From: Ludwig Nussel <ludwig.nussel@suse.de>
Date: Wed, 10 Aug 2022 12:21:50 +0000 (+0200)
Subject: docs: mention qemu fw_cfg size limitation
X-Git-Tag: v252-rc1~462^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9c28539a950851055552b0255a73c0fae45dcea5;p=thirdparty%2Fsystemd.git

docs: mention qemu fw_cfg size limitation
---

diff --git a/docs/CREDENTIALS.md b/docs/CREDENTIALS.md
index 4ba37844696..f0d9865829f 100644
--- a/docs/CREDENTIALS.md
+++ b/docs/CREDENTIALS.md
@@ -266,7 +266,8 @@ services where they are ultimately consumed.
    three of these specific switches would set credential `foo` to `bar`.)
    Passing credentials via the SMBIOS mechanism is typically preferable over
    `fw_cfg` since it is faster and less specific to the chosen VMM
-   implementation.
+   implementation. Moreover, `fw_cfg` has a 55 character limitation
+   on names passed that way. So some settings may not fit.
 
 3. Credentials can also be passed into a system via the kernel command line,
    via the `systemd.set-credential=` kernel command line option. Note though