RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 05:47:34 +00:00
Code Issues Activity Actions

Kernel/aarch64: Add helper to get the current TTBR0_EL1

Browse source
This commit is contained in:
Timon Kruiper 2023-01-24 19:25:45 +01:00 • committed by Andreas Kling
parent d9946c8e89
commit 9e90932bfb
1 changed files with 8 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Kernel/Arch/aarch64/ASM_wrapper.h
View file

@ -24,6 +24,14 @@ inline void set_ttbr0_el1(FlatPtr ttbr0_el1)
asm("msr ttbr0_el1, %[value]" ::[value] "r"(ttbr0_el1));
}
inline FlatPtr get_ttbr0_el1()
{
FlatPtr ttbr0_el1;
asm("mrs %[value], ttbr0_el1\n"
: [value] "=r"(ttbr0_el1));
return ttbr0_el1;
}
inline void set_sp_el1(FlatPtr sp_el1)
{
asm("msr sp_el1, %[value]" ::[value] "r"(sp_el1));