On 28/09/2018 14:55, Omkar Bolla wrote: > Hi, > I tried to run script after pause the domain and unpause domain after > run script. But I ended up with same error
I looked at the script again, it is wrong. The permissions should be set for each node under the root path of the respective domains, the first permission should be "n$domid" ($domid is the owner who can always read/write, the n is "no access" for all domains not explicitly listed), the second permission should be "r$domid" as the other side should be able to read only. In order to do it correctly the script should be: #!/bin/bash DOMU_ID=$1 if [ -z "$DOMU_ID" ]; then echo "Usage: $0 [domU ID]]" echo echo "Connects the new device, with dom0 as backend, domU as frontend" exit 1 fi # Pause domU as a script can't write an entry and set permission # in a single operation. xl pause $DOMU_ID DEVICE=mydevice DOMU_KEY=/local/domain/$DOMU_ID/device/$DEVICE/0 DOM0_KEY=/local/domain/0/backend/$DEVICE/$DOMU_ID/0 # Tell the domU about the new device and its backend xenstore-write $DOMU_KEY/backend-id 0 xenstore-write $DOMU_KEY/backend "/local/domain/0/backend/$DEVICE/$DOMU_ID/0" # Tell the dom0 about the new device and its frontend xenstore-write $DOM0_KEY/frontend-id $DOMU_ID xenstore-write $DOM0_KEY/frontend "/local/domain/$DOMU_ID/device/$DEVICE/0" # Activate the device, dom0 needs to be activated last xenstore-write $DOMU_KEY/state 1 xenstore-write $DOM0_KEY/state 1 # Make sure the domU can read the dom0 data xenstore-chmod -r $DOM0_KEY n0 r$DOMU_ID xenstore-chmod -r $DOMU_KEY n$DOMU_ID r0 xl unpause $DOMU_ID Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
