Change in coreboot[master]: arch/x86: Support x86_64 exceptions

[Patrick Rudolph (Code Review)]

Patrick Rudolph has uploaded a new patch set (#28) to the change originally created by Patrick Rudolph. ( https://review.coreboot.org/c/coreboot/+/30117 )

Change subject: arch/x86: Support x86_64 exceptions
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arch/x86: Support x86_64 exceptions

*   Doesn't affect existing x86_32 code.

Tested on qemu using division by zero.
Tested on Lenovo T410 with additional x86_64 patches.

Change-Id: Idd12c90a95cc2989eb9b2a718740a84222193f48
Signed-off-by: Patrick Rudolph 
---
M Documentation/arch/x86/index.md
M src/arch/x86/exception.c
M src/arch/x86/idt.S
M src/arch/x86/include/arch/registers.h
4 files changed, 141 insertions(+), 40 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/17/30117/28