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Sat, 02 May 2020 11:22:52 +0000 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 042BMoOa25755958 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 2 May 2020 11:22:50 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CA8257805C; Sat, 2 May 2020 11:22:50 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 635D87805E; Sat, 2 May 2020 11:22:48 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.199.52.206]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Sat, 2 May 2020 11:22:48 +0000 (GMT) From: "Aneesh Kumar K.V" To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au Subject: [PATCH v2 02/28] powerpc/book3s64/kuep: Add MMU_FTR_KUEP Date: Sat, 2 May 2020 16:52:03 +0530 Message-Id: <20200502112229.545331-3-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200502112229.545331-1-aneesh.kumar@linux.ibm.com> References: <20200502112229.545331-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-05-02_06:2020-05-01, 2020-05-02 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 adultscore=0 priorityscore=1501 malwarescore=0 phishscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005020095 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Aneesh Kumar K.V" , linuxram@us.ibm.com, bauerman@linux.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This will be used to enable/disable Kernel Userspace Execution Prevention (KUEP). Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/mmu.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 0e5d7ed9fcd6..b26af5aac5a6 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -24,6 +24,7 @@ /* Radix page table supported and enabled */ #define MMU_FTR_TYPE_RADIX ASM_CONST(0x00000040) #define MMU_FTR_PKEY ASM_CONST(0x00000080) +#define MMU_FTR_KUEP ASM_CONST(0x00000100) /* * Individual features below. @@ -180,6 +181,10 @@ enum { #ifdef CONFIG_PPC_MEM_KEYS MMU_FTR_PKEY | #endif +#ifdef CONFIG_PPC_KUEP + MMU_FTR_KUEP | +#endif /* CONFIG_PPC_KUAP */ + 0, }; -- 2.26.2