diff options
Diffstat (limited to 'dev/Kernel/HALKit/AMD64/HalControlRegister.s')
| -rw-r--r-- | dev/Kernel/HALKit/AMD64/HalControlRegister.s | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/dev/Kernel/HALKit/AMD64/HalControlRegister.s b/dev/Kernel/HALKit/AMD64/HalControlRegister.s new file mode 100644 index 00000000..879d35c1 --- /dev/null +++ b/dev/Kernel/HALKit/AMD64/HalControlRegister.s @@ -0,0 +1,40 @@ +/* ------------------------------------------- + + Copyright ZKA Technologies. + +------------------------------------------- */ + +.globl hal_write_cr3 +.globl hal_write_cr0 +.globl hal_read_cr2 +.globl hal_read_cr3 +.globl hal_read_cr0 +.globl hal_flush_tlb + +.text + +hal_flush_tlb: + call hal_read_cr3 + mov %rcx, %rax + call hal_write_cr3 + ret + +hal_read_cr3: + movq %cr3, %rax + ret + +hal_read_cr0: + movq %rax, %cr0 + ret + +hal_read_cr2: + movq %rax, %cr2 + ret + +hal_write_cr3: + movq %cr3, %rdi + ret + +hal_write_cr0: + movq %cr0, %rdi + ret |