4:21 a.m.
All,
These days I am trying to understand the interaction relationship
between the libvirt and KVM kernel module, eg. kvm_intel.ko.
We know that KVM kernel module expose an entry in form of device file
"/dev/kvm" which can be accessed by user space application to control,
for example, create a VM using KVM_CREATE_VM with help of ioctl.
Now let's say the tool virsh based upon libvirt, we can create a guest
domain with the command looks like:
#virsh create guest.xml
Obviously, the above command will create a VM. But when I try to
investigate the libvirt code, I can't find any code play with the
"/dev/kvm" to send KVM_CREATE_VM ioctl code to KVM kernel module. But
I do found that the reference count of the kvm_intel.ko changed before
the virsh create command launched and after.
So my question is: how does the libvirt interaction with KVM to create a
VM? Anybody can give me some tips about that, eg, the corresponding
codes in libvirt?
BRs.
Dennis
5:26 a.m.
On Thu, Jun 28, 2012 at 05:21:57PM +0800, Dennis Chen wrote:
All,
These days I am trying to understand the interaction relationship
between the libvirt and KVM kernel module, eg. kvm_intel.ko.
We know that KVM kernel module expose an entry in form of device
file "/dev/kvm" which can be accessed by user space application to
control, for example, create a VM using KVM_CREATE_VM with help of
ioctl.
Now let's say the tool virsh based upon libvirt, we can create a
guest domain with the command looks like:
#virsh create guest.xml
Obviously, the above command will create a VM. But when I try to
investigate the libvirt code, I can't find any code play with the
"/dev/kvm" to send KVM_CREATE_VM ioctl code to KVM kernel module.
But I do found that the reference count of the kvm_intel.ko changed
before the virsh create command launched and after.
So my question is: how does the libvirt interaction with KVM to
create a VM? Anybody can give me some tips about that, eg, the
corresponding codes in libvirt?
The '/dev/kvm' device is the low level kernel interface for creating
virtual domains. This is not actually used by libvirt at all. The
QEMU binary has code that talks to /dev/kvm, so all libvirt does is
to spawn a QEMU process which in turns creates the virtual machine
All the libvirt code for this part is under $GIT/src/qemu/ in particular
the qemu_command.c and qemu_process.c files
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
1:18 a.m.
On 06/28/2012 06:26 PM, Daniel P. Berrange wrote:
On Thu, Jun 28, 2012 at 05:21:57PM +0800, Dennis Chen wrote:
> All,
>
> These days I am trying to understand the interaction relationship
> between the libvirt and KVM kernel module, eg. kvm_intel.ko.
>
> We know that KVM kernel module expose an entry in form of device
> file "/dev/kvm" which can be accessed by user space application to
> control, for example, create a VM using KVM_CREATE_VM with help of
> ioctl.
>
> Now let's say the tool virsh based upon libvirt, we can create a
> guest domain with the command looks like:
> #virsh create guest.xml
> Obviously, the above command will create a VM. But when I try to
> investigate the libvirt code, I can't find any code play with the
> "/dev/kvm" to send KVM_CREATE_VM ioctl code to KVM kernel module.
> But I do found that the reference count of the kvm_intel.ko changed
> before the virsh create command launched and after.
>
> So my question is: how does the libvirt interaction with KVM to
> create a VM? Anybody can give me some tips about that, eg, the
> corresponding codes in libvirt?
The '/dev/kvm' device is the low level kernel interface for creating
virtual domains. This is not actually used by libvirt at all. The
QEMU binary has code that talks to /dev/kvm, so all libvirt does is
to spawn a QEMU process which in turns creates the virtual machine
All the libvirt code for this part is under $GIT/src/qemu/ in particular
the qemu_command.c and qemu_process.c files
Daniel
Thanks Daniel, now I understand that the libvirt code will play with
QEMU binary, for example, qemu-system-x86_64, the latter will talk with
KVM module . But now the question is, I guess qemuProcessStart()
function was used to spawn a QEMU process, so I built a virsh from the
source package with "-g -O0" flag, I want to gdb the virsh, but when I
want to set a break point on qemuProcessStart(), I encounter issue:
#gdb virsh
(gdb) b main
Breakpoint 1 at 0x807d480: file virsh.c, line 20270.
(gdb) r
Starting program: /usr/bin/virsh
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
Breakpoint 1, main (argc=1, argv=0xbffff294) at virsh.c:20270
20270 {
(gdb) b qemuProcessStart
Function "qemuProcessStart" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 2 (qemuProcessStart) pending.
(gdb)c
virsh # create guest.xml
Domain vdo created from vdo.xml
virsh #
continue instruction above doesn't hit the pending Breakpoint 2...
So my question is, which kind of object file will be created from
$GIT/src/qemu folder during the build process, is it a .so file and
virsh will load it?
BRs
Dennis
1:49 a.m.
On Fri, Jun 29, 2012 at 02:18:17PM +0800, Dennis Chen wrote:
On 06/28/2012 06:26 PM, Daniel P. Berrange wrote:
>The '/dev/kvm' device is the low level kernel interface for creating
>virtual domains. This is not actually used by libvirt at all. The
>QEMU binary has code that talks to /dev/kvm, so all libvirt does is
>to spawn a QEMU process which in turns creates the virtual machine
>
>All the libvirt code for this part is under $GIT/src/qemu/ in particular
>the qemu_command.c and qemu_process.c files
>
>Daniel
Thanks Daniel, now I understand that the libvirt code will play with
QEMU binary, for example, qemu-system-x86_64, the latter will talk
with KVM module . But now the question is, I guess
qemuProcessStart() function was used to spawn a QEMU process, so I
built a virsh from the source package with "-g -O0" flag, I want to
gdb the virsh, but when I want to set a break point on
qemuProcessStart(), I encounter issue:
#gdb virsh
(gdb) b main
Breakpoint 1 at 0x807d480: file virsh.c, line 20270.
(gdb) r
Starting program: /usr/bin/virsh
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
Breakpoint 1, main (argc=1, argv=0xbffff294) at virsh.c:20270
20270 {
(gdb) b qemuProcessStart
Function "qemuProcessStart" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 2 (qemuProcessStart) pending.
(gdb)c
virsh # create guest.xml
Domain vdo created from vdo.xml
virsh #
continue instruction above doesn't hit the pending Breakpoint 2...
So my question is, which kind of object file will be created from
$GIT/src/qemu folder during the build process, is it a .so file and
virsh will load it?
virsh talks to the libvirtd daemon, the libvirtd daemon run those
calls from the qemu driver. The documentation is relatively sparse,
but reading what is available will help:
http://libvirt.org/api.html
http://libvirt.org/internals.html
so if you want to step though that function you must gdb the libvirt
daemon, not the client application.
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
2:07 a.m.
On 06/29/2012 02:49 PM, Daniel Veillard wrote:
On Fri, Jun 29, 2012 at 02:18:17PM +0800, Dennis Chen wrote:
> On 06/28/2012 06:26 PM, Daniel P. Berrange wrote:
>> The '/dev/kvm' device is the low level kernel interface for creating
>> virtual domains. This is not actually used by libvirt at all. The
>> QEMU binary has code that talks to /dev/kvm, so all libvirt does is
>> to spawn a QEMU process which in turns creates the virtual machine
>>
>> All the libvirt code for this part is under $GIT/src/qemu/ in particular
>> the qemu_command.c and qemu_process.c files
>>
>> Daniel
> Thanks Daniel, now I understand that the libvirt code will play with
> QEMU binary, for example, qemu-system-x86_64, the latter will talk
> with KVM module . But now the question is, I guess
> qemuProcessStart() function was used to spawn a QEMU process, so I
> built a virsh from the source package with "-g -O0" flag, I want to
> gdb the virsh, but when I want to set a break point on
> qemuProcessStart(), I encounter issue:
>
> #gdb virsh
> (gdb) b main
> Breakpoint 1 at 0x807d480: file virsh.c, line 20270.
> (gdb) r
> Starting program: /usr/bin/virsh
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
>
> Breakpoint 1, main (argc=1, argv=0xbffff294) at virsh.c:20270
> 20270 {
> (gdb) b qemuProcessStart
> Function "qemuProcessStart" not defined.
> Make breakpoint pending on future shared library load? (y or [n]) y
> Breakpoint 2 (qemuProcessStart) pending.
>
> (gdb)c
>
> virsh # create guest.xml
> Domain vdo created from vdo.xml
>
> virsh #
>
> continue instruction above doesn't hit the pending Breakpoint 2...
>
> So my question is, which kind of object file will be created from
> $GIT/src/qemu folder during the build process, is it a .so file and
> virsh will load it?
virsh talks to the libvirtd daemon, the libvirtd daemon run those
calls from the qemu driver. The documentation is relatively sparse,
but reading what is available will help:
http://libvirt.org/api.html
http://libvirt.org/internals.html
so if you want to step though that function you must gdb the libvirt
daemon, not the client application.
Daniel
en, this Daniel is not that Daniel: ) I remember that I joined the
presentation about
libvirt delivered by you in Nanjing University last year.
Yes, the document about libvirt is sparse, so I am often confused when I
try to
understand the internals of the relationship between QEMU, KVM and
libvirt...
Let me go through the link you mentioned to see if I can understand
libvirtd comes from
and the relationship with libvirt...
BRs,
Dennis
2:47 a.m.
On Fri, Jun 29, 2012 at 03:07:54PM +0800, Dennis Chen wrote:
On 06/29/2012 02:49 PM, Daniel Veillard wrote:
[...]
> virsh talks to the libvirtd daemon, the libvirtd daemon run
those
>calls from the qemu driver. The documentation is relatively sparse,
>but reading what is available will help:
>
> http://libvirt.org/api.html
> http://libvirt.org/internals.html
>
>so if you want to step though that function you must gdb the libvirt
>daemon, not the client application.
>
>Daniel
en, this Daniel is not that Daniel: ) I remember that I joined the
presentation about
libvirt delivered by you in Nanjing University last year.
ah yes, there is Dan and Daniel that can be a bit confusing :-)
Yes, the document about libvirt is sparse, so I am often confused
when I try to
understand the internals of the relationship between QEMU, KVM and
libvirt...
ah, yes the overall stack is a bit complex.
Let me go through the link you mentioned to see if I can understand
libvirtd comes from
and the relationship with libvirt...
Basically for some driver the application talk to the libvirt daemon
to implement all the entry points of a driver (qemu/lxc for example),
it uses the remote driver to connect to the daemon, and the daemon calls
the real driver. Sometimes, the driver in the applcation does the work
by talking directly to the hypervisor (ESX/Hyper-V).
So if you want to debug/gdb the qemu code you must attach to libvirtd
daemon not to the application.
See slide 5 of the CLK slides ;-)
http://veillard.com/Talks/CLKLinux2011.pdf
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
3:12 a.m.
On 06/29/2012 03:47 PM, Daniel Veillard wrote:
On Fri, Jun 29, 2012 at 03:07:54PM +0800, Dennis Chen wrote:
> On 06/29/2012 02:49 PM, Daniel Veillard wrote:
[...]
>> virsh talks to the libvirtd daemon, the libvirtd daemon run those
>> calls from the qemu driver. The documentation is relatively sparse,
>> but reading what is available will help:
>>
>> http://libvirt.org/api.html
>> http://libvirt.org/internals.html
>>
>> so if you want to step though that function you must gdb the libvirt
>> daemon, not the client application.
>>
>> Daniel
> en, this Daniel is not that Daniel: ) I remember that I joined the
> presentation about
> libvirt delivered by you in Nanjing University last year.
ah yes, there is Dan and Daniel that can be a bit confusing :-)
> Yes, the document about libvirt is sparse, so I am often confused
> when I try to
> understand the internals of the relationship between QEMU, KVM and
> libvirt...
ah, yes the overall stack is a bit complex.
> Let me go through the link you mentioned to see if I can understand
> libvirtd comes from
> and the relationship with libvirt...
Basically for some driver the application talk to the libvirt daemon
to implement all the entry points of a driver (qemu/lxc for example),
it uses the remote driver to connect to the daemon, and the daemon calls
the real driver. Sometimes, the driver in the applcation does the work
by talking directly to the hypervisor (ESX/Hyper-V).
So if you want to debug/gdb the qemu code you must attach to libvirtd
daemon not to the application.
See slide 5 of the CLK slides ;-)
http://veillard.com/Talks/CLKLinux2011.pdf
Daniel
Actually I've downloaded your ppt from
http://v.csdn.hudong.com/linuxkernal2011/page2.html,
slide 5 and 12 is useful for me because it's a overview picture.
About daemon, in my system:
root@dennis-:/home/dennis/workspace/Software# ps aux | grep libvirtd
root 20308 0.0 0.1 102908 3540 ? Sl 15:25 0:00
/usr/sbin/libvirtd -d
so the libvirtd daemon is there, but I have questions about this daemon:
1. where is the daemon source code, it's in the libvirt tar package?
2. Who is responsible to start this daemon and when?
BRs,
Dennis
7:50 a.m.
On 06/29/2012 02:12 AM, Dennis Chen wrote:
so the libvirtd daemon is there, but I have questions about this
daemon:
1. where is the daemon source code, it's in the libvirt tar package?
Yes, libvirt is responsible for both libvirt.so (the client code
[src/remote/*], which bundles the RPC request to send to libvirtd) and
for libvirtd (the daemon code [daemon/*], which receives the RPC request
and then calls into the qemu driver code [src/qemu/*] to act on the
request).
2. Who is responsible to start this daemon and when?
If you use Fedora or RHEL, it is the installation of the 'libvirt'
package that installs libvirtd as a service, and therefore the service
mechanism (systemd or initd) that fires off libvirtd when you boot.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
12:46 a.m.
On 06/29/2012 08:50 PM, Eric Blake wrote:
On 06/29/2012 02:12 AM, Dennis Chen wrote:
> so the libvirtd daemon is there, but I have questions about this daemon:
> 1. where is the daemon source code, it's in the libvirt tar package?
Yes, libvirt is responsible for both libvirt.so (the client code
[src/remote/*], which bundles the RPC request to send to libvirtd) and
for libvirtd (the daemon code [daemon/*], which receives the RPC request
and then calls into the qemu driver code [src/qemu/*] to act on the
request).
> 2. Who is responsible to start this daemon and when?
If you use Fedora or RHEL, it is the installation of the 'libvirt'
package that installs libvirtd as a service, and therefore the service
mechanism (systemd or initd) that fires off libvirtd when you boot.
Eric, Thanks for the elaboration! It's very clear for me understanding
the relationship of libvirtd and qemu driver and the qemu binary, also
the internal mechanism...
BRs,
Dennis
6:03 a.m.
New subject: [libvirt-users] How does libvirt interaction with KVM to create a VM?
On 06/28/2012 05:21 PM, Dennis Chen wrote:
All,
These days I am trying to understand the interaction relationship
between the libvirt and KVM kernel module, eg. kvm_intel.ko.
We know that KVM kernel module expose an entry in form of device file
"/dev/kvm" which can be accessed by user space application to control,
for example, create a VM using KVM_CREATE_VM with help of ioctl.
Now let's say the tool virsh based upon libvirt, we can create a guest
domain with the command looks like:
#virsh create guest.xml
Obviously, the above command will create a VM. But when I try to
investigate the libvirt code, I can't find any code play with the
"/dev/kvm" to send KVM_CREATE_VM ioctl code to KVM kernel module.
But I do found that the reference count of the kvm_intel.ko changed
before the virsh create command launched and after.
So my question is: how does the libvirt interaction with KVM to create
a VM? Anybody can give me some tips about that, eg, the corresponding
codes in libvirt?
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_driver.c;h=2...
114 /* device for kvm ioctls */
115 #define KVM_DEVICE "/dev/kvm"
1022 static int kvmGetMaxVCPUs(void) {
1023 int maxvcpus = 1;
1024
1025 int r, fd;
1026
1027 fd = open(KVM_DEVICE, O_RDONLY);
1028 if (fd < 0) {
1029 virReportSystemError(errno, _("Unable to open %s"),
KVM_DEVICE);
1030 return -1;
1031 }
1032
1033 r = ioctl(fd, KVM_CHECK_EXTENSION, KVM_CAP_NR_VCPUS);
1034 if (r > 0)
1035 maxvcpus = r;
1036
1037 VIR_FORCE_CLOSE(fd);
1038 return maxvcpus;
1039 }
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_process.c;h=...
Please see qemuProcessStart() implemetation:
3288 int qemuProcessStart(virConnectPtr conn,
3289 struct qemud_driver *driver,
3290 virDomainObjPtr vm,
3291 const char *migrateFrom,
3292 int stdin_fd,
3293 const char *stdin_path,
3294 virDomainSnapshotObjPtr snapshot,
3295 enum virNetDevVPortProfileOp vmop,
3296 unsigned int flags)
......
BRs.
Dennis
_______________________________________________
libvirt-users mailing list
libvirt-users(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvirt-users
1:25 a.m.
New subject: [libvirt-users] How does libvirt interaction with KVM to create a VM?
On 06/28/2012 07:03 PM, Alex Jia wrote:
On 06/28/2012 05:21 PM, Dennis Chen wrote:
> All,
>
> These days I am trying to understand the interaction relationship
> between the libvirt and KVM kernel module, eg. kvm_intel.ko.
>
> We know that KVM kernel module expose an entry in form of device file
> "/dev/kvm" which can be accessed by user space application to control,
> for example, create a VM using KVM_CREATE_VM with help of ioctl.
>
> Now let's say the tool virsh based upon libvirt, we can create a guest
> domain with the command looks like:
> #virsh create guest.xml
> Obviously, the above command will create a VM. But when I try to
> investigate the libvirt code, I can't find any code play with the
> "/dev/kvm" to send KVM_CREATE_VM ioctl code to KVM kernel module.
> But I do found that the reference count of the kvm_intel.ko changed
> before the virsh create command launched and after.
>
> So my question is: how does the libvirt interaction with KVM to create
> a VM? Anybody can give me some tips about that, eg, the corresponding
> codes in libvirt?
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_driver.c;h=2...
114 /* device for kvm ioctls */
115 #define KVM_DEVICE "/dev/kvm"
1022 static int kvmGetMaxVCPUs(void) {
1023 int maxvcpus = 1;
1024
1025 int r, fd;
1026
1027 fd = open(KVM_DEVICE, O_RDONLY);
1028 if (fd< 0) {
1029 virReportSystemError(errno, _("Unable to open %s"),
KVM_DEVICE);
1030 return -1;
1031 }
1032
1033 r = ioctl(fd, KVM_CHECK_EXTENSION, KVM_CAP_NR_VCPUS);
1034 if (r> 0)
1035 maxvcpus = r;
1036
1037 VIR_FORCE_CLOSE(fd);
1038 return maxvcpus;
1039 }
Yes, I noticed the code above in libvirt, but it's not related with my
question in the first message...
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_process.c;h=...
Please see qemuProcessStart() implemetation:
3288 int qemuProcessStart(virConnectPtr conn,
3289 struct qemud_driver *driver,
3290 virDomainObjPtr vm,
3291 const char *migrateFrom,
3292 int stdin_fd,
3293 const char *stdin_path,
3294 virDomainSnapshotObjPtr snapshot,
3295 enum virNetDevVPortProfileOp vmop,
3296 unsigned int flags)
......
> BRs.
> Dennis
>
> _______________________________________________
> libvirt-users mailing list
> libvirt-users(a)redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
I guess the
qemuProcessStart() is used to spawn a QEMU process, but
seems that lot's of tricks in its implementation, essentially, does this
function spawn the qemu process looks like, eg:
StartProcess("/usr/bin/qemu-system-x86_64", ...);
BRs,
Dennis
7:53 a.m.
New subject: [libvirt-users] How does libvirt interaction with KVM to create a VM?
On 06/29/2012 12:25 AM, Dennis Chen wrote:
>>
>> So my question is: how does the libvirt interaction with KVM to create
>> a VM? Anybody can give me some tips about that, eg, the corresponding
>> codes in libvirt?
>
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_driver.c;h=2...
>
Yes, I noticed the code above in libvirt, but it's not related
with my
question in the first message...
Actually, yes it is. That's the code that libvirtd runs in reaction to
your client code making an RPC code via libvirt.so.
I guess the qemuProcessStart() is used to spawn a QEMU process, but
seems that lot's of tricks in its implementation, essentially, does this
function spawn the qemu process looks like, eg:
StartProcess("/usr/bin/qemu-system-x86_64", ...);
Not StartProcess, so much as execve(), as wrapped in our virCommand API
(src/util/command.c). If you want to see the exact command line that we
constructed, look at /var/log/libvirt/qemu/$dom.log for the domain name
that you are starting. It is a rather hairy command line; this is an
example from one of my VMs:
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
QEMU_AUDIO_DRV=none /usr/bin/qemu-kvm -S -M pc-0.14 -cpu qemu32
-enable-kvm -m 768 -smp 1,sockets=1,cores=1,threads=1 -name fedora-local
-uuid 24ab99db-bf50-085d-d3e5-7528243ae9b1 -nodefconfig -nodefaults
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/fedora-local.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
-no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
file=/var/lib/libvirt/images/fedora-local.img,if=none,id=drive-virtio-disk0,format=raw
-device
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
-drive
file=/var/lib/libvirt/images/top.img,if=none,id=drive-virtio-disk1,format=qcow2
-device
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk1,id=virtio-disk1
-drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device
ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=2
-netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 -device
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:65:82:9e,bus=pci.0,addr=0x5
-chardev pty,id=charserial0 -device
isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
-vnc 127.0.0.1:1 -k en-us -vga cirrus -device
ES1370,id=sound0,bus=pci.0,addr=0x6 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7
In turn, it is that hairy command line that starts the qemu process, and
qemu then takes over the actual communication with the kernel via
/dev/kvm to use KVM virtualization.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
4407
days inactive
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11 comments
6 participants
participants (6)
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Alex Jia -
Daniel P. Berrange -
Daniel Veillard -
Dennis Chen -
Dennis Chen -
Eric Blake