How to set up Qemu nvdimm_ system debugging

1. Install Qemu

$ git clone git://git.qemu-project.org/qemu.git cloning into ' qemu ' ...
Remote:counting objects:131834, done.
Remote:compressing objects:100% (29320/29320), done.
Remote:total 131834 (Delta 104345), reused 129302 (Delta 102090)
Receiving objects:100% (131834/131834), 45.42 MiB | KIB/S, done.
Resolving deltas:100% (104345/104345), done.
Checking out files:100% (2849/2849), done.
$ CD qemu/

$./configure

$ sudo apt-get install libgtk-3-0

$ sudo apt-get install Libsdl1.2-dev
$ make

$ sudo make install

2. Install Ubuntu on QEMU

Qemu-img create-f qcow2 ubuntu.img 8G
Qemu-system-x86_64-enable-kvm-m 1g-hda Ubuntu.img-cdrom/home/chenyu/iso/ubuntu-16.04-desktop-amd64.iso-boot D

3. Enable Nvdimm

DD If=zero of=nvdimm.img bs=1g count=2

/home/chenyu/tool/qemu/bin/qemu-system-x86_64-enable-kvm-machine pc,nvdimm-cpu kvm64-m 1G,maxmem=100G,slots=100- SMP 4-hda Ubuntu.img-object Memory-backend-file,share,id=mem1,mem-path=./nvdimm.img,size=4g-device nvdimm,memdev= Mem1,id=nv1-vnc 192.168.1.4:0-monitor Stdio-netdev type=tap,id=eth0,ifname=tap0,script=no,downscript=no-device pcnet,netdev=eth0,mac=12:03:04:05:06:08

4. Use Vncviewer on Windows to connect to ip:0

5. Besides, you might want to enable the network in QEMU, as we illustrated above, we have already pasted the command

Above, which is Netdev type=tap,id=eth0,ifname=tap0,script=no,downscript=no-device pcnet,netdev=eth0,mac= 12:03:04:05:06:08

Which declare a netdev with type tap, assign it ID with eth0, and it device name is Tap0 (which was created by Tunctl),

and create a guest device of PCnet, its attributes Netdev is the newly created device. With the Mac set with 12:03:04:05:06:08.

ENS3 hwaddr 12:03:04:05:06:08

Above is the ifconfig result after booting into the guest OS. You can-there is no IP of it,

Because actually we haven ' t create any virtual net device or network to the host, let's Do it now:

Need to install virtual Network Tools:

Apt-get Install Uml-utilities

Then you can create the virtual network:

Tunctl-t tap0

Tunctl-t tap0
Set ' tap0 ' persistent and owned by UID 0

Brctl Show Bridge
name Bridge     ID               STP enabled     interfaces

Enable this card

Ifconfig tap0 Promisc up

OK, let's create a bridge to connect host network and newly created virtual net card:

Brctl ADDBR Br0

Brctl Show Bridge
name Bridge     ID               STP enabled     interfaces
br0             8000.000000000000       No

Add tap0 and Host network to the bridge:

Brctl addif br0 tap0
# brctl show Bridge
name Bridge     ID               STP enabled     interfaces
br0             8000.5afa09f95226       No              tap0

Add Host:

Brctl addif br0 Enx8cae4cec9a43

But after this command, the host network are down, because the bridge isn't enabled,

You are have to use the following solution:

# ifconfig eth0 0.0.0.0
 # ifconfig eth1 0.0.0.0
 # brctl ADDBR mybridge
 # brctl addif mybridge eth0
 # Brctl AddIf Mybridge eth1 
 # ifconfig Mybridge up

All of the network works now.