Re: [Qemu-devel] [PATCH 1/2] [RFC] Make vmport report the processor speed

[Jamie Lokier]

Alexander Graf wrote:
> If VMware ESX finds itself virtualized (read: inside VMware), it
> reads the TSC speed from its backdoor, because measuring the TSC
> inside a VM is not exact.
> 
> This patch implements a hacky way to detect the TSC speed and passes
> that through to the VM. I am open to suggestions on how to improve
> the behavior.  It also adds a magic return value of 2 on the version
> return, which is required by VMware ESX.  WARNING: This
> implementation breaks on non-x86 hosts!

If you run _this_ code as a guest inside itself, shouldn't it _call_
VMPORT_CMD_GETPROCSPEED to get the value? :-)

-- Jamie