[U-Boot] [PATCH] x86: Use microcode update from device tree for all processors

Bin Meng
2018-04-05T15:31:34Z

Hi Ivan,

On Thu, Apr 5, 2018 at 7:07 AM, Ivan Gorinov <ivan.gorinov@intel.com> wrote:
> The microcode update data block encoded in Device Tree is used by
> the bootstrap processor (BSP) but not passed to the other CPUs (AP).
>

I don't understand what the bug is here. The AP microcode update is
done in sipi_vector.S.

> If the bootstrap processor successfully performs a microcode update
> from Device Tree, use the same data block for the other processors.
>
> Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
> ---
> arch/x86/cpu/i386/cpu.c | 3 ++-
> arch/x86/cpu/intel_common/car.S | 2 ++
> arch/x86/cpu/intel_common/microcode.c | 10 +++++++---
> arch/x86/include/asm/microcode.h | 1 +
> arch/x86/lib/fsp/fsp_car.S | 2 ++
> 5 files changed, 14 insertions(+), 4 deletions(-)
>

Regards,
Bin