Displaying 20 results from an estimated 5000 matches similar to: "How does domain0 export information to guest through xenstore"
2011 Feb 22
8
Xen 4.0.1 HVM 2008R2 Citrix PV Drivers
I have been google for a few days now trying to get the Citrix PV Drivers to work on a server 2008 R2 HVM guest. I get the machine up and running then I install the cirtix PV drivers. I have tried both making and not making the registry change. Once I reboot the server I get stuck at the boot screen.
The xen log says:
XENUTIL: WARNING: CloseFrontend: timed out in
2010 Sep 13
1
what the role platform-pci play in comunication between HVM and domain0
Hi,
Can someone interpret how HVM guest communicate with domain0, as i know, H VM can not use event channel directly, is the platform-pci offer a way to solve this?
Please try to explain concretely, for example :
1.how does HVM send a event to domain0, how does domain0 catch this event, and assoicate it with a handler
2.the opposite direction, how does domain0 send event to HVM guest? Does it
2008 Jul 31
1
Can PV Guest use xenbus_printf to write information to xenstore?
Hi :
As I want to know the information of the VMs that currently runing on the
same physical machine, I''d like to get those VM''s information from xenstore,
such as macaddress. Indeed, what I want is IP address, so, if guest can
write things to xenstore, I''d like it write its IP address into xenstore and
let domain0 reads it directly.
So, can anybody tell me whether a PV
2008 Sep 26
6
Mapping hvm guest pages in Dom0
hello,
I would like to map (Read/Write) pages owned by a HVM guest from my Dom0
Linux kernel module. I have access to the "machine frame numbers" of these
pages.
1. What is the right interface to do this? kmap needs ''struct page'' ptrs
which I doubt exist for pages owned by a HVM guest. Is there a hypercall to
do this then?
2. Do I need to modify the HVM behavior in
2005 Jun 16
9
Re: dom0 bootstrap for xenstore
On Thu, 2005-06-16 at 06:17 +0100, Keir Fraser wrote:
> > I suggested that we simply mmap /dev/kmem for the xenstored to access
> > the domain0 page for the moment. That doesn''t work: we''ll do something
> > else.
>
> Just use xc_map_foreign_range(), as you would for mapping any other
> domain''s xenstore page.
So here''s my patch
2012 Jan 04
98
RFC: Still TODO for 4.2?
What are the outstanding things to do before we think we can start on
the 4.2 -rc''s? Does anyone have a timetable in mind?
hypervisor:
* ??? - Keir, Tim, Jan?
tools:
* libxl stable API -- we would like 4.2 to define a stable API
which downstream''s can start to rely on not changing. Aspects of
this are:
* event handling (IanJ working
2009 Jun 16
2
vnc Display number
Hello,
is it possible to find out the specific vnc Display Number of a domU?
Thanks,
Stefan
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2008 Oct 07
3
Creating a custom directory tree inside Xenstore
Is it possible to create a custom directory tree inside Xenstore using any of the Xenstore-utilities??
For example, "/local/domain/0/Customdir".
Thx,
Venkat
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2023 May 23
5
Bug#1036601: xenstore-utils: missing Depends: xen-utils-common
Package: xenstore-utils
Version: 4.17.0+74-g3eac216e6e-1
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts
Hi,
during a test with piuparts I noticed your package ships (or creates)
a broken symlink:
0m15.9s ERROR: FAIL: Broken symlinks:
/usr/bin/xenstore-control -> ../lib/xen-common/bin/xen-utils-wrapper (xenstore-utils)
cheers,
Andreas
2013 Jul 06
1
[PATCH 1/2] xenstore: don't die on access-denied child nodes in 'xenstore ls'
Signed-off-by: Matthew Daley <mattjd@gmail.com>
---
tools/xenstore/xenstore_client.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/xenstore/xenstore_client.c b/tools/xenstore/xenstore_client.c
index 3ac214b..996ee64 100644
--- a/tools/xenstore/xenstore_client.c
+++ b/tools/xenstore/xenstore_client.c
@@ -134,8 +134,13 @@ static void do_ls(struct
2012 Nov 14
2
Bug#693217: Removal of xenstore tdb file before xenstored daemon
Package: xen-utils-common
Version: 4.0.0-1
Consider removal of xenstored tdb file (located at
/var/lib/xenstored/tdb) before start of xenstored daemon during the boot
(or removal during the shutdown/reboot of the server) as proposed by Ian
Campbell during our discussions [1].
[1] http://lists.xen.org/archives/html/xen-users/2012-11/msg00111.html
--
Peter Viskup
2016 Mar 30
2
Accessing xenstore from libvirt
Hi,
is it possible to access xenstore through libvirt? Or at least any other
programatic means other than calling xenstore-read/write through shell?
I understand it is somewhat of a security risk but still...
Thanks,
Marin
2010 Aug 03
1
oops when access xenstore in hvm guest
Hi,
I use follow code get xenstore ring and event channel, then i wrapped writing and reading function to operate it ,but it came to oops:
struct xenstore_domain_interface {
char req[XENSTORE_RING_SIZE]; /* Requests to xenstore daemon. */
char rsp[XENSTORE_RING_SIZE]; /* Replies and async watch events. */
XENSTORE_RING_IDX req_cons, req_prod;
XENSTORE_RING_IDX rsp_cons,
2016 Mar 30
1
Re: Accessing xenstore from libvirt
Daniel P. Berrange wrote:
> On Wed, Mar 30, 2016 at 10:53:45AM +0200, Marin Bek wrote:
>> Hi,
>>
>> is it possible to access xenstore through libvirt? Or at least any other
>> programatic means other than calling xenstore-read/write through shell?
>>
>> I understand it is somewhat of a security risk but still...
>
> No, we don't expose this kind of
2008 Aug 02
1
XenStore communication
Hi,
I want to know how everything communicates with XenStore.
Do domUs use the front-end/back-end driver to dom0 and then the back-end
driver contacts xenstored?
In particular, how do the xenstore-* commands work on a dom0 and domU?
And when should unix-domain sockets be used to communicate with xenstored?
Thanks,
Hayawardh
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2012 Aug 24
2
Bug#666135: XenStore tdb vs. reboot
Hello,
I noticed a strace delay when running "virsh list" on my Xen-4.1.3 test
server. On further investigation I noticed that in XenStore there were
multiple /vm/$UUID entries suffixed by -$VERSION, especially I hat 16 entries
for my dom0. For each reboot of the host I get a new entry.
After disabling Xend I get the following output after a reboot:
> root at xen5:~# xenstore-ls
2012 Aug 24
2
Bug#666135: XenStore tdb vs. reboot
Hello,
I noticed a strace delay when running "virsh list" on my Xen-4.1.3 test
server. On further investigation I noticed that in XenStore there were
multiple /vm/$UUID entries suffixed by -$VERSION, especially I hat 16 entries
for my dom0. For each reboot of the host I get a new entry.
After disabling Xend I get the following output after a reboot:
> root at xen5:~# xenstore-ls
2008 Oct 21
1
Xenstore access permission to a specific domain
I understand that "xenstore-chmod XENSTOREPATH perm" will allow xenstore access to each other domains according to the permissions set.
But if I need to permit access to a specific domain which will avoid a global permit access, is there a way?
Thx,
Venkat
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2008 Oct 08
4
Xenstore-chmod equivalent Kernel(XenBus) API
Which is the Kernel API (Xenbus API) that is available to do a similar action as "xenstore-chmod"??
Thx,
Venkat
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2011 Oct 03
2
Bug#644125: xenstore-utils has completely inadequate description
Package: xenstore-utils
Version: 4.0.1-2
all it says is:
"Description: Xenstore utilities for Xen
This package contains the Xenstore utilities."
Wow, i never would have guessed that a package called xenstore-utils
might contain Xenstore utilities. I'm glad that's cleared up!
that just leaves a few tiny, niggling questions:
1. WTF are the Xenstore utilities?
2. What are