[BitVisor-devel-en:32] about ipi interrupt

[zhang zhi]

Dear all,

 

         In the context of multi-core mode, core 1 is in root-mode, meaning
that it's running VMM, and core 2 is in non-root mode, meaning that it's
running guest OS. If core 1 wants to send an IPI to core2 in order to cause
core2 exit back to root-mode, then core 1 should set its own apic_icr.
Right?

The problem is that bitvisor only defines 32-bit of apic_icr which means
that the destination field ranging from bits 56 to 63 can't be used. 

Moreover, the function vt__exit_reason also does not define such an event,
thus it can not handle a case like : EXIT_REASON_IPI. I have noticed that it
can handle the case of EXIT_REASON_STARTUP_IPI. 

Need I define a handler of case as EXIT_REASON_IPI as well as a new apic_icr
of 64 bit ?

Can anyone give me some advice?

Thanks!

 

Regards,

henry

 

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