From: Heiko Carstens <hca@linux.ibm.com>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Jeff Xu" <jeffxu@chromium.org>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
"Kees Cook" <kees@kernel.org>,
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
"Sven Schnelle" <svens@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH mm-unstable 0/2] mseal system mappings fix + s390 enablement
Date: Tue, 11 Mar 2025 14:37:36 +0100 [thread overview]
Message-ID: <20250311133736.12846D42-hca@linux.ibm.com> (raw)
In-Reply-To: <a326735d-ca3e-4aee-9f98-4e742dfc15f5@lucifer.local>
On Tue, Mar 11, 2025 at 01:02:47PM +0000, Lorenzo Stoakes wrote:
> On Tue, Mar 11, 2025 at 01:33:24PM +0100, Heiko Carstens wrote:
> > When rebasing the mseal series on top of the generic vdso data storage
> > the VM_SEALED_SYSMAP vm flag for the vvar mapping got lost. Add that again.
>
> I'm confused by this? Some merge patch resolution thing?
See my other mail.
> > Also add s390 support for MSEAL_SYSTEM_MAPPINGS.
>
> 'Also' = the whole thing this series does?
>
> Can you confirm that s390 absolutely does not rely upon
> moving/manipulating/etc. the VDSO, VVAR, etc. mappings?
>
> You should say that here.
Just like for arm64, and x86_64 the s390 part is just adding the new
vm flag to the _install_mappings() call in vdso code. Otherwise there
is nothing to be considered.
next prev parent reply other threads:[~2025-03-11 13:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-11 12:33 [PATCH mm-unstable 0/2] mseal system mappings fix + s390 enablement Heiko Carstens
2025-03-11 12:33 ` [PATCH mm-unstable 1/2] mseal sysmap: generic vdso vvar mapping Heiko Carstens
2025-03-11 12:59 ` Thomas Weißschuh
2025-03-11 13:32 ` Heiko Carstens
2025-03-11 14:36 ` Lorenzo Stoakes
2025-03-11 21:54 ` Jeff Xu
2025-03-11 12:33 ` [PATCH mm-unstable 2/2] mseal sysmap: enable s390 Heiko Carstens
2025-03-11 14:37 ` Lorenzo Stoakes
2025-03-11 21:55 ` Jeff Xu
2025-03-11 22:12 ` Jeff Xu
2025-03-12 15:39 ` Heiko Carstens
2025-03-12 23:53 ` Jeff Xu
2025-03-11 13:02 ` [PATCH mm-unstable 0/2] mseal system mappings fix + s390 enablement Lorenzo Stoakes
2025-03-11 13:37 ` Heiko Carstens [this message]
2025-03-11 13:42 ` Lorenzo Stoakes
2025-03-11 14:06 ` Heiko Carstens
2025-03-11 14:09 ` Lorenzo Stoakes
2025-03-11 14:21 ` Heiko Carstens
2025-03-11 14:30 ` Lorenzo Stoakes
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