On 01/12/2015 16:25, Eduardo Habkost wrote:
> > I think it's easier to use small guests (i.e. kvm-unit-tests) to test
> > this code.
> I agree it's easier, but how likely it is to catch bugs in the
> save/load code? If the code corrupts a register, we need to
> trigger a save/load cycle at the exact moment the guest code is
> using that register. Do we have something that helps us
> repeatedly save/load CPU state while kvm-unit-tests is running?

A vmware magic port read should do that.  Put VMPORT_MAGIC in EAX and
VMPORT_CMD_GETVERSION in ECX, then do a 32-bit in from port 0x5658.

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