diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index dd3e7ae33e..a44a086ee1 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -1391,6 +1391,29 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
 
    <glossdiv id='var-glossary-k'><title>K</title>
 
+        <glossentry id='var-KARCH'><glossterm>KARCH</glossterm>
+            <glossdef>
+                <para>
+                    Defines the kernel architecture to be used in assembling
+                    the configuration.
+                    Architectures supported for this release are:
+                    <literallayout class='monospaced'>
+     powerpc
+     arm
+     i386
+     mips
+     powerpc
+     x86_64
+                    </literallayout>
+                </para>
+
+                <para>
+                    You define the <filename>KARCH</filename> variable in the
+                    <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#bsp-descriptions'>BSP Descriptions</ulink>.
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-KBRANCH'><glossterm>KBRANCH</glossterm>
             <glossdef>
                 <para>
@@ -1571,6 +1594,28 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-KTYPE'><glossterm>KTYPE</glossterm>
+            <glossdef>
+                <para>
+                    Defines the kernel type to be used in assembling the
+                    configuration.
+                    The linux-yocto recipes define "standard", "tiny",
+                    and "preempt-rt" kernel types.
+                    See the
+                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#kernel-types'>Kernel Types</ulink>"
+                    section in the Yocto Project Linux Kernel Development
+                    Manual for more information on kernel types.
+                </para>
+
+                <para>
+                    You define the <filename>KTYPE</filename> variable in the
+                    <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#bsp-descriptions'>BSP Descriptions</ulink>.
+                    The value you use must match the value used for the
+                    <link linkend='var-LINUX_KERNEL_TYPE'><filename>LINUX_KERNEL_TYPE</filename></link>
+                    value used by the kernel recipe.
+                </para>
+            </glossdef>
+        </glossentry>
    </glossdiv>
 
     <glossdiv id='var-glossary-l'><title>L</title>