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-rwxr-xr-xlaunch-qemu.sh107
1 files changed, 99 insertions, 8 deletions
diff --git a/launch-qemu.sh b/launch-qemu.sh
index f7540b4..475e516 100755
--- a/launch-qemu.sh
+++ b/launch-qemu.sh
@@ -16,7 +16,7 @@ SEV_SNP="0"
ALLOW_DEBUG="0"
USE_GDB="0"
-EXEC_PATH="./usr/local"
+EXEC_PATH="/usr/local"
UEFI_PATH="$EXEC_PATH/share/qemu"
usage() {
@@ -29,6 +29,7 @@ usage() {
echo " -hda PATH hard disk file (default $HDA)"
echo " -mem MEM guest memory size in MB (default $MEM)"
echo " -smp NCPUS number of virtual cpus (default $SMP)"
+ echo " -cdrom CDROM image"
echo " -allow-debug dump vmcb on exit and enable the trace"
exit 1
}
@@ -38,6 +39,7 @@ add_opts() {
}
exit_from_int() {
+ stop_network
rm -rf ${QEMU_CMDLINE}
# restore the mapping
stty intr ^c
@@ -92,24 +94,41 @@ while [ -n "$1" ]; do
-hda) HDA="$2"
shift
;;
+ -cdrom) CDROM_FILE="$2"
+ shift
+ ;;
-mem) MEM="$2"
shift
;;
-smp) SMP="$2"
shift
;;
+ -vnc) VNC="$2"
+ shift
+ if [ "$VNC" = "" ]; then
+ usage
+ fi
+ ;;
+ -console) CONSOLE="$2"
+ shift
+ ;;
-bios) UEFI_PATH="$2"
shift
;;
-allow-debug) ALLOW_DEBUG="1"
;;
+ -novirtio) USE_VIRTIO="0"
+ ;;
-kernel) KERNEL_FILE=$2
shift
;;
-initrd) INITRD_FILE=$2
shift
;;
- *) usage
+ -append) APPEND="$2"
+ shift
+ ;;
+ *) echo "Calling usage, cannot understand argument $1"; usage
;;
esac
@@ -134,6 +153,51 @@ QEMU_EXE="$(readlink -e $TMP)"
GUEST_NAME="$(basename $TMP | sed -re 's|\.[^\.]+$||')"
}
+[ -n "$CDROM_FILE" ] && {
+ TMP="$CDROM_FILE"
+ CDROM_FILE="$(readlink -e $TMP)"
+ [ -z "$CDROM_FILE" ] && {
+ echo "Can't locate CD-Rom file [$TMP]"
+ usage
+ }
+
+ [ -z "$GUEST_NAME" ] && GUEST_NAME="$(basename $TMP | sed -re 's|\.[^\.]+$||')"
+}
+
+setup_bridge_network() {
+ BRIDGE_DEV="virbr0"
+ # Get last tap device on host
+ TAP_NUM=`ifconfig | grep tap | tail -1 | cut -c4- | cut -f1 -d ' ' | cut -f1 -d:`
+ if [ "$TAP_NUM" = "" ]; then
+ TAP_NUM="1"
+ fi
+ TAP_NUM=`echo $(( TAP_NUM + 1 ))`
+ GUEST_TAP_NAME="tap${TAP_NUM}"
+
+ [ "$USE_VIRTIO" = "1" ] && PREFIX="52:54:00" || PREFIX="02:16:1e"
+ SUFFIX="$(ip address show dev ${BRIDGE_DEV} | grep link/ether | awk '{print $2}' | awk -F : '{print $4 ":" $5}')"
+ GUEST_MAC_ADDR="$(printf "%s:%s:%02x" $PREFIX $SUFFIX $TAP_NUM)"
+
+ echo "Starting network adapter '${GUEST_TAP_NAME}' MAC=$GUEST_MAC_ADDR"
+ run_cmd "ip tuntap add $GUEST_TAP_NAME mode tap user `whoami`"
+ run_cmd "ip link set $GUEST_TAP_NAME up"
+ run_cmd "ip link set $GUEST_TAP_NAME master ${BRIDGE_DEV}"
+
+ if [ "$USE_VIRTIO" = "1" ]; then
+ add_opts "-netdev type=tap,script=no,downscript=no,id=net0,ifname=$GUEST_TAP_NAME"
+ add_opts "-device virtio-net-pci,mac=${GUEST_MAC_ADDR},netdev=net0,disable-legacy=on,iommu_platform=true,romfile="
+ else
+ add_opts "-netdev tap,id=net0,ifname=$GUEST_TAP_NAME,script=no,downscript=no"
+ add_opts "-device e1000,mac=${GUEST_MAC_ADDR},netdev=net0,romfile="
+ fi
+}
+stop_network() {
+ if [ "$GUEST_TAP_NAME" = "" ]; then
+ return
+ fi
+ run_cmd "ip tuntap del ${GUEST_TAP_NAME} mode tap"
+}
+
TMP="$UEFI_PATH/OVMF_CODE.fd"
UEFI_CODE="$(readlink -e $TMP)"
[ -z "$UEFI_CODE" ] && {
@@ -170,13 +234,15 @@ fi
QEMU_CMDLINE=/tmp/cmdline.$$
rm -rf $QEMU_CMDLINE
-add_opts "$QEMU_EXE"
+add_opts "taskset --cpu-list 4 $QEMU_EXE"
+
+#add_opts "-device vfio-pci,host=00:01.0,id=net10"
# Basic virtual machine property
add_opts "-enable-kvm -cpu EPYC-v4 -machine q35"
# add number of VCPUs
-[ -n "${SMP}" ] && add_opts "-smp ${SMP},maxcpus=64"
+[ -n "${SMP}" ] && add_opts "-smp ${SMP},maxcpus=4"
# define guest memory
add_opts "-m ${MEM}M,slots=5,maxmem=30G"
@@ -190,11 +256,23 @@ add_opts "-no-reboot"
add_opts "-drive if=pflash,format=raw,unit=0,file=${UEFI_CODE},readonly"
add_opts "-drive if=pflash,format=raw,unit=1,file=${UEFI_VARS}"
+# add CDROM if specified
+[ -n "${CDROM_FILE}" ] && add_opts "-drive file=${CDROM_FILE},media=cdrom -boot d"
+
+# check if host has bridge network
+BR0_STATUS="$(ip link show virbr0 type bridge 2>/dev/null)"
+if [ -n "$BR0_STATUS" ]; then
+ setup_bridge_network
+else
+ # Louis: Added port forwarding
+ add_opts "-netdev user,id=vmnic,hostfwd=tcp::8000-:22 -device e1000,netdev=vmnic,romfile="
+fi
+
# add network support and fwd port 22 to 8000
# echo "guest port 22 is fwd to host 8000..."
-#add_opts "-netdev user,id=vmnic,hostfwd=tcp::8000-:22 -device e1000,netdev=vmnic,romfile="
-add_opts "-netdev user,id=vmnic"
-add_opts " -device virtio-net-pci,disable-legacy=on,iommu_platform=true,netdev=vmnic,romfile="
+# add_opts "-netdev user,id=vmnic,hostfwd=tcp::8000-:22 -device e1000,netdev=vmnic,romfile="
+# add_opts "-netdev user,id=vmnic"
+# add_opts " -device virtio-net-pci,disable-legacy=on,iommu_platform=true,netdev=vmnic,romfile="
# If harddisk file is specified then add the HDD drive
if [ -n "${HDA}" ]; then
@@ -237,8 +315,11 @@ fi
# if -kernel arg is specified then use the kernel provided in command line for boot
if [ "${KERNEL_FILE}" != "" ]; then
add_opts "-kernel $KERNEL_FILE"
- add_opts "-append \"console=ttyS0 earlyprintk=serial root=/dev/sda2\""
+ #add_opts "-append \"console=ttyS0 earlyprintk=serial root=/dev/sda2\""
[ ! -z ${INITRD_FILE} ] && add_opts "-initrd ${INITRD_FILE}"
+ if [[ -n "${APPEND}" ]]; then
+ add_opts "-append \"${APPEND}\""
+ fi
fi
# if console is serial then disable graphical interface
@@ -248,6 +329,13 @@ else
add_opts "-vga ${CONSOLE}"
fi
+
+
+
+# start vnc server
+[ -n "${VNC}" ] && add_opts "-vnc :${VNC}" && echo "Starting VNC on port ${VNC}"
+
+
# start monitor on pty and named socket 'monitor'
add_opts "-monitor pty -monitor unix:monitor,server,nowait"
@@ -274,3 +362,6 @@ bash ${QEMU_CMDLINE} 2>&1 | tee -a ${QEMU_CONSOLE_LOG}
stty intr ^c
rm -rf ${QEMU_CMDLINE}
+if [ -n "$BR0_STATUS" ]; then
+ stop_network
+fi
generated by cgit v1.2.3-71-gd317 (git 2.46.0) at 2025-12-14 12:15:41 +0000