diff options
| author | Ian Moffett <ian@osmora.org> | 2025-09-14 21:05:47 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-09-14 21:05:47 -0400 |
| commit | f472f53bdf80c17f3b97feaca9d623b57945653f (patch) | |
| tree | 7679684a5ea3ab64032ef0446f90298b854ab632 /src/sys/arch/amd64 | |
| parent | 819e76156b9b955074a58bc177965a3d65d837ae (diff) | |
kern/amd64: mmu: Use CR4 not CR0 for CR4.L57
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'src/sys/arch/amd64')
| -rw-r--r-- | src/sys/arch/amd64/cpu/mmu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/sys/arch/amd64/cpu/mmu.c b/src/sys/arch/amd64/cpu/mmu.c index e61e0b0..25fca35 100644 --- a/src/sys/arch/amd64/cpu/mmu.c +++ b/src/sys/arch/amd64/cpu/mmu.c @@ -146,16 +146,16 @@ __mmu_read_cr3(void) static inline pglvl_t mmu_pg_level(void) { - uint64_t cr0; + uint64_t cr4; __ASMV( - "mov %%cr0, %0" - : "=r" (cr0) + "mov %%cr4, %0" + : "=r" (cr4) : : "memory" ); - if (ISSET(cr0, CR4_L5_PAGING)) { + if (ISSET(cr4, CR4_L5_PAGING)) { return MMU_L5; } |