diff options
Diffstat (limited to 'arch/x86/Kconfig.debug')
| -rw-r--r-- | arch/x86/Kconfig.debug | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index d5b364b43a02..253e7a5706d3 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug | |||
| @@ -6,15 +6,19 @@ config TRACE_IRQFLAGS_SUPPORT | |||
| 6 | source "lib/Kconfig.debug" | 6 | source "lib/Kconfig.debug" |
| 7 | 7 | ||
| 8 | config NONPROMISC_DEVMEM | 8 | config NONPROMISC_DEVMEM |
| 9 | bool "Disable promiscuous /dev/mem" | 9 | bool "Filter access to /dev/mem" |
| 10 | help | 10 | help |
| 11 | The /dev/mem file by default only allows userspace access to PCI | 11 | If this option is left off, you allow userspace access to all |
| 12 | space and the BIOS code and data regions. This is sufficient for | 12 | of memory, including kernel and userspace memory. Accidental |
| 13 | dosemu and X and all common users of /dev/mem. With this config | 13 | access to this is obviously disastrous, but specific access can |
| 14 | option, you allow userspace access to all of memory, including | 14 | be used by people debugging the kernel. |
| 15 | kernel and userspace memory. Accidental access to this is | 15 | |
| 16 | obviously disasterous, but specific access can be used by people | 16 | If this option is switched on, the /dev/mem file only allows |
| 17 | debugging the kernel. | 17 | userspace access to PCI space and the BIOS code and data regions. |
| 18 | This is sufficient for dosemu and X and all common users of | ||
| 19 | /dev/mem. | ||
| 20 | |||
| 21 | If in doubt, say Y. | ||
| 18 | 22 | ||
| 19 | config EARLY_PRINTK | 23 | config EARLY_PRINTK |
| 20 | bool "Early printk" if EMBEDDED | 24 | bool "Early printk" if EMBEDDED |