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-rw-r--r--include/xen/interface/io/netif.h12
-rw-r--r--include/xen/interface/io/protocols.h2
2 files changed, 13 insertions, 1 deletions
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index 3ef3fe05ee99..eb262e3324d2 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -38,6 +38,18 @@
* that it cannot safely queue packets (as it may not be kicked to send them).
*/
+ /*
+ * "feature-split-event-channels" is introduced to separate guest TX
+ * and RX notificaion. Backend either doesn't support this feature or
+ * advertise it via xenstore as 0 (disabled) or 1 (enabled).
+ *
+ * To make use of this feature, frontend should allocate two event
+ * channels for TX and RX, advertise them to backend as
+ * "event-channel-tx" and "event-channel-rx" respectively. If frontend
+ * doesn't want to use this feature, it just writes "event-channel"
+ * node as before.
+ */
+
/*
* This is the 'wire' format for packets:
* Request 1: xen_netif_tx_request -- XEN_NETTXF_* (any flags)
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 0eafaf254fff..056744b4b05e 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -15,7 +15,7 @@
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_IA64
#elif defined(__powerpc64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_POWERPC64
-#elif defined(__arm__)
+#elif defined(__arm__) || defined(__aarch64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_ARM
#else
# error arch fixup needed here