KVM: Clarify KVM_ASSIGN_PCI_DEVICE documentation

Neither host_irq nor the guest_msi struct are used anymore today.
Tag the former, drop the latter to avoid confusion.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 2bd06b0..0ebe922 100644 (file)
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1143,15 +1143,10 @@ Assigns an IRQ to a passed-through device.
 
 struct kvm_assigned_irq {
        __u32 assigned_dev_id;
-       __u32 host_irq;
+       __u32 host_irq; /* ignored (legacy field) */
        __u32 guest_irq;
        __u32 flags;
        union {
-               struct {
-                       __u32 addr_lo;
-                       __u32 addr_hi;
-                       __u32 data;
-               } guest_msi;
                __u32 reserved[12];
        };
 };

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 55ef181..9c9ca7c 100644 (file)
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -773,20 +773,14 @@ struct kvm_assigned_pci_dev {
 
 struct kvm_assigned_irq {
        __u32 assigned_dev_id;
-       __u32 host_irq;
+       __u32 host_irq; /* ignored (legacy field) */
        __u32 guest_irq;
        __u32 flags;
        union {
-               struct {
-                       __u32 addr_lo;
-                       __u32 addr_hi;
-                       __u32 data;
-               } guest_msi;
                __u32 reserved[12];
        };
 };
 
-
 struct kvm_assigned_msix_nr {
        __u32 assigned_dev_id;
        __u16 entry_nr;