I use the qemu-kvm-0.12-3 version source file. Just follow the typical three steps: ./configure && make && make install.
After I configure, following is output: Install prefix /usr/local BIOS directory /usr/local/share/qemu binary directory /usr/local/bin Manual directory /usr/local/share/man ELF interp prefix /usr/gnemul/qemu-%M Source path /root/svt/qemu-kvm-0.12.3 C compiler gcc Host C compiler gcc CFLAGS -O2 -g QEMU_CFLAGS -m32 -Wold-style-definition -Wold-style-declaration -I. -I$(SRC_PATH) -U_FORTIFY_SOURCE -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wendif-labels -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing LDFLAGS -Wl,--warn-common -m32 -g make make install install host CPU i386 host big endian no target list x86_64-softmmu tcg debug enabled no gprof enabled no sparse enabled no strip binaries yes profiler no static build no -Werror enabled no SDL support yes curses support yes curl support yes check support no mingw32 support no Audio drivers oss Extra audio cards ac97 es1370 sb16 Block whitelist Mixer emulation no VNC TLS support yes VNC SASL support yes xen support no CPU emulation yes brlapi support no bluez support no Documentation no NPTL support yes GUEST_BASE yes PIE user targets no vde support no IO thread no Linux AIO support no Install blobs yes KVM support yes KVM PIT support yes KVM device assig. yes KVM trace support no fdt support no preadv support no fdatasync yes uuid support yes All compile procedure seems normal. No warning exists. And I use this command to start the GuestOS: ./x86_64-softmmu/qemu-system-x86_64 -m 1024 /root/redhat.img -net nic, model=virtio -net tap, script=/etc/qemu-ifup The qemu-ifup script is : #!/bin/sh #sample /etc/qemu-ifup to have bridged networking between qemu instances and your real net # You need "youruser ALL=(root) NOPASSWD: /etc/qemu-ifup" in /etc/sudoers # You also need enough rights on /dev/tun if [ $UID -ne 0 ] then sudo $0 $1 exit fi /sbin/ifconfig $1 promisc 0.0.0.0 if ! /sbin/ifconfig br0 then /usr/sbin/brctl addbr br0 /usr/sbin/brctl addif br0 eth0 /sbin/ifconfig br0 up addr=`/sbin/ip addr | grep eth0 | grep inet | sed -e 's/eth0/dev br0/' -e s/inet//` /sbin/ip addr add $addr fi /usr/sbin/brctl addif br0 $1 /usr/sbin/brctl stp br0 off /sbin/ip route | grep eth0 | while read route do newroute=`echo $route | sed s/eth0/br0/ ` /sbin/ip route del $route /sbin/ip route add $newroute done On Tue, Mar 23, 2010 at 9:59 PM, Amit Shah <amit.s...@redhat.com> wrote: > Hello, > > [any reason you dropped the CC list? CC'ing qemu-devel, where this is > relevant.] > > On (Tue) Mar 23 2010 [21:46:28], Liang YANG wrote: >> I check the 'lspci -v' result, only find RTL-8139 realtek ethernet. I >> think the option model=virtio does't make effect. > > Then something is wrong. I get a virtio ethernet device using > model=virtio. > > Which qemu version are you using? > >> Simultaneously, I have the a look at the code. The function pc_init1() >> seem not change the network model as the option assigned. >> >> Do you ever meet this case? > > I've not seen this. > >> On Tue, Mar 23, 2010 at 9:08 PM, Amit Shah <amit.s...@redhat.com> wrote: >> > On (Sun) Mar 21 2010 [20:18:53], Liang YANG wrote: >> >> I want to set up the virtio-net for the GuestOS on KVM. Following is my >> >> steps: >> >> >> >> 1.Compile the kvm-88 and make, make install. >> >> 2.Compile the GuestOS(redhat) with kernel version 2.6.27.45(with >> >> virtio support). The required option are all selected. >> >> o CONFIG_VIRTIO_PCI=y (Virtualization -> PCI driver for >> >> virtio devices) >> >> o CONFIG_VIRTIO_BALLOON=y (Virtualization -> Virtio balloon >> >> driver) >> >> o CONFIG_VIRTIO_BLK=y (Device Drivers -> Block -> Virtio block >> >> driver) >> >> o CONFIG_VIRTIO_NET=y (Device Drivers -> Network device >> >> support -> Virtio network driver) >> >> o CONFIG_VIRTIO=y (automatically selected) >> >> o CONFIG_VIRTIO_RING=y (automatically selected) >> >> 3.Then start up the GuestOS by such command: >> >> x86_64-softmmu/qemu-system-x86_64 -m 1024 /root/redhat.img >> >> -net nic,model=virtio -net tap,script=/etc/kvm/qemu-ifup >> >> 4.Result is this: >> >> * The Guest OS start up. >> >> * But the network not, no eth-X device found. >> >> * lsmod | grep virtio get none module about virtio >> > >> > Since you selected the virtio options as 'y', they are directly compiled >> > into the kernel and hence you won't see the modules. >> > >> > Check your 'lspci -v' output. You should see the virtio device there. >> > You can also try some usual things like 'ifconfig eth0 up', etc., to get >> > the interface. >> > >> > Amit >> > -- >> > http://log.amitshah.net/ >> > >> >> >> >> -- >> BestRegards. >> YangLiang >> _____________________________________________ >> Department of Computer Science . >> School of Electronics Engineering & Computer Science . >> _____________________________________________ > > Amit > -- > http://log.amitshah.net/ > -- BestRegards. YangLiang _____________________________________________ Department of Computer Science . School of Electronics Engineering & Computer Science . _____________________________________________