2 bool "Force a static link"
5 This option gives you the ability to force a static link of UML.
6 Normally, UML is linked as a shared binary. This is inconvenient for
7 use in a chroot jail. So, if you intend to run UML inside a chroot,
8 you probably want to say Y here.
9 Additionally, this option enables using higher memory spaces (up to
14 config LD_SCRIPT_STATIC
17 depends on STATIC_LINK
22 depends on !LD_SCRIPT_STATIC
24 source "fs/Kconfig.binfmt"
27 tristate "Host filesystem"
29 While the User-Mode Linux port uses its own root file system for
30 booting and normal file access, this module lets the UML user
31 access files stored on the host. It does not require any
32 network connection between the Host and UML. An example use of
35 mount none /tmp/fromhost -t hostfs -o /tmp/umlshare
37 where /tmp/fromhost is an empty directory inside UML and
38 /tmp/umlshare is a directory on the host with files the UML user
41 For more information, see
42 <http://user-mode-linux.sourceforge.net/hostfs.html>.
44 If you'd like to be able to work with files stored on the host,
45 say Y or M here; otherwise say N.
48 bool "Management console"
52 The user mode linux management console is a low-level interface to
53 the kernel, somewhat like the i386 SysRq interface. Since there is
54 a full-blown operating system running under every user mode linux
55 instance, there is much greater flexibility possible than with the
58 If you answer 'Y' to this option, to use this feature, you need the
59 mconsole client (called uml_mconsole) which is present in CVS in
60 2.4.5-9um and later (path /tools/mconsole), and is also in the
61 distribution RPM package in 2.4.6 and later.
63 It is safe to say 'Y' here.
66 bool "Magic SysRq key"
69 If you say Y here, you will have some control over the system even
70 if the system crashes for example during kernel debugging (e.g., you
71 will be able to flush the buffer cache to disk, reboot the system
72 immediately or dump some status information). A key for each of the
73 possible requests is provided.
75 This is the feature normally accomplished by pressing a key
76 while holding SysRq (Alt+PrintScreen).
78 On UML, this is accomplished by sending a "sysrq" command with
79 mconsole, followed by the letter for the requested command.
81 The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
82 unless you really know what this hack does.
84 config KERNEL_STACK_ORDER
85 int "Kernel stack size order"
90 This option determines the size of UML kernel stacks. They will
91 be 1 << order pages. The default is OK unless you're running Valgrind
92 on UML, in which case, set this to 3.
95 tristate "iomem emulation driver"
97 This driver allows a host file to be used as emulated IO memory inside
103 config PGTABLE_LEVELS
105 default 3 if 3_LEVEL_PGTABLES