X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=OvmfPkg%2FXenBusDxe%2FEventChannel.h;h=4dcc20f73bfc9989159eae70112fd83c11b229fe;hb=bae5ddc057959f264cfedad2b512afc770b1ee7f;hp=5f3171d7ca289b36ec47e41f4c375ecb62be71c7;hpb=f1259bba3647beb30b7c5e2e7dbe6ba060814912;p=mirror_edk2.git

diff --git a/OvmfPkg/XenBusDxe/EventChannel.h b/OvmfPkg/XenBusDxe/EventChannel.h
index 5f3171d7ca..4dcc20f73b 100644
--- a/OvmfPkg/XenBusDxe/EventChannel.h
+++ b/OvmfPkg/XenBusDxe/EventChannel.h
@@ -33,4 +33,56 @@ XenEventChannelNotify (
   IN evtchn_port_t Port
   );
 
+/*
+ * XenBus protocol
+ */
+
+/**
+  Allocate a port that can be bind from domain DomainId.
+
+  @param This       A pointer to the XENBUS_PROTOCOL.
+  @param DomainId   The domain ID that can bind the newly allocated port.
+  @param Port       A pointer to a evtchn_port_t that will contain the newly
+                    allocated port.
+
+  @retval UINT32    The return value from the hypercall, 0 if success.
+**/
+UINT32
+EFIAPI
+XenBusEventChannelAllocate (
+  IN  XENBUS_PROTOCOL *This,
+  IN  domid_t         DomainId,
+  OUT evtchn_port_t   *Port
+  );
+
+/**
+  Send an event to the remote end of the channel whose local endpoint is Port.
+
+  @param This       A pointer to the XENBUS_PROTOCOL.
+  @param Port       Local port to the the event from.
+
+  @retval UINT32    The return value from the hypercall, 0 if success.
+**/
+UINT32
+EFIAPI
+XenBusEventChannelNotify (
+  IN XENBUS_PROTOCOL *This,
+  IN evtchn_port_t   Port
+  );
+
+/**
+  Close a local event channel Port.
+
+  @param This       A pointer to the XENBUS_PROTOCOL.
+  @param Port       The event channel to close.
+
+  @retval UINT32    The return value from the hypercall, 0 if success.
+**/
+UINT32
+EFIAPI
+XenBusEventChannelClose (
+  IN XENBUS_PROTOCOL *This,
+  IN evtchn_port_t   Port
+  );
+
 #endif