[Xen-devel] translate pirq to irq

[Igor Kozhukhov <ikozhukhov@xxxxxxxxx>]

Hello All,

I see a comment in physdev.h for 'struct physdev_map_pirq', var 'pirq':
/* IN - high 16 bits hold segment for MAP_PIRQ_TYPE_MSI_SEG */

i have received 'pirq' from hypervisor > 255.

map_irq.domid = DOMID_SELF;                                                   
map_irq.type = MAP_PIRQ_TYPE_MSI;                                             
map_irq.index = -1; /* hypervisor auto allocates vector */                    
map_irq.pirq = -1;                                                            
map_irq.bus = busnum;                                                         
map_irq.devfn = devfn;                                                        
map_irq.entry_nr = i;                                                         
map_irq.table_base = 0;                                              
rc = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &map_irq);                     
irqno = map_irq.pirq;

i have:
irqno = 279 - it is more APIC_MAX_VECTOR(255)

i have a question: how to correct translate pirq to irq for APIC map table ?

all work well on xen-3.4, but it has another realization in function 
physdev_map_pirq() then for xen-4.2.

--
Best regards,
Igor Kozhukhov





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