how to pass kernel parameters to VMs

[Steve Roth]

Hi all,

Is there any way when starting a VM to override/pass kernel parameters, 
such as single?  (for single-user mode)

I guess this presumes Linux VMs.

We're looking for a way to pass a 'purpose' to a VM (other than its 
name).   One way would appear to be the 'userdata' field in the 
deployVirtualMachine API  (presuming there is a way to fetch this value 
once the VM boots up).     I'm just wondering if we could use a kernel 
parameter as well.

If it's helpful, we are using KVM as our hypervisor.

Thanks!
-Steve