x86/boot/64: Use RIP_REL_REF() to access early page tables
authorArd Biesheuvel <ardb@kernel.org>
Wed, 21 Feb 2024 11:35:12 +0000 (12:35 +0100)
committerIngo Molnar <mingo@kernel.org>
Mon, 26 Feb 2024 11:58:35 +0000 (12:58 +0100)
commiteb54c2ae4a4825c42a6a2b4022926bda7448f735
treedf7b2d9cec5198851e6677dbeb3d1cade5be2035
parent4f8b6cf25f5c119b117cb2a4bacb604a6cd00ff1
x86/boot/64: Use RIP_REL_REF() to access early page tables

The early statically allocated page tables are populated from code that
executes from a 1:1 mapping so it cannot use plain accesses from C.
Replace the use of fixup_pointer() with RIP_REL_REF(), which is better
and simpler.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240221113506.2565718-23-ardb+git@google.com
arch/x86/kernel/head64.c