在x64linux下编译Qemu

做JOS实验的时候，因为想在真机上跑Qemu来做，而自己的机子是Ubuntu x64的，目标应用是x86的，当时编译的时候还遇到了一些问题，这里做个记录:)

本文参考了：https://community.gns3.com/community/forum/blog/2014/12/24/how-to-compile-qemu-220-in-ubuntu-64bit

1. First install Qemu dependencies for Ubuntu

   sudo apt-get install build-essential gcc pkg-config glib-2.0 libglib2.0-dev libsdl1.2-dev libaio-dev libcap-dev libattr1-dev libpixman-1-dev
   

2. install other dependencies

   sudo apt-get build-dep qemu
   

3. then download latest Qemu source files from Download - QEMU

   wget http://wiki.qemu-project.org/download/qemu-2.2.0.tar.bz2
   // Change the version of qemu to get latest one
   

4. extract it

   sudo tar -xvjf qemu-2.2.0.tar.bz2
   

5. go to extracted folder

   cd qemu-2.2.0/
   

6. compile it for 64bit (if you want 32 bit too add this ‘,i386-softmmu’)

   sudo ./configure --target-list=x86_64-softmmu  (for additional platform type  ./configure --help)
   sudo make
   sudo make install
   

---

##Note

• KVM is enable by default ,you can add –enable-kvm option in ./configure , like the following

  sudo ./configure –target-list=x86_64-softmmu –enable-kvm

  • if you want to build with NETMAP do as following

  • first install git

    sudo apt-get install git
    

  • then download and install NETMAP source code (we need that source code location for building NETMAP) , I want to download NETMAP source in my /opt/ directory

    cd /opt/
    

• then download NETMAP by git

sudo git clone https://code.google.com/p/netmap/
cd netmap
cd LINUX
sudo ./configure --no-drivers=virtio_net.c
sudo make
sudo make install

• then we must give sys folder location in netmap , (/opt/netmap/sys) to ./configure ,with –extra-cflags=-I option , like the following

  sudo ./configure --target-list=x86_64-softmmu --enable-kvm --enable-netmap --extra-cflags=-I/opt/netmap/sys
  

  • you will see enable netmap=yes and enable kvm =yes after configure

    then sudo make -j4
    
    sudo make install