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[RFC,v9,2/6] KVM: Add devid in kvm_kernel_irq_routing_entry

Message ID 1469204442-3220-3-git-send-email-eric.auger@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Eric Auger July 22, 2016, 4:20 p.m. UTC
Enhance kvm_kernel_irq_routing_entry to transport the device id
field, devid. A new flags field makes possible to indicate the
devid is valid. Those additions are used for ARM GICv3 ITS MSI
injection. The original struct msi_msg msi field is replaced by
a new custom structure that embeds the new fields.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Radim Krčmář <rkrcmar@redhat.com>

---
v7 -> v8:
- replace struct msi_msg by a new custom structure
- removed Christoffer's A-b

v6 -> v7:
- added msi_ prefix to flags and dev_id fields

v4 -> v5:
- add Christoffer's R-b

v2 -> v3:
- add flags

v1 -> v2:
- replace msi_msg field by a struct composed of msi_msg and devid

RFC -> PATCH:
- reword the commit message after change in first patch (uapi)
---
 include/linux/kvm_host.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c87fe6f..e33e85e 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -317,7 +317,13 @@  struct kvm_kernel_irq_routing_entry {
 			unsigned irqchip;
 			unsigned pin;
 		} irqchip;
-		struct msi_msg msi;
+		struct {
+			u32 address_lo;
+			u32 address_hi;
+			u32 data;
+			u32 flags;
+			u32 devid;
+		} msi;
 		struct kvm_s390_adapter_int adapter;
 		struct kvm_hv_sint hv_sint;
 	};