diff options
Diffstat (limited to 'arch/parisc/mm/init.c')
| -rw-r--r-- | arch/parisc/mm/init.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 74842d28a7a1..f88a52b8531c 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -494,12 +494,8 @@ static void __init map_pages(unsigned long start_vaddr, pte = pte_mkhuge(pte); } - if (address >= end_paddr) { - if (force) - break; - else - pte_val(pte) = 0; - } + if (address >= end_paddr) + break; set_pte(pg_table, pte); @@ -515,6 +511,19 @@ static void __init map_pages(unsigned long start_vaddr, } } +void __init set_kernel_text_rw(int enable_read_write) +{ + unsigned long start = (unsigned long)__init_begin; + unsigned long end = (unsigned long)_etext; + + map_pages(start, __pa(start), end-start, + PAGE_KERNEL_RWX, enable_read_write ? 1:0); + + /* force the kernel to see the new page table entries */ + flush_cache_all(); + flush_tlb_all(); +} + void __ref free_initmem(void) { unsigned long init_begin = (unsigned long)__init_begin; |