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[Astlinux-commits] SF.net SVN: astlinux:[7587] branches/1.0/package/qemu/qemu.init
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From: <abe...@us...> - 2016-03-13 13:48:22
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Revision: 7587
http://sourceforge.net/p/astlinux/code/7587
Author: abelbeck
Date: 2016-03-13 13:48:21 +0000 (Sun, 13 Mar 2016)
Log Message:
-----------
qemu, additional contributions by David Kerr, now able to run an AstLinux VM as a guest of AstLinux
Modified Paths:
--------------
branches/1.0/package/qemu/qemu.init
Modified: branches/1.0/package/qemu/qemu.init
===================================================================
--- branches/1.0/package/qemu/qemu.init 2016-03-12 21:20:44 UTC (rev 7586)
+++ branches/1.0/package/qemu/qemu.init 2016-03-13 13:48:21 UTC (rev 7587)
@@ -2,12 +2,13 @@
# Default settings. Override in user.conf file.
QEMU_START=yes
+# QEMU_CDROM_IMAGE=/path/to/iso/file -- Optional.
# QEMU_RUN_IMAGE=/path/to/vm/image -- Required, must be set in user.conf file
# QEMU_MEM=1024 -- (value in MB) default set below to lesser of 50% of total memory or 90% of free memory
# QEMU_VCPU=2 -- default set below to half of available CPU cores
QEMU_NET_DEVICE=virtio-net-pci
QEMU_NET_BRIDGE=br0
-QEMU_NET_MACADDR=52:54:00:AB:CD:EF
+# QEMU_NET_MACADDR=52:54:00:12:34:56 -- Optional, leave blank for QEMU to assign
QEMU_BLOCK_DEVICE=virtio
QEMU_VNC_DISPLAY=1
@@ -48,31 +49,59 @@
QemuVCpuStr="-smp cpus=$QemuVCpu"
fi
- # Make sure network bridge exists. If not then exit
- /usr/sbin/brctl showmacs $QEMU_NET_BRIDGE > /dev/null
- if [ $? == 1 ]; then
- /usr/bin/logger -s -p user.err -id -t qemu "ERROR: Bridge $QEMU_NET_BRIDGE does not exist. Exiting"
- exit
+ # Was a CDROM ISO file provided?
+ QemuCdrom=""
+ if [ -n "$QEMU_CDROM_IMAGE" ]; then
+ QemuCdrom=$QEMU_CDROM_IMAGE
fi
- # Make sure that the bridge helper ACL list allows access to the network bridge we selected.
- /bin/grep -v '^$' /etc/qemu/bridge.conf | /bin/grep -v '^ *#' | /bin/grep "allow $QEMU_NET_BRIDGE" > /dev/null
- if [ $? == 1 ]; then
- /usr/bin/logger -s -p user.err -id -t qemu "ERROR: ACL permissions for bridge $QEMU_NET_BRIDGE not set in /etc/qemu/bridge.conf. Exiting"
- exit
- fi
- # Check tcp-segmentation-offload and general-segmentation-offload
- /usr/sbin/ethtool -k br0 | /bin/grep "segmentation-offload" | /bin/grep ": off" > /dev/null
- if [ $? == 0 ]; then
- /usr/bin/logger -s -p user.warning -id -t qemu "WARNING: host $QEMU_NET_BRIDGE interface has TSO and GSO set to off. Consider setting guest network interface to match with ethtool command"
- fi
- # If network device virtio then set enable host support
+ # If network device virtio then enable host support
if [ "$QEMU_NET_DEVICE" = "virtio-net-pci" ]; then
QemuVHost=",vhost=on"
else
QemuVHost=""
fi
+ iNet=0
+ QemuNetdev=""
+ QemuDevice=""
+ QemuMacAddr=""
+ if [ -n "$QEMU_NET_MACADDR" ]; then
+ QemuMacAddr=$QEMU_NET_MACADDR
+ fi
+ for iBridge in $QEMU_NET_BRIDGE; do
+ # Make sure network bridge exists. If not then exit
+ /usr/sbin/brctl showmacs $iBridge > /dev/null
+ if [ $? == 1 ]; then
+ /usr/bin/logger -s -p user.err -id -t qemu "ERROR: Bridge $iBridge does not exist. Exiting"
+ exit
+ fi
+ # Make sure that the bridge helper ACL list allows access to the network bridge we selected.
+ /bin/grep -v '^$' /etc/qemu/bridge.conf | /bin/grep -v '^ *#' | /bin/grep "allow $iBridge" > /dev/null
+ if [ $? == 1 ]; then
+ /usr/bin/logger -s -p user.err -id -t qemu "ERROR: ACL permissions for bridge $iBridge not set in /etc/qemu/bridge.conf. Exiting"
+ exit
+ fi
+ # Check tcp-segmentation-offload and general-segmentation-offload
+ /usr/sbin/ethtool -k $iBridge | /bin/grep "segmentation-offload" | /bin/grep ": off" > /dev/null
+ if [ $? == 0 ]; then
+ /usr/bin/logger -s -p user.warning -id -t qemu "WARNING: host $iBridge interface has TSO or GSO set to off. Consider setting guest network interface to match with ethtool -K <if> command"
+ fi
+ # build the -netdev and -device options
+ ((iNet++))
+ QemuNetdev=$QemuNetdev" -netdev tap,id=nd$iNet,helper=\"/usr/libexec/qemu-bridge-helper --br=$iBridge\"$QemuVHost"
+ QemuDevice=$QemuDevice" -device $QEMU_NET_DEVICE,netdev=nd$iNet,id=nic$iNet"
+ if [ -n "$QemuMacAddr" ]; then
+ QemuDevice=$QemuDevice",mac=$QemuMacAddr"
+ # Now increment mac address by 1 in case there are multiple interfaces
+ macHead="$(echo $QemuMacAddr | cut -d: -f1-5)"
+ macTail="$(echo $QemuMacAddr | cut -d: -f6)"
+ macTail=$(printf %X $((0x$macTail + 1)))
+ QemuMacAddr="$macHead:${macTail:(-2)}"
+ fi
+ done
+
+
# Load required modules in case they are not already loaded... kvm kvm-amd or kvm-intel and vhost_net
/bin/grep "flags" /proc/cpuinfo | /bin/grep " lm" > /dev/null
# Presence of 'lm' flag indicates 64-bit processor
@@ -119,11 +148,12 @@
# And now run qemu.
/usr/bin/logger -s -p user.info -id -t qemu "Run image $QEMU_RUN_IMAGE with $QemuMemory MB of Memory and $QemuVCpu CPU cores on Network $QEMU_NET_BRIDGE. Console on VNC port 590$QEMU_VNC_DISPLAY"
- /usr/bin/qemu \
+ eval /usr/bin/qemu \
-m $QemuMemory \
- -drive file="$QEMU_RUN_IMAGE",if=$QEMU_BLOCK_DEVICE,index=0 \
- -netdev tap,id=nd1,helper="/usr/libexec/qemu-bridge-helper --br=$QEMU_NET_BRIDGE"$QemuVHost \
- -device $QEMU_NET_DEVICE,netdev=nd1,id=nic1,mac=$QEMU_NET_MACADDR \
+ $QemuNetdev \
+ $QemuDevice \
+ $QemuCdrom \
+ -drive file="\"$QEMU_RUN_IMAGE\"",if=$QEMU_BLOCK_DEVICE \
-enable-kvm \
$QemuVCpuStr \
-qmp tcp:localhost:4444,server,nowait \
@@ -151,6 +181,13 @@
case $1 in
start)
+ if [ -n "$2" ]; then
+ # We got some args after the "start" lets parse them into variables.
+ # e.g /etc/init.d/qemu start QEMU_CDROM_IMAGE=/path/to/iso/file QEMU_RUN_IMAGE=/path/to/vm/image
+ for i in "${@:2}"; do
+ declare ${i%=*}="${i#*=}"
+ done
+ fi
start
;;
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