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106 lines
3.4 KiB
106 lines
3.4 KiB
config STATIC_LINK |
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bool "Force a static link" |
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default n |
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help |
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This option gives you the ability to force a static link of UML. |
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Normally, UML is linked as a shared binary. This is inconvenient for |
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use in a chroot jail. So, if you intend to run UML inside a chroot, |
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you probably want to say Y here. |
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Additionally, this option enables using higher memory spaces (up to |
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2.75G) for UML. |
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source "mm/Kconfig" |
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config LD_SCRIPT_STATIC |
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bool |
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default y |
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depends on STATIC_LINK |
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config LD_SCRIPT_DYN |
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bool |
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default y |
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depends on !LD_SCRIPT_STATIC |
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source "fs/Kconfig.binfmt" |
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config HOSTFS |
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tristate "Host filesystem" |
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help |
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While the User-Mode Linux port uses its own root file system for |
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booting and normal file access, this module lets the UML user |
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access files stored on the host. It does not require any |
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network connection between the Host and UML. An example use of |
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this might be: |
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mount none /tmp/fromhost -t hostfs -o /tmp/umlshare |
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where /tmp/fromhost is an empty directory inside UML and |
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/tmp/umlshare is a directory on the host with files the UML user |
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wishes to access. |
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For more information, see |
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<http://user-mode-linux.sourceforge.net/hostfs.html>. |
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If you'd like to be able to work with files stored on the host, |
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say Y or M here; otherwise say N. |
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config MCONSOLE |
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bool "Management console" |
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depends on PROC_FS |
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default y |
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help |
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The user mode linux management console is a low-level interface to |
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the kernel, somewhat like the i386 SysRq interface. Since there is |
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a full-blown operating system running under every user mode linux |
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instance, there is much greater flexibility possible than with the |
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SysRq mechanism. |
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If you answer 'Y' to this option, to use this feature, you need the |
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mconsole client (called uml_mconsole) which is present in CVS in |
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2.4.5-9um and later (path /tools/mconsole), and is also in the |
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distribution RPM package in 2.4.6 and later. |
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It is safe to say 'Y' here. |
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config MAGIC_SYSRQ |
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bool "Magic SysRq key" |
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depends on MCONSOLE |
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help |
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If you say Y here, you will have some control over the system even |
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if the system crashes for example during kernel debugging (e.g., you |
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will be able to flush the buffer cache to disk, reboot the system |
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immediately or dump some status information). A key for each of the |
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possible requests is provided. |
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This is the feature normally accomplished by pressing a key |
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while holding SysRq (Alt+PrintScreen). |
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On UML, this is accomplished by sending a "sysrq" command with |
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mconsole, followed by the letter for the requested command. |
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The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y |
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unless you really know what this hack does. |
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config KERNEL_STACK_ORDER |
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int "Kernel stack size order" |
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default 1 if 64BIT |
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range 1 10 if 64BIT |
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default 0 if !64BIT |
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help |
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This option determines the size of UML kernel stacks. They will |
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be 1 << order pages. The default is OK unless you're running Valgrind |
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on UML, in which case, set this to 3. |
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config MMAPPER |
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tristate "iomem emulation driver" |
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help |
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This driver allows a host file to be used as emulated IO memory inside |
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UML. |
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config NO_DMA |
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def_bool y |
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config PGTABLE_LEVELS |
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int |
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default 3 if 3_LEVEL_PGTABLES |
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default 2
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