Document the LIBGUESTFS_MEMSIZE environment variable.

[libguestfs.git] / guestfs.pod

diff --git a/guestfs.pod b/guestfs.pod
index 10c6ad8..0cb3d9d 100644 (file)
--- a/guestfs.pod
+++ b/guestfs.pod
@@ -205,6 +205,14 @@ search the current directory and then C</usr/lib/guestfs>.
 
 =head1 HIGH-LEVEL API ACTIONS
 
+=head2 ABI GUARANTEE
+
+We guarantee the libguestfs ABI (binary interface), for public,
+high-level actions as outlined in this section.  Although we will
+deprecate some actions, for example if they get replaced by newer
+calls, we will keep the old actions forever.  This allows you the
+developer to program in confidence against libguestfs.
+
 @ACTIONS@
 
 =head1 STRUCTURES
@@ -788,6 +796,13 @@ See also L<QEMU WRAPPERS> above.
 
 Pass additional options to the guest kernel.
 
+=item LIBGUESTFS_MEMSIZE
+
+Set the memory allocated to the qemu process, in megabytes.  For
+example:
+
+ LIBGUESTFS_MEMSIZE=700
+
 =back
 
 =head1 SEE ALSO