How to select an executable page in a Linux kernel module?

Question

I am writing a Linux kernel module and I would like to highlight an executable page. Plain kmalloc returns a pointer inside a non-executable page, and I get a kernel panic when I execute the code there. It should work on Ubuntu Karmic x86, 2.6.31-20-generic-pae.

Answer 1

#include <linux/vmalloc.h> #include <asm/pgtype_types.h> ... char *p = __vmalloc(byte_size, GFP_KERNEL, PAGE_KERNEL_EXEC); ... if (p != NULL) vfree(p);