diff --git a/docs/formatdomaincaps.html.in b/docs/formatdomaincaps.html.in
index 915ece8e3e..35b8bf3def 100644
--- a/docs/formatdomaincaps.html.in
+++ b/docs/formatdomaincaps.html.in
@@ -681,6 +681,12 @@
reducedPhysBits
When memory encryption is enabled, we lose certain bits in physical
address space. The number of bits we lose is hypervisor dependent.
+ maxGuests
+ The maximum number of SEV guests that can be launched on the host.
+ This value may be configurable in the firmware for some hosts.
+ maxESGuests
+ The maximum number of SEV-ES guests that can be launched on the host.
+ This value may be configurable in the firmware for some hosts.