- page is moved next to store/console pages -- these are never put in the
free page pool by the domain
- xen_start_info is now a pointer to the original page instead of the copy
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Mostly this makes the tap code work again with all of the changes that
have happened to the block drivers recently. We now use a shared page
per VBD (to the driver), and handle control information through the
store. The taplib interfaces have changed to be based around per-vbd
data structures that you can attach arbitrary handlers for.
There is also initial code for a user-level blockback driver, which
aims to get around the use of loopbacks for file-based vbds. Still
plenty of work to do here -- this is a working incremental checkin and
I'm away from this for the next four weeks.
Signed-off-by: Andrew Warfield <andrew.warfield@cl.cam.ac.uk>
- translate console mfn to pfn
- unbind/bind console evtchn
- recover console mfn on restore
- trigger xenconsoled refresh after mfn is put in store
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Also add simple read/write/rm clients for command line access to the
store (using the xenbus_dev store connection).
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
The driver exports xs_talkv to user-space, allowing programs running in
the domain to use the kernel's xenbus connection. Intended use is driver
domain device configuration where the driver domain is not the domain
running xenstored.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
mechanism provides richer I/O operation semantics, such as and,or,xor
operation on MMIO space. This is necessary for operating systems such
as Windows XP and Windows 2003.
This is the first part of a two part patch. This patch applies to ioemu.
Signed-Off-By: Leendert van Doorn <leendert@watson.ibm.com>
mechanism provides richer I/O operation semantics, such as and,or,xor
operation on MMIO space. This is necessary for operating systems such
as Windows XP and Windows 2003.
This is the second part of a two part patch. This patch applies to xen.
Signed-Off-By: Leendert van Doorn <leendert@watson.ibm.com>
When pcnet_receive calls pcnet_poll, which polls the receive and the send
rings. Whenever there is an element in the send ring that is owned by
the Lance chip it will call pcnet_transmit and send it. When the element
is the endp(acket), pcnet_transmit will copy it out, send the packet
(qemu_send_packet) and then clear the owner bit. Somewherer along the
qemu_send_packet execution path, pcnet_recieve is called again, which
calls pcnet_poll and starts this whole process again. This very rapidly
leads to a stack overflow and crashes qemu.
The fix is simple, stop the recursion. Once the packet is copied into
qemu datatstructure (before qemu_send_packet is called!), the owner bit
on the ring element should be cleared.
Signed-Off-By: Leendert van Doorn <leendert@watson.ibm.com>
Double-compile is used to make both 64-bit guest and 32-bit guest can
work, the shadow page-table uses current 64-bit shadow code's structure
to simulate 32-bit guest's 2-level page-table.
Signed-off-by: Chengyuan Li <chengyuan.li@intel.com>
Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
* adds a get_ssid ACM command that allows privileged domains to retrieve
types for either a given ssid reference or a given domain id (of a running
domain); this command can be used to extend access control into device
domains, e.g., to control network traffic currently moving through Domain
0 uncontrolled by the ACM policy
* adds a script getlabel.sh that allows users inside Dom0 to retrieve the
label for a given ssid reference or a given domain id (multiple labels
might map onto a single ssid reference)
* cleans up label-related code in tools/security by merging common
functions into labelfuncs.sh
* cleans up ACM code related to above changes (eventually approximating a
common coding style)
Signed-off-by Reiner Sailer <sailer@us.ibm.com>
Signed-off by Stefan Berger <stefanb@us.ibm.com>
Also, I imagine cramfs is used frequently for initrds so it's probably a good
idea to support it out of the box.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
when rebooting a domain. This prevents the lingering request from
being re-fulfilled, such as when executing a subsequent sysrq request.
Signed-off-by: Dan Smith <danms@us.ibm.com>
against bogus front-end drivers, plus various small cleanups. Note that
there is now only /one/ config option controlling the use of grant tables
with networking (not separate ones for rx and tx).
An outstanding issue is that console reconnect after a restore causes badness.
Signed-off-by: Steven Hand <steven@xensource.com>
Move the hotplug script from /etc/hotplug.d/xen-backend/backend.hotplug
to /etc/hotplug/xen-backend.agent, which seems to be a more common place
for the script.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
--HG--
rename : tools/examples/backend.hotplug => tools/examples/xen-backend.agent
Having sysrq is regularly handy. Following in the tradition set by the
various consoles for virtual ppc stuff, the sysrq key is ^O.
Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Fix the problem where /var/log/xend.log was getting closed and then
/var/log/xend-debug was getting all the spam about the fd being closed
in the logging stuff.
Basically what was happening is that the main thread wasn't sticking
around and during its exit, the atexit handlers of the python logging
stuff got called closing the log fd.
Patch makes it so that we instead wait on the real server threads to
exit before shutting things down.
Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
