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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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