Merge pull request #1138 from FengYang/sanity

qemu.tests: Add sr_iov_sanity new test case.
fix typo of iozone_cmd

Change from V1:
    add .exe after iozone which is more safe.

Signed-off-by: Cong Li <coli@redhat.com>
Merge pull request #1184 from CongSmile/iozone

fix typo of iozone_cmd
virt.tests: fix no ip address for extra nics

Some guest (eg, sles, ubt) don't configure IP address for extra nics and
ping.multi_nic always failed because no IP for extra nic; fix this issue
by send pre_cmd to guest for asking IP from dhcp server before start test;

Signed-off-by: Xu Tian <xutian@redhat.com>
Merge pull request #1188 from xutian/multi_nic_ping

virt.tests: fix no ip address for extra nics
virttest: Support get VF from specified sr-iov PF.

We can set device_name to PF's devname in host.

If PF not specified, will try to get VF from all PF in turn.

Signed-off-by: Feng Yang <fyang@redhat.com>