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Tue, 23 Jul 2024 13:18:24 +0000 (GMT) Received: from osiris (unknown [9.152.212.60]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTPS; Tue, 23 Jul 2024 13:18:24 +0000 (GMT) Date: Tue, 23 Jul 2024 15:18:23 +0200 From: Heiko Carstens To: Ilya Leoshkevich Cc: Vasily Gorbik , Alexander Gordeev , linux-s390@vger.kernel.org Subject: Re: [PATCH 2/2] s390/ptdump: Add KMSAN page markers Message-ID: <20240723131823.6750-B-hca@linux.ibm.com> References: <20240723124441.120044-1-iii@linux.ibm.com> <20240723124441.120044-3-iii@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240723124441.120044-3-iii@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: aFL74rGGr0254VXz3oc6mmW0A2E35D6V X-Proofpoint-ORIG-GUID: aFL74rGGr0254VXz3oc6mmW0A2E35D6V X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-23_02,2024-07-23_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxscore=0 phishscore=0 adultscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 mlxlogscore=592 lowpriorityscore=0 impostorscore=0 spamscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2407230092 On Tue, Jul 23, 2024 at 02:44:12PM +0200, Ilya Leoshkevich wrote: > Add KMSAN vmalloc metadata areas to > /sys/kernel/debug/kernel_page_tables. Example output: > > 0x000003a95fff9000-0x000003a960000000 28K PTE I > ---[ vmalloc Area End ]--- > ---[ Kmsan vmalloc Shadow Start ]--- > 0x000003a960000000-0x000003a960010000 64K PTE RW NX > [...] > 0x000003d3dfff9000-0x000003d3e0000000 28K PTE I > ---[ Kmsan vmalloc Shadow End ]--- > ---[ Kmsan vmalloc Origins Start ]--- > 0x000003d3e0000000-0x000003d3e0010000 64K PTE RW NX > [...] > 0x000003fe5fff9000-0x000003fe60000000 28K PTE I > ---[ Kmsan vmalloc Origins End ]--- > ---[ Kmsan Modules Shadow Start ]--- > 0x000003fe60000000-0x000003fe60001000 4K PTE RW NX > [...] > 0x000003fe60100000-0x000003fee0000000 2047M PMD I > ---[ Kmsan Modules Shadow End ]--- > ---[ Kmsan Modules Origins Start ]--- > 0x000003fee0000000-0x000003fee0001000 4K PTE RW NX > [...] > 0x000003fee0100000-0x000003ff60000000 2047M PMD I > ---[ Kmsan Modules Origins End ]--- > ---[ Modules Area Start ]--- > 0x000003ff60000000-0x000003ff60001000 4K PTE RO X > > Signed-off-by: Ilya Leoshkevich > --- > arch/s390/mm/dump_pagetables.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) Reviewed-by: Heiko Carstens