still takes one (and just doesn't use it). Noone uses it anyway, so
nothing should break by taking it away.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
xen-unstable.hg but it doesn't add itself to any of the Makefiles but
just as a subdirectory of consoled. There's a README in the directory
that should be read otherwise you won't be able to do anything useful
with it :-)
Right now, we can get pretty far before seeing data corruption.
Previously, we'd see it almost immediately (after ~600 bytes, which is
the max the control channel can hold before filling up).
It's actual general enough that it could be also used to test network
traffic corruption but there are certainly better tools for that.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
does nothing (see ctrl_interface.c:ctrl_chan_write_request()).
The following patch throttles the rate in which consoled writes data to
xcs. With the current values, you get a responsive console but avoid
data corruption in most scenarios.
I'm able to get pretty far in my regression test with this patch. With
higher throttle values I'm able to get even further (but the console
becomes painfully slow).
I implemented proper control channel queuing in xenctld in VM-Tools and
it's pretty nasty stuff. This should prevent corruption for most users
until we can get rid of xcs.
Regards,
Anthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com
1. Converts the shutdown driver and xend to use the store instead of
control messages,
2. Includes Anthony's xenstore notification code, and
3. Changes xend so that sysrq's are no longer sent as "special case"
shutdown messages. Store keys are cheap, so making the sysrq
delivery less obscure is good.
I think I have made all of the appropriate modifications to Xend, but
it is complex, so I may have missed something. Comments are welcome.
Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
three patches to fix a problem with Xend starting consoled. consoled
depends on xenstored to be running and xenstored is started on demand in
Xend. The patches change xenstored to manage its own pidfile, and have
xend start actually start up xenstored.
This patch changes the blktap code mapping pages to user space to be
faster and to allow page lookups to foreign mapped pages through linux
to do direct io. An AIO test driver on this achieves comparable
performance to the in-kernel block-backend.
Signed-off-by: andrew.warfield@cl.cam.ac.uk
and changes xm to simply exec /usr/libexec/xen/xc_console.
I've done a pretty good amount of testing and this seems to clear up all
of the Xend console issues in bugzilla.
This is a pretty big change to Xend though with a lot of deleted code so
I'd appreciate if people more familiar with the Xend codebase could look
through it critically.
In addition to the patch, the following files are no longer used:
tools/python/xen/util/console_client.py
tools/python/xen/xend/XendConsole.py
tools/python/xen/xend/server/SrvConsole.py
tools/python/xen/xend/server/SrvConsoleDir.py
tools/python/xen/xend/server/console.py
Regards,
Anthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
There are several people I am aware of interested in writing non-GPL
tools, and this code is trivial, so they'd just end up writing their
own.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
explicitly specifies a 'com1=' or 'com2=' configuration
string. This prevents users from being surprised when Xen
stops domain0 from accessing serial port registers.
On ia64 we still allow serial ports to get automatically
configured and locked down even if no 'com1' is specified
on the command line. This maintains the default preferred
by the IA64 developers.
Also, the method for specifying 'use existing baud rate'
has changed. Instead of specifying com1=0, you must now
specify e.g., com1=auto
Signed-off-by: Keir Fraser <keir@xensource.com>
instead of directly interfacing with Linux IRQ subsystem. This
allows them to be used in situations where the IRQ subsystem is
not paravirtualised.
Signed-off-by: Keir Fraser <keir@xensource.com>
2) Fix memory leak in domain free
3) Fix error path in read (reported by aq)
4) Move reading of buffer limit to tty reconnect so that changes in
limit take affect more quickly.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Free/setup timer irq on suspend/restore.
Only tested to localhost. Also add initial code for >1 vcpu guests.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Requires permission check every time event is generated.
Requires generalization of permissions: ask arbitrary number of
parents whether it's OK to tell about node (eg. watching
/dir/subdir/x when /dir is deleted: root permissions will now
determine whether we fire event).
Add test that we don't leak information on whether a file exists
or not.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
