[Xen-devel] permit_access functionality

["Jayant Mangalampalli" <Jayant_Mangalampalli@xxxxxxxxxxx>]

What is the exact use of ioport_permit_access() and irq_permit_access() kind of 
functions? If I permit port/irq access to HVM guest for a particular port or 
IRQ, does that mean guest VCPU does not issue a hypercall when accessing them? 
If a PIRQ is asserted by physical hardware, can hvm guest directly get 
notification if given such access?
 
Thanks
Jayant

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