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authorZhai Edwin <edwin.zhai@intel.com>2010-12-22 21:22:24 +0800
committerRichard Purdie <rpurdie@linux.intel.com>2010-12-23 14:28:22 +0000
commit983bd9a77e4afdb2890245653f39d6c6d093a655 (patch)
tree654fee2ef0cb1d05c0a18f6adcf0a7c840c0aaa6 /scripts
parent3aa1cfc5a852f18208ee2afb535c1d05d6d162fa (diff)
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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>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/poky-qemu25
1 files changed, 22 insertions, 3 deletions
diff --git a/scripts/poky-qemu b/scripts/poky-qemu
index 313248ff49..b19a89ddab 100755
--- a/scripts/poky-qemu
+++ b/scripts/poky-qemu
@@ -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