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

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