On 08/01/2010 12:01 PM, Gleb Natapov wrote:
It uses rip _during_ pio. And pio emulation changes rip
only at the end of emulation.
But non-emulated pio does a skip_emulated_instruction() immediately
(or so the code in kvm-tpr-opt.c assumes:
Indeed, this is bug in non-emulated pio.
But userspace depends on this bug.
But the patch does not change
rip behaviour for emulated pio. vcpu->arch.emulate_ctxt.eip is updated
only at the end of emulation.
That will lead to failures if the emulator is used for the kvm-tpr-opt
pio (which may happen with big real mode).
--
error compiling committee.c: too many arguments to function
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