summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--virtio-spec.txt12
1 files changed, 6 insertions, 6 deletions
diff --git a/virtio-spec.txt b/virtio-spec.txt
index 6bf1ca8..3b5cb18 100644
--- a/virtio-spec.txt
+++ b/virtio-spec.txt
@@ -295,10 +295,10 @@ is ignored.
2.1.4.4 The Virtqueue Available Ring
------------------------------------
-The available ring refers to what descriptors we are offering the
-device: it refers to the head of a descriptor chain. The “flags” field
+The available ring refers to what descriptor chains we are offering the
+device: each entry refers to the head of a descriptor chain. The “flags” field
is currently 0 or 1: 1 indicating that we do not need an interrupt
-when the device consumes a descriptor from the available
+when the device consumes a descriptor chain from the available
ring. Alternatively, the guest can ask the device to delay interrupts
until an entry with an index specified by the “used_event” field is
written in the used ring (equivalently, until the idx field in the
@@ -493,7 +493,7 @@ above. A naive implementation would do the following:
avail->ring[avail->idx % qsz] = head;
-However, in general we can add many descriptors before we update
+However, in general we can add many descriptor chains before we update
the “idx” field (at which point they become visible to the
device), so we keep a counter of how many we've added:
@@ -503,7 +503,7 @@ device), so we keep a counter of how many we've added:
----------------------------------
Once the index field of the virtqueue is updated, the device will
-be able to access the descriptor entries we've created and the
+be able to access the descriptor chains we've created and the
memory they refer to. This is why a memory barrier is generally
used before the index update, to ensure it sees the most up-to-date
copy.
@@ -1090,7 +1090,7 @@ Discovering what devices are available and their type is bus-dependent.
+------------+--------------------+
| 11 | rproc serial |
+------------+--------------------+
-| 12 | CAIF |
+| 12 | virtio CAIF |
+------------+--------------------+
2.5.1 Network Device