vm'ed KNOS doesn't shut down

[pharrisire]

Here's another oddity for ya -
the vm'ed KNOS reboots instead of shutting down
System>Shut Down>Shut Down yields a reboot instead
of a shut down.
'Restart' operates as expected.
KNOS does shut down using the Machine>ACPI Shutdown command
from the Host - just not from inside the vm

[Kevin McAleavey]

Oct 4, 2010 14:22:51 GMT -5 pharrisire said:

Here's another oddity for ya -
the vm'ed KNOS reboots instead of shutting down
System>Shut Down>Shut Down yields a reboot instead
of a shut down.
'Restart' operates as expected.
KNOS does shut down using the Machine>ACPI Shutdown command
from the Host - just not from inside the vm

Actually, that doesn't come as a big surprise. KNOS *fully* talks to registers on the motherboard rather than VM'ing things like Windows or Linux. When you don't allow "intermediate" layers between the kernel and the hardware, makes it all the more "difficult" to shim in a rootkit or other bad things.

KNOS shutdown and restart is designed to talk directly to the ACPI registers on the motherboard rather than going through BIOS. As a result, I can imagine that your VM would want to intercept the shutdown command since KNOS would try to pull the rug out from the VM when a shutdown is ordered. The whole machine would shut down. So I'm not surprised at the intercept to that call.