+config DEFCONFIG_LIST
+ string
+ option defconfig_list
+ default "arch/$ARCH/defconfig"
+
# UML uses the generic IRQ sugsystem
config GENERIC_HARDIRQS
bool
default y
-config USERMODE
+config UML
bool
default y
-# XXX: does UM have a mmu/swap?
config MMU
bool
default y
config PCI
bool
-config UID16
+config PCMCIA
+ bool
+
+# Yet to do!
+config TRACE_IRQFLAGS_SUPPORT
+ bool
+ default n
+
+config LOCKDEP_SUPPORT
bool
default y
-config RWSEM_GENERIC_SPINLOCK
+config STACKTRACE_SUPPORT
bool
default y
bool
default y
+config GENERIC_BUG
+ bool
+ default y
+ depends on BUG
+
+# Used in kernel/irq/manage.c and include/linux/irq.h
+config IRQ_RELEASE_METHOD
+ bool
+ default y
+
menu "UML-specific options"
config MODE_TT
- bool "Tracing thread support"
- default y
+ bool "Tracing thread support (DEPRECATED)"
+ default n
+ depends on BROKEN
help
This option controls whether tracing thread support is compiled
- into UML. Normally, this should be set to Y. If you intend to
- use only skas mode (and the host has the skas patch applied to it),
- then it is OK to say N here.
+ into UML. This option is largely obsolete, given that skas0 provides
+ skas security and performance without needing to patch the host.
+ It is safe to say 'N' here; saying 'Y' may cause additional problems
+ with the resulting binary even if you run UML in SKAS mode, and running
+ in TT mode is strongly *NOT RECOMMENDED*.
config STATIC_LINK
bool "Force a static link"
for use in a chroot jail. So, if you intend to run UML inside a
chroot, and you disable CONFIG_MODE_TT, you probably want to say Y
here.
+ Additionally, this option enables using higher memory spaces (up to
+ 2.75G) for UML - disabling CONFIG_MODE_TT and enabling this option leads
+ to best results for this.
+
+config KERNEL_HALF_GIGS
+ int "Kernel address space size (in .5G units)"
+ default "1"
+ depends on MODE_TT
+ help
+ This determines the amount of address space that UML will allocate for
+ its own, measured in half Gigabyte units. The default is 1.
+ Change this only if you need to boot UML with an unusually large amount
+ of physical memory.
config MODE_SKAS
- bool "Separate Kernel Address Space support"
+ bool "Separate Kernel Address Space support" if MODE_TT
default y
help
This option controls whether skas (separate kernel address space)
- support is compiled in. If you have applied the skas patch to the
- host, then you certainly want to say Y here (and consider saying N
- to CONFIG_MODE_TT). Otherwise, it is safe to say Y. Disabling this
- option will shrink the UML binary slightly.
+ support is compiled in.
+ Unless you have specific needs to use TT mode (which applies almost only
+ to developers), you should say Y here.
+ SKAS mode will make use of the SKAS3 patch if it is applied on the host
+ (and your UML will run in SKAS3 mode), but if no SKAS patch is applied
+ on the host it will run in SKAS0 mode, which is anyway faster than TT
+ mode.
-source "arch/um/Kconfig_arch"
+source "arch/um/Kconfig.arch"
+source "mm/Kconfig"
config LD_SCRIPT_STATIC
bool
config HPPFS
tristate "HoneyPot ProcFS (EXPERIMENTAL)"
- depends on BROKEN
+ depends on EXPERIMENTAL
help
hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
entries to be overridden, removed, or fabricated from the host.
You only need this if you are setting up a UML honeypot. Otherwise,
it is safe to say 'N' here.
- If you are actively using it, please ask for it to be fixed. In this
- moment, it does not work on 2.6 (it works somehow on 2.4).
-
config MCONSOLE
bool "Management console"
default y
The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
-config HOST_2G_2G
- bool "2G/2G host address space split"
- default n
- help
- This is needed when the host on which you run has a 2G/2G memory
- split, instead of the customary 3G/1G.
-
- Note that to enable such a host
- configuration, which makes sense only in some cases, you need special
- host patches.
-
- So, if you do not know what to do here, say 'N'.
-
config SMP
bool "Symmetric multi-processing support (EXPERIMENTAL)"
default n
- depends on MODE_TT && EXPERIMENTAL
+ #SMP_BROKEN is for x86_64.
+ depends on MODE_TT && EXPERIMENTAL && (!SMP_BROKEN || (BROKEN && SMP_BROKEN))
help
This option enables UML SMP support.
It is NOT related to having a real SMP box. Not directly, at least.
set to the host's CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS.
Only change this if you are running nested UMLs.
-config KERNEL_HALF_GIGS
- int "Kernel address space size (in .5G units)"
- default "1"
+config HIGHMEM
+ bool "Highmem support (EXPERIMENTAL)"
+ depends on !64BIT && EXPERIMENTAL
+ default n
help
- This determines the amount of address space that UML will allocate for
- its own, measured in half Gigabyte units. The default is 1.
- Change this only if you need to boot UML with an unusually large amount
- of physical memory.
+ This was used to allow UML to run with big amounts of memory.
+ Currently it is unstable, so if unsure say N.
-config HIGHMEM
- bool "Highmem support"
- depends on BROKEN
+ To use big amounts of memory, it is recommended to disable TT mode (i.e.
+ CONFIG_MODE_TT) and enable static linking (i.e. CONFIG_STATIC_LINK) -
+ this should allow the guest to use up to 2.75G of memory.
config KERNEL_STACK_ORDER
int "Kernel stack size order"
UML and spend long times with UML stopped at a breakpoint. In this
case, when UML is restarted, it will call the timer enough times to make
up for the time spent at the breakpoint. This could result in a
- noticable lag. If this is a problem, then disable this option.
+ noticeable lag. If this is a problem, then disable this option.
endmenu
source "init/Kconfig"
-source "drivers/base/Kconfig"
-
-source "arch/um/Kconfig_char"
-
source "drivers/block/Kconfig"
-config NETDEVICES
- bool
- default NET
+source "arch/um/Kconfig.char"
-source "arch/um/Kconfig_net"
+source "drivers/base/Kconfig"
source "net/Kconfig"
+source "arch/um/Kconfig.net"
+
+source "drivers/net/Kconfig"
+
+source "drivers/connector/Kconfig"
+
source "fs/Kconfig"
source "kernel/vserver/Kconfig"
depends on SCSI
default y
-source "arch/um/Kconfig_scsi"
+source "arch/um/Kconfig.scsi"
endmenu
git://git.onelab.eu / linux-2.6.git / blobdiff