Message ID | 20221102224528.639894-1-rmclure@linux.ibm.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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(haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id DB93360100; Thu, 3 Nov 2022 09:46:00 +1100 (AEDT) From: Rohan McLure <rmclure@linux.ibm.com> To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 1/4] powerpc/64: Add INTERRUPT_SANITIZE_REGISTERS Kconfig Date: Thu, 3 Nov 2022 09:45:25 +1100 Message-Id: <20221102224528.639894-1-rmclure@linux.ibm.com> X-Mailer: git-send-email 2.34.1 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: -XmOwKMFKz1NWTHxMPPlCPMSYAtTymCh X-Proofpoint-GUID: Zj8VZm9N9fwV0m9cNGpopIfGEZXPf3d2 Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-02_15,2022-11-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 adultscore=0 spamscore=0 mlxlogscore=507 phishscore=0 clxscore=1015 impostorscore=0 malwarescore=0 priorityscore=1501 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211020149 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: Rohan McLure <rmclure@linux.ibm.com>, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
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[1/4] powerpc/64: Add INTERRUPT_SANITIZE_REGISTERS Kconfig
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diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2ca5418457ed..9d3d20c6f365 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -529,6 +529,15 @@ config HOTPLUG_CPU Say N if you are unsure. +config INTERRUPT_SANITIZE_REGISTERS + bool "Clear gprs on interrupt arrival" + depends on PPC64 && ARCH_HAS_SYSCALL_WRAPPER + default PPC_BOOK3E_64 + help + Reduce the influence of user register state on interrupt handlers and + syscalls through clearing user state from registers before handling + the exception. + config PPC_QUEUED_SPINLOCKS bool "Queued spinlocks" if EXPERT depends on SMP