K 10
svn:author
V 3
cem
K 8
svn:date
V 27
2020-04-15T02:00:17.947063Z
K 7
svn:log
V 626
bhyve(8): Add VM Generation Counter ACPI device

Add an implementatation of the 'Virtual Machine Generation ID' spec to
Bhyve.  The spec provides a randomly generated GUID (at bhyve start) in
device memory, along with an ACPI device with _CID VM_Gen_Counter and ADDR
evaluating to a Package pointing at that GUID.

A GPE is defined which Notifies the ACPI Device when the generation changes
(such as when a snapshot is rolled back).  At this time, Bhyve does not
support snapshotting, so the GPE is never actually raised.

Suggested by:	rpokala
Discussed with:	grehan
Differential Revision:	https://reviews.freebsd.org/D23165

END