similar to: using vmchannel between 6.x host/guests

This set of 10 patches removes the need for any vmchannel implementation, although we can still choose to use vmchannel if we want. In this so-called "null vmchannel" configuration, the appliance connects directly to a port on the library. The exact method is described in patch 9/10. This method still requires SLIRP (user mode networking) so it is not a panacea, because recent

This patch is in preparation for allowing libguestfs to use alternate "vmchannel" implementations. Although it's not a functional change, I think it is worthwhile on its own because use of the term "vmchannel" in the names of constants is inappropriate since (a) the "-net channel" option is now properly known upstream as "guestfwd", and (b) no one can

The change to "null vmchannel" didn't get reflected in the configure script which still checks for vmchannel in qemu. This patch tidies up this part of the configure script so we don't fail, provided we have support for user mode networking (which is required for null vmchannel). This patch didn't make it into 1.0.71. Rich. -- Richard Jones, Emerging Technologies, Red

Hi experts, When I start a VM using "virsh create vm.xml", I'm not able to connect to the vmchannel from host. The process libvirtd is running as root (modified qemu.conf to set user/group to root) already. The connect just hangs there even after the guest VM is up and running. However, if I start the VM using kvm directly (with same arguments as libvirtd in `ps auxwww`), the

I'm pleased to announce the release of libguestfs 1.0.64, the library for accessing and modifying virtual machine disk images. Homepage: http://libguestfs.org/ Downloads: http://libguestfs.org/download/ Git repo: http://git.et.redhat.com/?p=libguestfs.git Fedora builds: http://koji.fedoraproject.org/koji/packageinfo?packageID=8391 NOTE at present there is a bug in qemu's

Hello, I am trying to create a lucid guest VM with a vmchannel between the guest and the hypervisor. Details below: KERNEL: # uname -a Linux saurav-desktop 2.6.38-2-generic #29~lucid1-Ubuntu SMP Mon Feb 7 13:35:14 UTC 2011 i686 GNU/Linux QEMU: # /usr/bin/qemu --version QEMU emulator version 0.13.0, Copyright (c) 2003-2008 Fabrice Bellard LIBVIRT: # /usr/sbin/libvirtd --version

This also changes the name of the "vmchannel" buffer to just "buf", reflecting the fact that it's just used as a temporary buffer, and that the word vmchannel is overloaded. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages.

>From 1da1502b33d50bc0614a20bc217876fcb8f05d39 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering at vv.meyering.net.meyering.net> Date: Thu, 24 Sep 2009 09:24:55 +0200 Subject: [PATCH libguestfs] maint: use spaces, not TABs for indentation "make syntax-check" was failing. This fixes it. * HACKING: Indent with spaces, not TABs. * configure.ac: Likewise. *

Hi, I am trying to set up vmchannel between the host and guest os. However, "sudo virsh start vm1" always gave me this error: ************************************************************* error: Failed to start domain vm1 error: internal error Process exited while reading console log output: char device redirected to /dev/pts/5 bind(unix:/tmp/foo): Permission denied chardev:

Hi! If i want to use bridged network or openvswitch, does guestfwd only works with slirp network? Or how it work in case of using bridge/openvswitch? <devices> <channel type='unix'> <source mode='bind' path='/tmp/guestfwd'/> <target type='guestfwd' address='10.0.2.1' port='4600'/> </channel> </devices>

This patch is for discussion only. The multiport virtio-console is not accepted upstream, and in any case is currently being rewritten for the nth time. Getting a test environment to test this out is also non-trivial. It look me about a day. You need to compile the alternate qemu (see URL in the patch + attached qemu patch on top of this). You also need to compile the alternate kernel - NOTE:

And with that, guestfish works on Mac OS X. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw -------------- next part -------------- >From

Notes: (1) Tis doesn't completely remove legacy serial ports yet. I couldn't work out how to make the Linux kernel see the virtconsole, so that is still using a serial port. (2) The guest network is completely unavailable if you apply this patch. We will need to add this back, possibly as an optional feature. Rich. -- Richard Jones, Virtualization Group, Red Hat

Gleb Natapov wrote: > On Tue, Oct 14, 2008 at 08:50:48AM -0500, Anthony Liguori wrote: > >> Gleb Natapov wrote: >> >>> On Mon, Oct 13, 2008 at 01:32:35PM -0500, Anthony Liguori wrote: >>> >>> >>> netlink was designed to be interface to userspace and is used like this >>> by different subsystems (not just network).

Gleb Natapov wrote: > On Tue, Oct 14, 2008 at 08:50:48AM -0500, Anthony Liguori wrote: > >> Gleb Natapov wrote: >> >>> On Mon, Oct 13, 2008 at 01:32:35PM -0500, Anthony Liguori wrote: >>> >>> >>> netlink was designed to be interface to userspace and is used like this >>> by different subsystems (not just network).

There is a need for communication channel between host and various agents that are running inside a VM guest. The channel will be used for statistic gathering, logging, cut & paste, host screen resolution changes notifications, guest configuration etc. It is undesirable to use TCP/IP for this purpose since network connectivity may not exist between host and guest and if it exists the traffic

There is a need for communication channel between host and various agents that are running inside a VM guest. The channel will be used for statistic gathering, logging, cut & paste, host screen resolution changes notifications, guest configuration etc. It is undesirable to use TCP/IP for this purpose since network connectivity may not exist between host and guest and if it exists the traffic

On Thu, Jul 18, 2019 at 10:39:09AM +0300, Vasiliy Tolstov wrote: > Hi! > If i want to use bridged network or openvswitch, does guestfwd only > works with slirp network? Or how it work in case of using > bridge/openvswitch? It is only supported with type=user (aka slirp) networking. > <devices> > <channel type='unix'> > <source mode='bind'

hi, virt guys, This is Hongqing from Fedroa QA team. I try to forward the guest installation logs to host with virtio. I have used virsh edit <guestName> to add a channel, it works fine. I think it would be better if I can initialize it when I create the guest using virt-install, and virt-install also offers the option, I have tried below, but it does not work. virt-install

This attempts to implement the idea proposed in https://www.redhat.com/archives/libguestfs/2010-April/msg00087.html The idea is that an externally managed QEMU (manual, or via libvirt) can boot the appliance kernel/initrd. libguestfs can then be just told of the UNIX domain socket associated with the guest daemon. An example based on guestfish. 1. Step one, find the appliance kernel/initrd