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Subject[PATCH 39/44] KVM: Add fields for MSI device assignment
Date
From: Sheng Yang <sheng@linux.intel.com>

Prepared for kvm_arch_assigned_device_msi_dispatch().

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
include/linux/kvm.h | 7 +++++++
include/linux/kvm_host.h | 4 ++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 44fd7fa..bb283c3 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -507,10 +507,17 @@ struct kvm_assigned_irq {
__u32 guest_irq;
__u32 flags;
union {
+ struct {
+ __u32 addr_lo;
+ __u32 addr_hi;
+ __u32 data;
+ } guest_msi;
__u32 reserved[12];
};
};

#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)

+#define KVM_DEV_IRQ_ASSIGN_ENABLE_MSI (1 << 0)
+
#endif
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c3d4b96..8091a4d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -16,6 +16,7 @@
#include <linux/mm.h>
#include <linux/preempt.h>
#include <linux/marker.h>
+#include <linux/msi.h>
#include <asm/signal.h>

#include <linux/kvm.h>
@@ -307,8 +308,11 @@ struct kvm_assigned_dev_kernel {
int host_devfn;
int host_irq;
int guest_irq;
+ struct msi_msg guest_msi;
#define KVM_ASSIGNED_DEV_GUEST_INTX (1 << 0)
+#define KVM_ASSIGNED_DEV_GUEST_MSI (1 << 1)
#define KVM_ASSIGNED_DEV_HOST_INTX (1 << 8)
+#define KVM_ASSIGNED_DEV_HOST_MSI (1 << 9)
unsigned long irq_requested_type;
int irq_source_id;
struct pci_dev *dev;
--
1.6.0.3


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