linux-kernel - [PATCH 2/7] KVM: kvm_host: add kvm_extended

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Message-Id: <1435592237-17924-3-git-send-email-eric.auger@linaro.org>
Date:	Mon, 29 Jun 2015 17:37:12 +0200
From:	Eric Auger <eric.auger@...aro.org>
To:	eric.auger@...com, eric.auger@...aro.org,
	linux-arm-kernel@...ts.infradead.org, marc.zyngier@....com,
	christoffer.dall@...aro.org, andre.przywara@....com,
	kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, patches@...aro.org,
	p.fedin@...sung.com, pbonzini@...hat.com
Subject: [PATCH 2/7] KVM: kvm_host: add kvm_extended_msi

Add a new kvm_extended_msi struct to store the additional device ID
specific to ARM. kvm_kernel_irq_routing_entry union now encompasses
this new struct.

Signed-off-by: Eric Auger <eric.auger@...aro.org>

---

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

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ad45054..e1c1c0d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -304,6 +304,13 @@ struct kvm_s390_adapter_int {
 	u32 adapter_id;
 };
 
+struct kvm_extended_msi {
+	u32     address_lo;     /* low 32 bits of msi message address */
+	u32     address_hi;     /* high 32 bits of msi message address */
+	u32     data;           /* 16 bits of msi message data */
+	u32	devid;		/* out-of-band device ID */
+};
+
 struct kvm_kernel_irq_routing_entry {
 	u32 gsi;
 	u32 type;
@@ -317,6 +324,7 @@ struct kvm_kernel_irq_routing_entry {
 		} irqchip;
 		struct msi_msg msi;
 		struct kvm_s390_adapter_int adapter;
+		struct kvm_extended_msi ext_msi;
 	};
 	struct hlist_node link;
 };
-- 
1.9.1

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