diff options
Diffstat (limited to 'arch/riscv/kernel/setup.c')
| -rw-r--r-- | arch/riscv/kernel/setup.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index 20470e5a7d3c..a834deab31d3 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -24,6 +24,7 @@ #include <asm/cpu_ops.h> #include <asm/early_ioremap.h> #include <asm/setup.h> +#include <asm/set_memory.h> #include <asm/sections.h> #include <asm/sbi.h> #include <asm/tlbflush.h> @@ -252,6 +253,8 @@ void __init setup_arch(char **cmdline_p) if (IS_ENABLED(CONFIG_RISCV_SBI)) sbi_init(); + if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)) + protect_kernel_text_data(); #ifdef CONFIG_SWIOTLB swiotlb_init(1); #endif @@ -281,3 +284,12 @@ static int __init topology_init(void) return 0; } subsys_initcall(topology_init); + +void free_initmem(void) +{ + unsigned long init_begin = (unsigned long)__init_begin; + unsigned long init_end = (unsigned long)__init_end; + + set_memory_rw_nx(init_begin, (init_end - init_begin) >> PAGE_SHIFT); + free_initmem_default(POISON_FREE_INITMEM); +} |