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/openbmc/u-boot/arch/x86/cpu/
H A Dcall32.S6f92ed8f Tue Aug 04 13:33:55 CDT 2015 Simon Glass <sjg@chromium.org> x86: Add a way to call 32-bit code from 64-bit mode

The procedure to drop from 64-bit mode to 32-bit is a bit messy. Add a
function to take care of it. It requires identity-mapped pages and that
the calling code is running below 4GB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
H A DMakefile6f92ed8f Tue Aug 04 13:33:55 CDT 2015 Simon Glass <sjg@chromium.org> x86: Add a way to call 32-bit code from 64-bit mode

The procedure to drop from 64-bit mode to 32-bit is a bit messy. Add a
function to take care of it. It requires identity-mapped pages and that
the calling code is running below 4GB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
/openbmc/u-boot/arch/x86/include/asm/
H A Dcpu.h6f92ed8f Tue Aug 04 13:33:55 CDT 2015 Simon Glass <sjg@chromium.org> x86: Add a way to call 32-bit code from 64-bit mode

The procedure to drop from 64-bit mode to 32-bit is a bit messy. Add a
function to take care of it. It requires identity-mapped pages and that
the calling code is running below 4GB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>