Commit 1d8f2e48ff for qemu.org

commit 1d8f2e48ff81cd90fcccf24e52cfbfe9cff09bb1
Author: Lukas Straub <lukasstraub2@web.de>
Date:   Mon Mar 2 12:45:30 2026 +0100

    qemu-colo.rst: Miscellaneous changes

    Reviewed-by: Fabiano Rosas <farosas@suse.de>
    Reviewed-by: Zhang Chen <zhangckid@gmail.com>
    Signed-off-by: Lukas Straub <lukasstraub2@web.de>
    Link: https://lore.kernel.org/qemu-devel/20260302-colo_unit_test_multifd-v11-15-d653fb3b1d80@web.de
    Signed-off-by: Fabiano Rosas <farosas@suse.de>

diff --git a/docs/system/qemu-colo.rst b/docs/system/qemu-colo.rst
index 7c771030a1..ec73677e5e 100644
--- a/docs/system/qemu-colo.rst
+++ b/docs/system/qemu-colo.rst
@@ -3,10 +3,6 @@
 Qemu COLO Fault Tolerance
 =========================

-| Copyright (c) 2016 Intel Corporation
-| Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
-| Copyright (c) 2016 Fujitsu, Corp.
-
 This document gives an overview of COLO's design and how to use it.

 Background
@@ -81,8 +77,8 @@ Overview::
         |   Storage     |  |External Network|       | External Network | |   Storage    |
         +---------------+  +----------------+       +------------------+ +--------------+

-Components introduction
-^^^^^^^^^^^^^^^^^^^^^^^
+Components
+^^^^^^^^^^
 You can see there are several components in COLO's diagram of architecture.
 Their functions are described below.

@@ -156,14 +152,21 @@ in test procedure.

 Test procedure
 --------------
-Note: Here we are running both instances on the same host for testing,
+
+Setup
+^^^^^
+
+Here we are running both instances on the same host for testing,
 change the IP Addresses if you want to run it on two hosts. Initially
 ``127.0.0.1`` is the Primary Host and ``127.0.0.2`` is the Secondary Host.

+COLO uses double the guest ram size on the secondary side. The Qemu version
+should be the same on both hosts.
+
 Startup qemu
 ^^^^^^^^^^^^
 **1. Primary**:
-Note: Initially, ``$imagefolder/primary.qcow2`` needs to be copied to all hosts.
+Initially, ``$imagefolder/primary.qcow2`` needs to be copied to all hosts.
 You don't need to change any IP's here, because ``0.0.0.0`` listens on any
 interface. The chardev's with ``127.0.0.1`` IP's loopback to the local qemu
 instance::
@@ -191,7 +194,7 @@ instance::


 **2. Secondary**:
-Note: Active and hidden images need to be created only once and the
+Active and hidden images need to be created only once and the
 size should be the same as ``primary.qcow2``. Again, you don't need to change
 any IP's here, except for the ``$primary_ip`` variable::

@@ -352,8 +355,6 @@ Wait until disk is synced, then::
     {"execute": "migrate-set-capabilities", "arguments":{ "capabilities": [ {"capability": "x-colo", "state": true } ] } }
     {"execute": "migrate", "arguments":{ "uri": "tcp:127.0.0.1:9998" } }

-TODO
-----
-1. Support shared storage.
-2. Develop the heartbeat part.
-3. Reduce checkpoint VM’s downtime while doing checkpoint.
+| Copyright (c) 2016 Intel Corporation
+| Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
+| Copyright (c) 2016 Fujitsu, Corp.