We removed support for 32-bit PPC hosts in commit 5c1ec5a1ee0
("tcg/ppc: Remove support for 32-bit hosts").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 docs/about/removed-features.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst
index a72df26dd24..e4eb3da4c22 100644
--- a/docs/about/removed-features.rst
+++ b/docs/about/removed-features.rst
@@ -902,6 +902,12 @@ From 10.0, QEMU has disabled configuration of 64-bit guests on 32-bit hosts.
 Debian 12 "Bookworm" removed support for 32-bit MIPS, making it hard to
 maintain our cross-compilation CI tests of the architecture.
 
+32-bit PPC (since 10.2)
+'''''''''''''''''''''''
+
+Keeping 32-bit host support alive is a substantial burden for the
+QEMU project.
+
 Guest Emulator ISAs
 -------------------
 
-- 
2.51.0