pci() failed!" message which some
> people are seeing when booting EFI - Matt Fleming
>
> * Fix printing strings from the 32-bit EFI boot stub by only passing
> 32-bit addresses to the firmware - Matt Fleming
>
> ----------------------------------------------------------------
> Matt Fleming (3):
> Revert "efi/x86: efistub: Move shared dependencies to <asm/efi.h>"
> x86/efi: Delete misleading efi_printk() error message
> x86/efi: Truncate 64-bit values when calling 32-bit OutputString()
>
> arch/x86/boot/compressed/Makefile | 3 +--
> arch/x86/boot/compressed/eboot.c | 44 +++++++++++++++++++++++----------------
> arch/x86/boot/compressed/eboot.h | 16 ++++++++++++++
> arch/x86/include/asm/efi.h | 24 ---------------------
> drivers/firmware/efi/Makefile | 2 +-
> 5 files changed, 44 insertions(+), 45 deletions(-)
>
> --
> Matt Fleming, Intel Open Source Technology Center

Pulled, thanks Matt!

I'll give it some testing and then send it to Linus with other
x86 fixes.

Thanks,

Ingo
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