linux-hardening - [PATCH] mseal sysmap: update supported architectures

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Message-ID: <20250317131917.1332402-1-hca@linux.ibm.com>
Date: Mon, 17 Mar 2025 14:19:17 +0100
From: Heiko Carstens <hca@...ux.ibm.com>
To: Andrew Morton <akpm@...ux-foundation.org>, Jeff Xu <jeffxu@...omium.org>,
        Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Kees Cook <kees@...nel.org>
Cc: Alexander Gordeev <agordeev@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-hardening@...r.kernel.org
Subject: [PATCH] mseal sysmap: update supported architectures

Add s390 to the list of architectures which support mseal sysmap.

Signed-off-by: Heiko Carstens <hca@...ux.ibm.com>
---
    Andrew, please feel free to merge this with "mseal sysmap: enable s390".

 Documentation/userspace-api/mseal.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/userspace-api/mseal.rst b/Documentation/userspace-api/mseal.rst
index 56aee46a9307..1dabfc29be0d 100644
--- a/Documentation/userspace-api/mseal.rst
+++ b/Documentation/userspace-api/mseal.rst
@@ -143,7 +143,8 @@ Use cases
   the CONFIG_MSEAL_SYSTEM_MAPPINGS seals all system mappings of this
   architecture.
 
-  The following architectures currently support this feature: x86-64 and arm64.
+  The following architectures currently support this feature: x86-64, arm64,
+  and s390.
 
   WARNING: This feature breaks programs which rely on relocating
   or unmapping system mappings. Known broken software at the time
-- 
2.45.2