have a look at the xen vm cfg files.
Create one by yourself, such that it fits your VM, put into /etc/xen and try to start that vm with "xl create XyZ"
Am Freitag, den 05.04.2019, 11:34 -0400 schrieb Ryan Chewning: Ryan Chewning schrieb:
> I'm trying to troubleshoot why i'm unable to launch a Xen HVM guest. I'm
> encountering the following error, *map shared IO page returned error 3 *
>
> /usr/lib64/xen/bin/qemu-dm -boot cd -m 2048M -vnc 127.0.0.1:0
> -drive
> file=/var/lib/xen/ol7-app-template2/ol7-app-template,if=virtio,cache=writeback,format=raw
> -name ol7-app-template -d all
You can not start a Xen guest by just starting the device model (qemu).
You have to use "xl create", which starts qemu among other initializations.
qemu emulates *some* devices, but para-virtualized devices, memory
management etc. are done by the hypervisor, which doesn't know that you
started qemu...
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