Re: [GIT PULL] EFI urgent fixes

From: Ingo Molnar
Date: Fri Sep 26 2014 - 07:35:22 EST



* Paul Bolle <pebolle@xxxxxxxxxx> wrote:

> On Thu, 2014-09-25 at 16:41 +0200, Ingo Molnar wrote:
> > * 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 +-
>
> This Makefile was changed in the first patch. That became 84be880560fb
> ("Revert "efi/x86: efistub: Move shared dependencies to <asm/efi.h>""),
> which just landed in next-20140926.
>
> It appears to have introduced a typo, because:
> CONFIG_EFI_ARM_STUB
>
> should probably have been:
> CONFIG_EFI_ARMSTUB

A delta fix would be nice at this point, I've got the x86 side
tested and besides this build bug it's ready to go to Linus.

Thanks,

Ingo
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