Keir Fraser [Tue, 23 Jun 2009 16:25:51 +0000 (17:25 +0100)]
Get rid of hardcoded pathes for stubdom and hotplug scripts
- Have the buid system generate a file which exports the install paths
for the hotplug scripts and stubdom / stubdom-dm
- Move file generation code from tools/python/Makefile into a gmake
macro
in Config.mk to avoid maintenance of three duplicates each with its
own
tweaks and bugs
- Export gmake variables into ioemu as shell variables
for upcoming ioemu patches
- Do above as a gmake macro to avoid maintenance of several duplicates
- Adjust hotplug scripts to find the right xen binaries from the
install directory
- Adjust stubdom-dm to use the install directories
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Thu, 18 Jun 2009 09:20:17 +0000 (10:20 +0100)]
stubdoms: qemu monitor support
Add support for the qemu monitor in a stubdom, the same way the
emulated serial support was added few days ago. The stubdom exports
the monitor as a pty and minios opens a console frontend; qemu in dom0
provides the correspondent backend for this additional pv console that
happens to be the qemu monitor.
Keir Fraser [Tue, 26 May 2009 08:50:35 +0000 (09:50 +0100)]
stubdom: 'file' based disk sharing
Allow 'file' based disks, that are blkback based disks, to be shared
between the guest domain and the stubdom. It does so exploiting the
same exception introduced in the previous patch "stubdoms phy disks
sharing". Now we can remove the hack in stubdom-dm that forces "file"
disks to be opened using blktap instead of blkback.
Keir Fraser [Tue, 19 May 2009 13:17:56 +0000 (14:17 +0100)]
stubdom: Rebuild the ocaml runtime libraries with the options needed
if they are to be linked with object files created by ocamlc and the minios
kernel.
This is needed to build stubdoms written in ocaml.
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Network support is still provided the same way: using the tap
interface, created in qemu using netfront.
The lwip stack is still available to avoid additional compilation
issues.
However the stubdom is not going to have its own vif anymore,
this means that the only vnc server supported is the one in dom0.
You can still enable the vnc server in a stubdom at compile time, if
you want so.
Probably the most important change caused by this patch to xen users
is that you don't have to specify two vif in the stubdom config file
anymore, but just one:
This patch removes the need for a second configuration file for
stubdoms: it is going to be automatically generated by the script
stubdom-dm using command line options and xenstore to find any needed
information.
The configuration script will be placed under /etc/xen/stubdoms and
automatically removed when the domain is destroyed.
The only change needed in xend is not to write on xenstore sdl,
opengl and serial command line options for qemu, because stubdoms do
not support them.
It is safe to remove those two options from xenstore because qemu does
not use xenstore to read commans line options.
Finally this patch fixes blkfront disconnections from backends and
display and xauthority variables for pv guests.
Keir Fraser [Wed, 18 Mar 2009 17:30:13 +0000 (17:30 +0000)]
ioemu-stubdom: Use xen-setup-stubdom rather than configure
xen-setup runs the upstream configure script, and ends up
autodetecting various properties of the host and then trying to use
them in stubdom, which works badly.
Keir Fraser [Thu, 29 Jan 2009 16:41:48 +0000 (16:41 +0000)]
stubdom: add videoram to stubdom initial memory reservation
This patch adds a videoram parameter (4MB is the default) to pv guests
too: if the pv guest is actually a stubdomain then the videoram size
is added to the initial required available memory.
This way there is no risk that a stubdom fails to populate the
videoram because the RAM freed for the videoram by dom0 has already
been used to create the stubdom.
Keir Fraser [Fri, 9 Jan 2009 16:56:54 +0000 (16:56 +0000)]
stubdom: Fix compilation after libelf header changes
Changeset 19011:7df072566b8c moved some of the libelf headers.
However, no changes were made to stubdom/Makefile.
stubdom/Makefile unfortunately contains embedded in it knowledge about
the header directory structures, and must therefore typically be
updated if new header directories are created.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Keir Fraser [Mon, 5 Jan 2009 11:19:16 +0000 (11:19 +0000)]
Download external tarballs from xenbits.xensource.com
I have copied the tarballs that the xen-unstable build downloads to
xenbits.xensource.com (which also hosts our hg and git). This patch
changes the download URLs to use that location.
That way the build will depend on only one external machine, under one
administration, rather than many. Also it means that the build won't
break if these sites become permanently unavailable or are rearranged
and we don't run a risk of having to panic and beg if a file should go
missing.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Replace the stubdom/ioemu link farm creation in stubdom/Makefile,
with code which arranges that:
* No symlinks are made for output files - in particular, any
symlinks for .d files would be written through by the compiler
and cause damage to the original tree and other strange
behaviours
* All subdirectories are made as local subdirectories rather than
links
* Any interrupted or half-completed creation of the link farm
leaves the directory in a state where the link farming will be
restarted
* We use make's inherent ability to test for the existence of files
rather than using [ -f ... ] at the start of the rule's commands
* The list of files to be excluded from the link farm can be
easily updated
etc.
This should fix some problems particularly with parallel builds,
or by-hand builds where directories are entered in other than the
usual order.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
$(XEN_ROOT) absolutification fixes for ioemu-remote (incl stubdom)
* Move code for generating an absolute version of XEN_ROOT
into a common make variable set in Config.mk
* Use this common code when invoking make -C ioemu-dir clean
from tools/, which avoids a problem where `make clean' fails
because qemu's (ioemu-remote's) build system wants to run
`make clean' in `tests' but XEN_ROOT is a confection involving
../'s.
* Use this common code in stubdom/Makefile, instead of $(abspath...)
as the latter is a relatively new feature in GNU make and is not
available in all the places that we want to be able to build
(cf c/s 17997:3f23e01d31985899dbd1660b166f229f1ee74292)
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
make should not have to regenerate the libxc and ioemu directories
since that is part of the mk-headers target. Use the subdirectory
clean targets instead to clean just the object files.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
This adds fixes to the stub domain build into compiling Ian Jackson's
qemu-xen. The most notable change is that mini-os headers now
#include each other through a mini-os/ prefix, so that we can turn all
-I into -isystem and still be sure that we include Mini-OS headers
(and not qemu's console.h or blktaplib's list.h for instance...).
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
This makes stubdom use the host's gcc instead of downloading/compiling
binutils+gcc. That requires a bunch of changes and even uncovered a
few bugs, but saves a lot of time.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Wed, 18 Jun 2008 08:36:47 +0000 (09:36 +0100)]
Add PV-GRUB
This fetches GRUB1 sources, applies the {graphical, print function,
save default, and ext3_256byte} patches from debian, and applies a
patch to make it work on x86_64 and port it to Mini-OS. By using
libxc, PV-GRUB can then "kexec" the loaded kernel from inside the
domain itself, hence permitting to avoid the security-concerned
pygrub.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Tue, 17 Jun 2008 08:36:25 +0000 (09:36 +0100)]
minios,stubdom: Add OBJ_DIR parameter to compile outside sources,
which permits to easily compile mini-os in various flavors. Also clean
some parts of stubdom build.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Wed, 28 May 2008 08:30:48 +0000 (09:30 +0100)]
stubdom: make the build more generic by moving as many stubdom parts
into stubdom/ as possible. That also permits to build all of
ioemu, c and caml stubdoms at the same time.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Tue, 18 Mar 2008 11:27:36 +0000 (11:27 +0000)]
stubdom: support save/restore by passing the -loadvm parameter,
letting the stubdomain access the save area, and having it watch the
correct xenstore node.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Tue, 12 Feb 2008 16:46:23 +0000 (16:46 +0000)]
stubdom: Rename stubdom/*.build into stubdom/*-build, newlib into
newlib-cvs, lwip into lwip-cvs. Fix .hgignore to ignore only them and
not the patches.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser [Tue, 12 Feb 2008 14:35:39 +0000 (14:35 +0000)]
Add stubdomain support. See stubdom/README for usage details.
- Move PAGE_SIZE and STACK_SIZE into __PAGE_SIZE and __STACK_SIZE in
arch_limits.h so as to permit getting them from there without
pulling all the internal Mini-OS defines.
- Setup a xen-elf cross-compilation environment in stubdom/cross-root
- Add a POSIX layer on top of Mini-OS by linking against the newlib C
library and lwIP, and implementing the Unixish part in mini-os/lib/sys.c
- Cross-compile zlib and libpci too.
- Add an xs.h-compatible layer on top of Mini-OS' xenbus.
- Cross-compile libxc with an additional xc_minios.c and a few things
disabled.
- Cross-compile ioemu with an additional block-vbd, but without sound,
tpm and other details. A few hacks are needed:
- Align ide and scsi buffers at least on sector size to permit
direct transmission to the block backend. While we are at it, just
page-align it to possibly save a segment. Also, limit the scsi
buffer size because of limitations of the block paravirtualization
protocol.
- Allocate big tables dynamically rather that letting them go to
bss: when Mini-OS gets installed in memory, bss is not lazily
allocated, and doing so during Mini-OS is unnecessarily trick while
we can simply use malloc.
- Had to change the Mini-OS compilation somehow, so as to export
Mini-OS compilation flags to the Makefiles of libxc and ioemu.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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