In preparation of changing the way we invoke create_mapping_late() (which is currently invoked twice from the same function), move the TLB flushing it performs from the caller into create_mapping_late() itself, and change it to a TLB maintenance by VA rather than a full flush, which is more appropriate here. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> --- arch/arm64/mm/mmu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 2131521ddc24..9e0ec1a8cd3b 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -356,6 +356,9 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt, __create_pgd_mapping(init_mm.pgd, phys, virt, size, prot, NULL, debug_pagealloc_enabled()); + + /* flush the TLBs after updating live kernel mappings */ + flush_tlb_kernel_range(virt, virt + size); } static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, phys_addr_t end) @@ -438,9 +441,6 @@ void mark_rodata_ro(void) create_mapping_late(__pa_symbol(__start_rodata), (unsigned long)__start_rodata, section_size, PAGE_KERNEL_RO); - /* flush the TLBs after updating live kernel mappings */ - flush_tlb_all(); - debug_checkwx(); } -- 2.7.4 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
