linux-kernel - Re: [PATCH] mseal sysmap: add arch-support txt

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Message-ID: <20250317132219.21754Dd0-hca@linux.ibm.com>
Date: Mon, 17 Mar 2025 14:22:19 +0100
From: Heiko Carstens <hca@...ux.ibm.com>
To: Jeff Xu <jeffxu@...omium.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, akpm@...ux-foundation.org,
        Liam.Howlett@...cle.com, agordeev@...ux.ibm.com,
        borntraeger@...ux.ibm.com, gor@...ux.ibm.com, kees@...nel.org,
        linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, svens@...ux.ibm.com,
        thomas.weissschuh@...utronix.de
Subject: Re: [PATCH] mseal sysmap: add arch-support txt

On Thu, Mar 13, 2025 at 03:25:46PM -0700, Jeff Xu wrote:
> > > diff --git a/Documentation/features/core/mseal_sys_mappings/arch-support.txt b/Documentation/features/core/mseal_sys_mappings/arch-support.txt
> > > new file mode 100644
> > > index 000000000000..8db637254de9
> > > --- /dev/null
> > > +++ b/Documentation/features/core/mseal_sys_mappings/arch-support.txt
> > > @@ -0,0 +1,30 @@
> > > +#
> > > +# Feature name:          mseal-system-mappings
> > > +#         Kconfig:       ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS
> > > +#         description:   arch supports mseal system mappings
> > > +#
...
> > I mean fine, but why not in the existing mseal documentation file where you
> > already document system mappings?
> >
> you mean adding s390 in the mseal.rst ? I thought Heiko was going to
> add that ? [1], maybe not ?
> 
> From the example given by Heiko [1] , arch-support.txt is the official
> way of documenting arch specific support. But adding these info in
> mseal.rst won't hurt.
> 
> > Anyway yeah, let's move that over there please.
> 
> I'm looking at Heiko's direction first to see if mseal.rst will be
> updated as part of the s390 patch, technically that belongs to Heiko's
> patch series. I can also add that if Heiko doesn't care :-)

Just sent a patch which does that. Sorry for the delay - I was offline
for a couple of days.