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KVM: api: Pass the devid in the msi routing entry

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On ARM, the MSI msg (address and data) comes along with
out-of-band device ID information. The device ID encodes the
device that writes the MSI msg. Let's convey the device id in
kvm_irq_routing_msi and use KVM_MSI_VALID_DEVID flag value in
kvm_irq_routing_entry to indicate the msi devid is populated.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Eric Auger
2016-07-22 16:20:37 +00:00
committed by Marc Zyngier
parent 3a88bded20
commit 76a10b8678
2 changed files with 21 additions and 3 deletions
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5
include/uapi/linux/kvm.h
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@@ -879,7 +879,10 @@ struct kvm_irq_routing_msi {
__u32 address_lo;
__u32 address_hi;
__u32 data;
__u32 pad;
union {
__u32 pad;
__u32 devid;
};
};
struct kvm_irq_routing_s390_adapter {