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Tue, 11 Mar 2025 13:33:00 +0000 (GMT) Date: Tue, 11 Mar 2025 14:32:58 +0100 From: Heiko Carstens To: Thomas =?iso-8859-1?Q?Wei=DFschuh?= Cc: Andrew Morton , Jeff Xu , Lorenzo Stoakes , "Liam R . Howlett" , Kees Cook , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH mm-unstable 1/2] mseal sysmap: generic vdso vvar mapping Message-ID: <20250311133258.12846C3b-hca@linux.ibm.com> References: <20250311123326.2686682-1-hca@linux.ibm.com> <20250311123326.2686682-2-hca@linux.ibm.com> <20250311135542-574f3a8a-525f-4e84-9f04-c9d1ded0deef@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250311135542-574f3a8a-525f-4e84-9f04-c9d1ded0deef@linutronix.de> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: SmyYxSi9cZdoEJKUXlm4nWhXpj0cG8wx X-Proofpoint-ORIG-GUID: SmyYxSi9cZdoEJKUXlm4nWhXpj0cG8wx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-11_03,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 clxscore=1015 mlxlogscore=470 suspectscore=0 spamscore=0 impostorscore=0 bulkscore=0 phishscore=0 malwarescore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502100000 definitions=main-2503110086 X-Rspam-User: X-Rspamd-Queue-Id: AA29418001D X-Stat-Signature: dhz7n1itbnabgdbofet6c5sag4cxqunm X-Rspamd-Server: rspam09 X-HE-Tag: 1741700139-3256 X-HE-Meta: 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 U2mzSU0u hoACX001p3WrFU3MrMqRA/GOhUFPVG2DUoJy3gjf/3mgaKxvdMA7kxW3z0ny/JVTLLlRsHDrWQTHW1tfBAMMk6fGB//Rog+O6lYoIRoL2GCW0FNJuhkKpmek4efUHB2FNmix5IWscJy0h0PFEjW9//zPkqPE6j+1IrCh27eEZkYtOyedrtVdD1sCClmDjL+4oozauqWH4pmVfTfPE0LNvsnDcFzuq55lKxZI7VrJGHTai2Fjt9rJo+OVJonyFEASYRpZs6w5jFf61cQxqwoN4V7OmatRdiARNbxkc1m6IMVzv/KMDCchOwfkJQpd7+w5Eshyp01Q9dN6bHo8EqcHGq7bM2u83NzgwE7FiuFxpip3eXaO7i2FYYmm5Q5epzpagbj3toZUcGqc6ewiDxTvBbfC3368ibo+wbEP+8QNBg031J94BuL3yQQ1PHUAit4Am4nu28yyBfpFsTSReI1P3ybgxapaDvEc7Bb0W X-Bogosity: Ham, tests=bogofilter, spamicity=0.009158, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Mar 11, 2025 at 01:59:21PM +0100, Thomas Weißschuh wrote: > Hi Heiko, > > On Tue, Mar 11, 2025 at 01:33:25PM +0100, Heiko Carstens wrote: > > With the introduction of the generic vdso data storage the VM_SEALED_SYSMAP > > vm flag must be moved from the architecture specific > > _install_special_mapping() call [1] [2] which maps the vvar mapping to > > generic code. > > I think this change should be part of the merge commit between the > trees carrying the generic vdso data storage and mseal for system mappings. > > https://lore.kernel.org/lkml/20250307151426.5f3c0c39@canb.auug.org.au/ > https://lore.kernel.org/lkml/20250311150847.5a63db36@canb.auug.org.au/ Yes, but Andrew added your patches into his tree and on top of that the mseal patches: https://lore.kernel.org/all/20250306235802.ff0f406acd0117bcfe927082@linux-foundation.org/ https://web.git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/log/?h=mm-unstable When doing that the vvar bits got lost. I don't know what Andrew's plans for the merge window are, but right now there is no merge commit which could be fixed.