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xen: implement xen_hvm_register_pirq

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xen_hvm_register_pirq allows the kernel to map a GSI into a Xen pirq and
receive the interrupt as an event channel from that point on.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Stefano Stabellini 2010-06-24 16:42:04 +01:00
parent 01557baff6
commit 42a1de56f3
3 changed files with 71 additions and 1 deletions
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30
include/xen/interface/physdev.h
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@ -106,6 +106,36 @@ struct physdev_irq {
uint32_t vector;
};
#define MAP_PIRQ_TYPE_MSI 0x0
#define MAP_PIRQ_TYPE_GSI 0x1
#define MAP_PIRQ_TYPE_UNKNOWN 0x2
#define PHYSDEVOP_map_pirq 13
struct physdev_map_pirq {
domid_t domid;
/* IN */
int type;
/* IN */
int index;
/* IN or OUT */
int pirq;
/* IN */
int bus;
/* IN */
int devfn;
/* IN */
int entry_nr;
/* IN */
uint64_t table_base;
};
#define PHYSDEVOP_unmap_pirq 14
struct physdev_unmap_pirq {
domid_t domid;
/* IN */
int pirq;
};
/*
* Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
* hypercall since 0x00030202.