diff options
Diffstat (limited to 'arch/arm64/kernel/head.S')
| -rw-r--r-- | arch/arm64/kernel/head.S | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 6ebd204da16a..4203d5f257bc 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -758,7 +758,7 @@ ENTRY(__early_cpu_boot_status) */ .section ".idmap.text", "ax" __enable_mmu: - mrs x18, sctlr_el1 // preserve old SCTLR_EL1 value + mrs x22, sctlr_el1 // preserve old SCTLR_EL1 value mrs x1, ID_AA64MMFR0_EL1 ubfx x2, x1, #ID_AA64MMFR0_TGRAN_SHIFT, 4 cmp x2, #ID_AA64MMFR0_TGRAN_SUPPORTED @@ -786,14 +786,15 @@ __enable_mmu: * to take into account by discarding the current kernel mapping and * creating a new one. */ - msr sctlr_el1, x18 // disable the MMU + msr sctlr_el1, x22 // disable the MMU isb bl __create_page_tables // recreate kernel mapping msr sctlr_el1, x19 // re-enable the MMU isb - ic ialluis // flush instructions fetched - isb // via old mapping + ic iallu // flush instructions fetched + dsb nsh // via old mapping + isb add x27, x27, x23 // relocated __mmap_switched #endif br x27 |