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Documentation: Update release notes for x86_64 

Change-Id: I7d8d39bde3b3364ff6ce93030aa2bab34598acd8
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44781
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Patrick Rudolph 2020-08-25 20:59:59 +02:00
parent cecd7af959
commit e828663392
1 changed files with 9 additions and 0 deletions
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Documentation/releases/coreboot-4.13-relnotes.md
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@ -49,4 +49,13 @@ the 64K segment to accomodate additional CPUs and in theory allows as many
CPU threads as possible limited only by SMRAM space and not by 64K. By default
this loader version is disabled. Please see cpu/x86/Kconfig for more info.
### Initial support for x86_64
The x86_64 code support has been revived and enabled for qemu. While it started
as PoC and the only supported platform is an emulator, there's interest in
enabling additional platforms. It would allow to access more than 4GiB of memory
at runtime and possibly brings optimised code for faster execution times.
It still needs changes in assembly, fixed integer to pointer conversions in C,
wrappers for blobs, support for running Option ROMs, among other things.
### Add significant changes here