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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2010-06-24 16:42:04 +0100
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2010-10-22 21:25:41 +0100
commit42a1de56f35a9c87932f45439dc1b09c8da0cc95 (patch)
tree4be6a92222ef2efabd1705cd6b3adb7832f7f9a9 /drivers/xen
parent01557baff6e9c371d4c96e01089dca32cf347500 (diff)
downloadop-kernel-dev-42a1de56f35a9c87932f45439dc1b09c8da0cc95.zip
op-kernel-dev-42a1de56f35a9c87932f45439dc1b09c8da0cc95.tar.gz
xen: implement xen_hvm_register_pirq
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>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/events.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 07e56e5..239b011 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -36,6 +36,7 @@
#include <asm/idle.h>
#include <asm/io_apic.h>
#include <asm/sync_bitops.h>
+#include <asm/xen/pci.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
@@ -75,7 +76,8 @@ enum xen_irq_type {
* event channel - irq->event channel mapping
* cpu - cpu this event channel is bound to
* index - type-specific information:
- * PIRQ - vector, with MSB being "needs EIO"
+ * PIRQ - vector, with MSB being "needs EIO", or physical IRQ of the HVM
+ * guest, or GSI (real passthrough IRQ) of the device.
* VIRQ - virq number
* IPI - IPI vector
* EVTCHN -
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