similar to: Can PV Guest use xenbus_printf to write information to xenstore?

Displaying 20 results from an estimated 7000 matches similar to: "Can PV Guest use xenbus_printf to write information to xenstore?"

2010 Aug 09
1
How does domain0 export information to guest through xenstore
Hi,     I am tring to write xenstore some information ,so that a guest can read, if i simply xenstore-write /foo "123" in domain 0, guest have not the permission to read this ,and guest domain number are dynamic, so i can not write a program to write /local/domain/X, which X is the domain id i want to export information to, can i ?     So, is there a path (a static path,without domain
2006 Jan 17
6
Rails Best Practices Page
Hey, I have been progressively learning more and more rails each day (from both a current project, reading the agile book, and this list). Does anybody think it would be beneficial to have kind of like a rails "Best Practices" page that lists some of the better ways of handling certain functions of rails (that are common in most apps) that are both more elegant, and efficient. For
2012 Jun 14
1
facter --yaml leaves some fields blank
Sometimes "facter --yaml" doesn''t list all the values specified on the command line. I can''t find rhyme nor reason why. Here''s a demo to show what I mean: # facter --version 1.5.7 # facter --yaml fqdn macaddress lsbdistcodename --- fqdn: my.host.name.example.com lsbdistcodename: squeeze macaddress: "00:00:00:00:00:00" We had been using the above
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
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
2005 Dec 20
2
Modifying data before update or save
Hi, I''d like to upcase a variable before it is saved, but I''m not sure how to access the incoming param or where this work should be performed: In my update method, I have: @device = Device.find(params[:id]) params[:device[macaddress]].upcase <-- problem code if @device.update_attributes(params[:device]) ....usual stuff here ''macaddress'' is the
2023 May 23
2
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
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
2018 Sep 10
4
schema enhancement recommandation?
Hi Rowland, thank you for your fast answer. More see below. On 10.09.2018 19:18, Rowland Penny via samba wrote: > [..] ERR: Object class violation : "objectclass_attrs: attribute >> 'macAddress' on entry 'CN=DEMO-02,CN=Computers,DC=dmiserver,DC=lan' >> does not exist in the specified objectclasses!" on DN >>
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
2011 Mar 30
2
[PATCH] xenstore-stat v2
The entries in xenstore have permission attributes. The attributes can be easily altered by xenstore-chmod, however, I cannot find a easy way to see them. I''ve modified xenstore_client.c to raise a new utility. The utility checks the permission and makes an easy-look output. Please tell me any suggestions. Thanks. Signed-off-by: Frank Pan <frankpzh@gmail.com> ---
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
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 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
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
2006 Feb 22
2
use case for exposing xenstore attributes via sysfs [long]
I''ve seen some people asking why exposing xenstore attributes via sysfs could be useful. Here''s why I would really like to see such a patch make it into Xen: I''ve been working on getting domU''s to know enough about themselves to be manageable. I require a 128-bit UUID for each domU, and I require that each domU be able to determine its own UUID in userspace.
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 _______________________________________________ Xen-users mailing
2012 Feb 22
1
xenstore build failure
Hi, xenstore fails to build: init-xenstore-domain.c:11:32: error: xen/sys/xenbus_dev.h: No such file or directory init-xenstore-domain.c: In function ''build'': init-xenstore-domain.c:37: error: ''IOCTL_XENBUS_BACKEND_SETUP'' undeclared (first use in this function) Christoph -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH
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 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com