On 11/16/2010 06:56 PM, Avi Kivity wrote:
On 11/16/2010 06:43 PM, Peter Zijlstra wrote:
No. Hypercalls are voluntary and known, but most exits are involuntary
and unknown to the guest. Any memory access can generate a page fault,
and any host interrupt will exit the guest.
Right, but we could not make the guest jump to a special stub on vcpu
enter? I guess we could simply because we have the hypervisor under
control.
No, some entries inject an interrupt or exception, so the next rip
value is unknown (without doing a lot of extra slow calculations).
Also, consider an exit within the stub (if the stub is paged out, for
example).
--
error compiling committee.c: too many arguments to function
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