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>

2 files changed, 2 insertions, 13 deletions

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 2bd06b018b32..0ebe9225b171 100644
--- 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 55ef181521ff..9c9ca7c7b491 100644
--- 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;