On Thursday, September 02, 2010 06:27:26 pm matthew.r.rohrer@xxxxxxxxxx wrote:
> When trying to use vhost I get the error "vhost-net requested but could
> not be initialized". The only thing I have been able to find about this
> problem relates to SElinux being turned off which mine is disabled and
> permissive. Just wondering if there were any other thoughts on this
> error? Am I correct that it should work with the .35.4 kernel and
> version 12.5 KVM?
If you mean 0.12.5, no. If you mean 0.12.50 (i.e. a git checkout from some
point after 0.12.0 was released), then it depends on when the checkout is
from.
>
>
> KVM Host OS: Fedora 12 x86_64
> KVM Guest OS Tiny Core Linux 2.6.33.3 kernel
>
> Host kernel 2.6.35.4 and qemu-system-x86_64 12.5 compiled from from
> qemu-kvm repo.
>
> Starting with:
> modprobe kvm
> modprobe kvm_intel
> modprobe tun
> echo -e "Setting up bridge device br0" "\r"
> brctl addbr br0
> ifconfig br0 192.168.100.254 netmask 255.255.255.0 up
> brctl addif br0 eth7
> ifconfig eth7 down
> ifconfig eth7 0.0.0.0
> for ((i=0; i < NUM_OF_DEVICES ; i++)); do
> echo -e "Setting up " "\r"
> tunctl -b -g ${KVMNET_GID} -t kvmnet$i
> brctl addif br0 kvmnet$i
> ifconfig kvmnet$i up 0.0.0.0 promisc
> done
> echo "1" > /proc/sys/net/ipv4/ip_forward
> iptables -t nat -A POSTROUTING -s 192.168.100.0/24 -o eth7 -j
> MASQUERADE
> for ((i=0; i < NUM_OF_DEVICES ; i++)); do
>
> qemu-img create -f qcow2 vdisk_$i.img $VDISK_SIZE
>
> /root/bin/qemu-system-x86_64 -cpu host -drive
> file=./vdisk_$i.img,if=virtio,boot=on -cdrom ./$2 -boot d \
> -netdev
> type=tap,id=tap.0,script=no,ifname=kvmnet$i,vhost=on \
> -device
> virtio-net-pci,netdev=tap.0,mac=52:54:00:12:34:3$i \
> -m 1024 \
> -smp 2 \
> -usb \
> -usbdevice tablet \
> -localtime \
> -daemonize \
> -vga std
>
>
> Thanks in advance for the input! -Matt
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