bool
default y
+config GENERIC_CMOS_UPDATE
+ bool
+ default y
+
config CLOCKSOURCE_WATCHDOG
bool
default y
However, when run without a hypervisor the kernel is
theoretically slower. If in doubt, say N.
+source "arch/i386/xen/Kconfig"
+
config VMI
bool "VMI Paravirt-ops support"
depends on PARAVIRT
config HIGHMEM64G
bool "64GB"
depends on !M386 && !M486
+ select X86_PAE
help
Select this if you have a 32-bit processor and more than 4
gigabytes of physical RAM.
config VMSPLIT_3G
bool "3G/1G user/kernel split"
config VMSPLIT_3G_OPT
- depends on !HIGHMEM
+ depends on !X86_PAE
bool "3G/1G user/kernel split (for full 1G low memory)"
config VMSPLIT_2G
bool "2G/2G user/kernel split"
config VMSPLIT_2G_OPT
- depends on !HIGHMEM
+ depends on !X86_PAE
bool "2G/2G user/kernel split (for full 2G low memory)"
config VMSPLIT_1G
bool "1G/3G user/kernel split"
default y
config X86_PAE
- bool
- depends on HIGHMEM64G
- default y
+ bool "PAE (Physical Address Extension) Support"
+ default n
+ depends on !HIGHMEM4G
select RESOURCES_64BIT
+ help
+ PAE is required for NX support, and furthermore enables
+ larger swapspace support for non-overcommit purposes. It
+ has the cost of more pagetable lookup overhead, and also
+ consumes more pagetable space per process.
# Common NUMA Features
config NUMA
config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
+ default "0x1000000" if X86_NUMAQ
default "0x100000"
help
This gives the physical address where the kernel is loaded.
source "fs/Kconfig"
-menu "Instrumentation Support"
+menuconfig INSTRUMENTATION
+ bool "Instrumentation Support"
depends on EXPERIMENTAL
+ default y
+
+if INSTRUMENTATION
source "arch/i386/oprofile/Kconfig"
config KPROBES
- bool "Kprobes (EXPERIMENTAL)"
- depends on KALLSYMS && EXPERIMENTAL && MODULES
+ bool "Kprobes"
+ depends on KALLSYMS && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
a probepoint and specifies the callback. Kprobes is useful
for kernel debugging, non-intrusive instrumentation and testing.
If in doubt, say "N".
-endmenu
+
+endif # INSTRUMENTATION
source "arch/i386/Kconfig.debug"