Run PV in PVH container
From Xen
Jump to navigationJump to search
Xen 4.11 support running of unmodified legacy PV-only guest to be run in PVH mode. This allows users to run old, PV-only distros. This simplifies management and reduces the surface of attack significantly. Note that slide 15 of this presentation gives an architectural overview of PVH shim.
Converting a PV config to a PVH shim config
- Shutdown VM
- Remove any reference to
builder
(e.g.,builder="generic"
) - Add the following two lines:
type="pvh" pvshim=1
- Restart VM
Converting a PV config to a PVH config
If you have a kernel capable of booting PVH, then PVH mode is both faster and more secure than PV or PVH-shim mode. |
- Shutdown VM
- Remove any reference to
builder
(e.g.,builder="generic"
) - Add the following two lines:
type="pvh"
- Restart VM