Difference between revisions of "Virtualization"
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Chatcannon (talk | contribs) (Tip for running 64k guests on a 4k host) |
Chatcannon (talk | contribs) (Add links to more documentation) |
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| + | ==Further Information== | ||
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| + | * [https://docs.voidlinux-ppc.org/configuration/virtualization.html VoidLinux PPC documentation on Virtualization] | ||
| + | * [https://wiki.qemu.org/Documentation/Platforms/POWER QEMU documentation about POWER guests] | ||
Revision as of 12:40, 8 November 2021
Running 64k guests on 4k hosts
When trying to start a VM on a host running with 4k pages, you might see the following error message:
qemu-system-ppc64: Can't support 64 kiB guest pages with 4 kiB host pages with this KVM implementation
There is an easy workaround for this. If running QEMU directly, add the argument -machine pseries,cap-hpt-max-page-size=4096. If running QEMU via libvirt, add the following section to the guest's libvirt XML (via virsh edit [guest name] or the XML tab in virt-manager):
<features>
<hpt>
<maxpagesize unit='KiB'>4</maxpagesize>
</hpt>
</features>
