1config STATIC_LINK
2	bool "Force a static link"
3	default n
4	help
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
10	  2.75G) for UML.
11
12source "mm/Kconfig"
13
14config LD_SCRIPT_STATIC
15	bool
16	default y
17	depends on STATIC_LINK
18
19config LD_SCRIPT_DYN
20	bool
21	default y
22	depends on !LD_SCRIPT_STATIC
23
24source "fs/Kconfig.binfmt"
25
26config HOSTFS
27	tristate "Host filesystem"
28	help
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
33          this might be:
34
35          mount none /tmp/fromhost -t hostfs -o /tmp/umlshare
36
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
39          wishes to access.
40
41          For more information, see
42          <http://user-mode-linux.sourceforge.net/hostfs.html>.
43
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.
46
47config HPPFS
48	tristate "HoneyPot ProcFS"
49	depends on PROC_FS
50	help
51	  hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
52	  entries to be overridden, removed, or fabricated from the host.
53	  Its purpose is to allow a UML to appear to be a physical machine
54	  by removing or changing anything in /proc which gives away the
55	  identity of a UML.
56
57	  See <http://user-mode-linux.sf.net/old/hppfs.html> for more information.
58
59	  You only need this if you are setting up a UML honeypot.  Otherwise,
60	  it is safe to say 'N' here.
61
62config MCONSOLE
63	bool "Management console"
64	default y
65	help
66          The user mode linux management console is a low-level interface to
67          the kernel, somewhat like the i386 SysRq interface.  Since there is
68          a full-blown operating system running under every user mode linux
69          instance, there is much greater flexibility possible than with the
70          SysRq mechanism.
71
72          If you answer 'Y' to this option, to use this feature, you need the
73          mconsole client (called uml_mconsole) which is present in CVS in
74          2.4.5-9um and later (path /tools/mconsole), and is also in the
75          distribution RPM package in 2.4.6 and later.
76
77          It is safe to say 'Y' here.
78
79config MAGIC_SYSRQ
80	bool "Magic SysRq key"
81	depends on MCONSOLE
82	help
83	  If you say Y here, you will have some control over the system even
84	  if the system crashes for example during kernel debugging (e.g., you
85	  will be able to flush the buffer cache to disk, reboot the system
86	  immediately or dump some status information). A key for each of the
87	  possible requests is provided.
88
89	  This is the feature normally accomplished by pressing a key
90	  while holding SysRq (Alt+PrintScreen).
91
92	  On UML, this is accomplished by sending a "sysrq" command with
93	  mconsole, followed by the letter for the requested command.
94
95	  The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
96	  unless you really know what this hack does.
97
98config KERNEL_STACK_ORDER
99	int "Kernel stack size order"
100	default 1 if 64BIT
101	range 1 10 if 64BIT
102	default 0 if !64BIT
103	help
104	  This option determines the size of UML kernel stacks.  They will
105	  be 1 << order pages.  The default is OK unless you're running Valgrind
106	  on UML, in which case, set this to 3.
107
108config MMAPPER
109	tristate "iomem emulation driver"
110	help
111	  This driver allows a host file to be used as emulated IO memory inside
112	  UML.
113
114config NO_DMA
115	def_bool y
116
117config PGTABLE_LEVELS
118	int
119	default 3 if 3_LEVEL_PGTABLES
120	default 2
121