On 06/10/2010 01:15 PM, Pekka Enberg wrote:
On 06/10/2010 12:52 PM, Pekka Enberg wrote:
I see there's a KVM_GET_MP_STATE ioctl that can be used to check if
state is KVM_MP_STATE_HALTED but as we never exit to the hypervisor,
how is this supposed to work? Am I missing something obvious here?
On 6/10/10 1:03 PM, Avi Kivity wrote:
In general you only rarely want to check the state (example are for
debugging and for live migration). It's not a stable value (the guest
executing HLT, or a guest interrupt delivered, will change its value).
What's your use case?
Well, power off, basically. Specifically, running a small test
'kernel' that exists after it's done its work. I guess the thing I was
missing was that hlt is really for other purposes than power off. I
guess it's up to the hypervisor to emulate APM or something and stop
the hypervisor there?
HLT has nothing to do with power off. Qemu emulates ACPI power
management, you can either do that or roll your own (for example an I/O
port that calls exit(0) when the guest accesses it).
--
error compiling committee.c: too many arguments to function
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
