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qemu: Add some checks before enabling KVM 

Check the missing modules and permission with informative output.

[BUGID #599] got fixed.

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
This commit is contained in:
Zhai Edwin 2010-12-22 21:22:24 +08:00 committed by Richard Purdie
parent 3aa1cfc5a8
commit 983bd9a77e
1 changed files with 22 additions and 3 deletions
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25
scripts/poky-qemu
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@ -29,7 +29,7 @@ usage() {
echo " Additional QEMU command-line options can be passed with:"
echo " nographic - disables video console"
echo " serial - enables a serial console on /dev/ttyS0"
echo " kvm - enables kvm"
echo " kvm - enables KVM when running qemux86/qemux86-64, VT capable CPU required"
echo " \"<extra-qemu-options>\" - enables extra qemu options, excluding serial and kvm"
echo ""
echo "Examples:"
@ -171,10 +171,29 @@ while [ $i -le $# ]; do
i=$((i + 1))
done
POKY_KVM_WIKI="https://wiki.yoctoproject.org/wiki/How_to_enable_KVM_for_Poky_qemu"
# Detect KVM configuration
if [[ "x$KVM_ENABLED" == "xyes" && ! -z "$KVM_CAPABLE" ]]; then
if [[ "x$MACHINE" == "xqemux86" || "x$MACHINE" == "xqemux86-64" ]]; then
if [[ "x$KVM_ENABLED" == "xyes" ]]; then
if [[ -z "$KVM_CAPABLE" ]]; then
echo "You are tring to enable KVM on cpu without VT support. Remove kvm from the command-line, or refer";
echo "$POKY_KVM_WIKI";
exit 1;
fi
if [[ "x$MACHINE" != "xqemux86" && "x$MACHINE" != "xqemux86-64" ]]; then
echo "KVM only support x86 & x86-64. Remove kvm from the command-line";
exit 1;
fi
if [ ! -e /dev/kvm ]; then
echo "Missing KVM device. Have you inserted kvm modules? Pls. refer";
echo "$POKY_KVM_WIKI";
exit 1;
fi
if 9<>/dev/kvm ; then
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -enable-kvm"
else
echo "You have no rights on /dev/kvm. Pls. change the owndership as described at";
echo "$POKY_KVM_WIKI";
exit 1;
fi
fi