diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-11-01 14:27:38 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-11-01 14:27:38 -0300 |
| commit | 1eae9639aac0f8de4d284f567ec722a822b52513 (patch) | |
| tree | 34e45a5c5e6a1033a444bea952ba9199e57f3a19 /arch/parisc/kernel/setup.c | |
| parent | 037d32aa8f748e39844d2a5b607fb063b4583843 (diff) | |
Linux-libre 4.8.6-gnupck-4.8.6-gnu
Diffstat (limited to 'arch/parisc/kernel/setup.c')
| -rw-r--r-- | arch/parisc/kernel/setup.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index f7ea626e2..81d6f6391 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -38,6 +38,7 @@ #include <linux/export.h> #include <asm/processor.h> +#include <asm/sections.h> #include <asm/pdc.h> #include <asm/led.h> #include <asm/machdep.h> /* for pa7300lc_init() proto */ @@ -140,6 +141,13 @@ void __init setup_arch(char **cmdline_p) #endif printk(KERN_CONT ".\n"); + /* + * Check if initial kernel page mappings are sufficient. + * panic early if not, else we may access kernel functions + * and variables which can't be reached. + */ + if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE) + panic("KERNEL_INITIAL_ORDER too small!"); pdc_console_init(); |