Import lib/math.c functions (and thus licence) from FreeBSD 8,
and re-apply a few of our changes. Whitespaces left aside, this
leads to almost no source change except s/int64_t/quad_t/ and
s/uint64_t/u_quad_t/.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Changeset df1348e72390 actually completely replaced the freebsd printf
implementation with the Linux printf implementation. Further changes
are extremely minor and thus don't pose IP issue. Fix the licence
accordingly.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Add two "special" PV consoles to stubdoms that are going to be used
to send and receive the qemu-xen save files on save/restore.
Use the second PV console to send the qemu-xen save file and the third
PV console to receive the qemu-xen save file on restore.
Fix the console shutdown function free_consfront that is called when the
qemu save file is closed.
Stubdom save/restore is still broken with xend.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Its access controls are really not OK. In particular, it's not good for
libxl, which stores per-VM config blobs in a directory that is exported
to all VMs.
This will break stub-qemu save/restore, which is the only user of
fs-front that I'm aware of, but:
- It's currently broken anyway (fs-back isn't run by default and crashes
if it is run manually); and
- Stefano has a plan to plumb qemu save records through a dedicated
console channel instead.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Replace long/int/short sizes with proper exact-size types for 64bit
architectures. As well as making the code correct, this eliminates a
compiler warning about an uninitialised variable.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Having minios close() call back into the libxc core close routines is
backwards and unexpected. On every other OS the libxc core close
routine calls close().
Export minios specific functions from the minios libxc code to
implement fd closing for each type of xc file handle and simply call
close() in the core close routine.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
This patch eliminate the global variables in libxenctrl (used for
logging and error reporting).
Instead the information which was in the global variables is now in a
new xc_interface* opaque structure, which xc_interface open returns
instead of the raw file descriptor; furthermore, logging is done via
xentoollog.
There are three new parameters to xc_interface_open to control the
logging, but existing callers can just pass "0" for all three to get
the old behaviour.
All libxc callers have been adjusted accordingly.
Also update QEMU_TAG for corresponding qemu change.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
In order to do so it modifies map_frames_ex and do_map_frames to take
an int *err as parameter and return any error that way.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
xenbus_read() and xenbus_write() will allocate memory for error
message if any error occurs, this memory should be freed.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
- xmalloc currently faults if xmalloc_new_page fails due to OOM
- realloc treats xmalloc_hdr.size as the size of just the data region
rather than the total size of data region + headers + padding.
From: James Pendergrass <James.Pendergrass@jhuapl.edu>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Set map_frames_ex's stride parameter to 0 and increment to 1 to avoid
building an explicit list of mfns.
Signed-Off-By: Samuel Thibault <samuel.thibault@ens-lyon.org>
This patch adds support for mmap on /dev/mem in a stubdom; it is
secure because it only works for memory areas that have been
explicitly allowed by the toolstack (xc_domain_iomem_permission).
Incidentally this is all that is needed to make MSI-X passthrough work
with stubdoms.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
As part of making stubdom usable on NetBSD, it is necessary to
restructure the minios headers to avoid conflicts with NetBSD's
crossbuild toolchain.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
The first function is compiled only in case minios is compiled without
newlib, since newlib already provides an implementation for ffs.
On the other hand ffsl and ffsll are always compiled because newlib
misses those functions.
This patch also provides an implementation for __ffsti2 and __ffsdi2
because they are needed by gcc in order to successfully link ffsll.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We could stub them out as unsupported, but we may as well implement
them as they are very simple.
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
These are referenced by the libs that ocamlopt links xenstored to, but
ought not actually get called.
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:
-vif = [ '', 'ip=10.0.1.1,mac=aa:00:00:12:23:34']
+vif = ['ip=10.0.1.1,mac=aa:00:00:12:23:34']
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Add __stack_chk_fail to mini-os and __sprintf_chk __fprintf_chk to
newlib, to cope with ocaml runtimes compiled with -fstack-protector.
From: "George S. Coker, II" <gscoker@alpha.ncsc.mil>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
net/if.h is a standard header but unfortunately lwip doesn't provide
it for any target but linux. Therefore I am adding a net/if.h, with an
empty implementation of the declared functions.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Adding some missing posix function declarations, to get rid of some
qemu-remote compile time warnings.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We can decide to make off_t 64bit instead of implementing the LFS
tricks. Name corresponding functions foo64 to permit simple caml
programs linking.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
I've implemented a grant map for mini-os to support the xc_gnttab_*()
functions, the equivalent of gntdev in linux. This is useful for my
work in putting xenstored in a stub domain.
Signed-off-by: Diego Ongaro <diego.ongaro@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>
markers at its beginning and end, and then link with mini-os.
That permits to stick a bit more to upstream qemu.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
It has to check first if the memory to free is so big as to be freed
directly by free_pages. mini-os domains crash without this patch if
vfb is misconfigured.
Signed-off-by: INAKOSHI Hiroya <inakoshi.hiroya@jp.fujitsu.com>
Samuel Thibault
John Weekes
Stefano Stabellini
Tim Deegan
Keir Fraser
Keir Fraser