diff options
Diffstat (limited to 'arch/riscv/mm/init.c')
| -rw-r--r-- | arch/riscv/mm/init.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index dfb5e4f7a670..4faf8bd157ea 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -135,11 +135,16 @@ void __init setup_bootmem(void) /* * Reserve from the start of the kernel to the end of the kernel - * and make sure we align the reservation on PMD_SIZE since we will + */ +#if defined(CONFIG_64BIT) && defined(CONFIG_STRICT_KERNEL_RWX) + /* + * Make sure we align the reservation on PMD_SIZE since we will * map the kernel in the linear mapping as read-only: we do not want * any allocation to happen between _end and the next pmd aligned page. */ - memblock_reserve(vmlinux_start, (vmlinux_end - vmlinux_start + PMD_SIZE - 1) & PMD_MASK); + vmlinux_end = (vmlinux_end + PMD_SIZE - 1) & PMD_MASK; +#endif + memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start); /* * memblock allocator is not aware of the fact that last 4K bytes of @@ -640,7 +645,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) #endif } -#if defined(CONFIG_64BIT) && !defined(CONFIG_XIP_KERNEL) +#if defined(CONFIG_64BIT) && defined(CONFIG_STRICT_KERNEL_RWX) void protect_kernel_linear_mapping_text_rodata(void) { unsigned long text_start = (unsigned long)lm_alias(_start); |