Re: [GIT PULL] AMD microcode fixes for 3.11

From: Ingo Molnar
Date: Wed Aug 14 2013 - 06:17:50 EST



* Borislav Petkov <bp@xxxxxxxxx> wrote:

> Hi guys,
>
> the tag message should explain it all so please pull.
>
> Thanks.
>
> The following changes since commit d4e4ab86bcba5a72779c43dc1459f71fea3d89c8:
>
> Linux 3.11-rc5 (2013-08-11 18:04:20 -0700)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git tags/amd_ucode_fixes
>
> for you to fetch changes up to 84516098b58e05821780dc0b89abcee434b4dca5:
>
> x86, microcode, AMD: Fix early microcode loading (2013-08-12 18:32:45 +0200)
>
> ----------------------------------------------------------------
> Those are basically two fixes which correct the AMD early ucode loader
> from accessing cpu_data too early, i.e. before smp_store_cpu_info()
> has copied the boot_cpu_data ontop and overwritten an already empty
> structure (which we shouldn't access that early in the first place
> anyway).
>
> The second patch is kinda largish for that late in the game but it
> shouldn't be problematic because we're simply switching from using
> cpu_data to use the CPU family number directly and thus again, not use
> uninitialized cpu_data structure.
>
> ----------------------------------------------------------------
> Torsten Kaiser (2):
> x86, microcode, AMD: Make cpu_has_amd_erratum() use the correct struct cpuinfo_x86
> x86, microcode, AMD: Fix early microcode loading
>
> arch/x86/include/asm/microcode_amd.h | 2 +-
> arch/x86/kernel/cpu/amd.c | 20 +++++---------------
> arch/x86/kernel/microcode_amd.c | 27 +++++++++++++--------------
> arch/x86/kernel/microcode_amd_early.c | 27 +++++++++++++--------------
> 4 files changed, 32 insertions(+), 44 deletions(-)

Pulled into x86/urgent, thanks Boris!

Ingo
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