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|
##################################################################
# qemu/kvm include: determine virtual hardware based on guest OS #
##################################################################
set_vm_hw_limits() {
# FIXME when we have better metadata for qemu
if isempty VM_OS_TYPE; then
writelog "VM_OS_TYPE is empty! This should have been parsed from the XML file"
EXIT_TYPE="user" EXIT_REASON="Konnte Gastbetriebsystems der virtuellen Maschine nicht ermitteln!" cleanexit 1
fi
# define global hardware-related variables
declare -g MAXMEM="9999999"
declare -g MAXCORES="4"
declare -g SOUND_DEV="es1370"
# determine if we need a 32bit or 64bit machine
# FIXME depending on the guest OS for now
# (sadly does not support all the exotic OSs the
# the world has even seen like vmware plugin :<)
local bits=64
case "${VM_OS_TYPE}" in
beos*)
bits=32
SOUND_DEV="sb16"
;;
win3*|win*3*|Win*3*)
bits=32
SOUND_DEV="sb16"
MAXMEM=32
;;
win95*|Win*95)
bits=32
MAXMEM=96
;;
win98)
bits=32
MAXMEM=256
;;
winme*|windowsme*)
bits=32
SOUND_DEV="ac97"
MAXMEM=384
;;
winxp*64|windowsxp*64)
SOUND_DEV="ac97"
;;
windows7|windows8|windows9)
SOUND_DEV="ac97"
MAXMEM="8000"
MAXCORES="4"
;;
windows7-64|windows8-64|windows9-64)
SOUND_DEV="ac97"
MAXMEM="32000"
MAXCORES="8"
;;
*64)
MAXMEM="16000"
MAXCORES="4"
;;
*)
bits=32
MAXMEM="8000"
MAXCORES="1"
;;
esac
declare -g VIRTCMD
if [ "$bits" = 32 ]; then
declare -rg VIRTCMD="qemu-system-i386"
VIRTCMDOPTS+=( "-machine" "accel=tcg" ) # TODO: 32bit VMs can't use kvm!?
else # 64 bit
declare -rg VIRTCMD="qemu-system-x86_64"
VIRTCMDOPTS+=( "-machine" "accel=kvm" )
fi
# check for allocated cores
declare -g CPU_CORES="${HW_THREADS:-1}"
declare -rg HOST_CORE_COUNT="${CPU_CORES}"
[ "${CPU_CORES}" -gt "${MAXCORES}" ] && CPU_CORES="${MAXCORES}"
# check if memory set by the generic run-virt is above the threshold
[ "${VM_MEM}" -gt "${MAXMEM}" ] && VM_MEM="${MAXMEM}"
return 0
}
## MAIN ##
call_post_source set_vm_hw_limits
|
