Files
system76-coreboot/src/cpu
Patrick Rudolph 9256e51f48 cpu/x86/smm/smmhandler: Fix x86_64 assembly exit
Fix an issue the assembler didn't warn about to fix a crash on real
hardware. qemu didn't catch this issue either.

The linker uses the same address for variables in BSS if they aren't
initialized in the code. This results in %edx being set to the value
of %eax, which causes an exception restoring IA32_EFER on real
hardware.

Tested on qemu with KVM enabled.

Change-Id: Ie36a88a2a11a6d755f06eff9b119e5b9398c6dec
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44780
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-08-30 14:48:35 +00:00
..
2020-07-11 14:48:25 +00:00