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Sun, 15 Jan 2023 15:02:18 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1604F20040; Sun, 15 Jan 2023 15:02:18 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1CBB62004B; Sun, 15 Jan 2023 15:02:15 +0000 (GMT) Received: from sjain014.ibmuc.com (unknown [9.43.71.156]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Sun, 15 Jan 2023 15:02:14 +0000 (GMT) From: Sourabh Jain To: linuxppc-dev@ozlabs.org, mpe@ellerman.id.au Subject: [PATCH v7 2/8] powerpc/crash hp: introduce a new config option CRASH_HOTPLUG Date: Sun, 15 Jan 2023 20:32:00 +0530 Message-Id: <20230115150206.431528-3-sourabhjain@linux.ibm.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230115150206.431528-1-sourabhjain@linux.ibm.com> References: <20230115150206.431528-1-sourabhjain@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: zmd5Gzrv5l-2szG-pB8auxfFRS8f5pCa X-Proofpoint-GUID: JbF89hEym_y-0TN0WtS4VN2mdPeF1C6X X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.923,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-15_09,2023-01-13_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 malwarescore=0 mlxscore=0 spamscore=0 lowpriorityscore=0 mlxlogscore=999 impostorscore=0 suspectscore=0 adultscore=0 bulkscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301150116 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230115_070227_185722_20834375 X-CRM114-Status: GOOD ( 15.68 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: eric.devolder@oracle.com, bhe@redhat.com, kexec@lists.infradead.org, ldufour@linux.ibm.com, hbathini@linux.ibm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org The config option CRASH_HOTPLUG enables in kernel update to kexec segments due to CPU/Memory hotplug events. By default it is disabled. Signed-off-by: Sourabh Jain --- arch/powerpc/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index b8c4ac56bddc5..57d18cc5d27c5 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -668,6 +668,18 @@ config CRASH_DUMP The same kernel binary can be used as production kernel and dump capture kernel. +config CRASH_HOTPLUG + bool "Update crash capture system on CPU/Memory hotplug event" + default n + depends on CRASH_DUMP && (HOTPLUG_CPU || MEMORY_HOTPLUG) + help + In kernel update to relevant kexec segments due to change + in system configuration, rather reloading all the kexec + segments again from userspace by monitoring CPU/Memory + hotplug event in userspace using udev. + + If unsure, say Y. + config FA_DUMP bool "Firmware-assisted dump" depends on PPC64 && (PPC_RTAS || PPC_POWERNV) -- 2.39.0 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec