55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
================================
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Genode's Rump Kernel kernel port
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================================
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This repository contains the Genode version of the
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[http://wiki.netbsd.org/rumpkernel/ - rump kernel].
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The kernel is currently used to gain file-system access from within Genode.
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In order to achieve that, the rump kernel is integrated into a VFS plugin,
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located at _src/lib/vfs/rump_. It can thereby by used directly by libc
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applications, or indirectly by using the VFS-server component.
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Building instructions
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#####################
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In order to build the VFS plugin, issue
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! ./tool/ports/prepare_port dde_rump
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from Genode's toplevel directory.
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Add
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! REPOSITORIES += $(GENODE_DIR)/repos/dde_rump
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to your _etc/build.conf_ file of you build directory.
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Finally,
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! make lib/vfs/rump
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called from your build directory will build the plugin.
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Configuration
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#############
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Here is an example snippet that configures the VFS plugin:
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| <rump fs="msdos" ram="7M" writeable="yes"/>"
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The VFS plugin obtains a block session. If there is more than one block
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session in the system, the block session must be routed to the right
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block-session server. The value of the _fs_ attribute can be one of the
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following: _ext2fs_ for EXT2, _cd9660_ for ISO-9660, or _msdos_ for FAT
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file-system support. When accessing a _msdos_ file system, the optional
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attribute 'gemdos="yes"' can be specified to operate in GEMDOS compatibility
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mode.
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The VFS plugin hands over the specified amount of RAM quota to the rump
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kernel. The larger the quota is, the larger the internal block caches of the
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rump kernel will be.
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