From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24974C27C4F for ; Fri, 21 Jun 2024 17:04:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0203E6B0352; Fri, 21 Jun 2024 13:04:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DDB8D6B0353; Fri, 21 Jun 2024 13:04:20 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9EFCC6B0093; Fri, 21 Jun 2024 13:04:20 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 77FB38D0183 for ; Fri, 21 Jun 2024 13:04:20 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 2DC26C1126 for ; 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imf06.hostedemail.com; dkim=none; spf=pass (imf06.hostedemail.com: domain of cmarinas@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=cmarinas@kernel.org; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none) ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1718989453; a=rsa-sha256; cv=none; b=ckAWDgzevQUgngeLsYtMe9K0Xqdbw2nuVsyuMOrgJktyTL2JPKXamBVgVrro2u0PZkHux9 uOtE58elglfYBnRDlrDCLP7Fddnk6if45F8kLzN/Lq/oyLtoH4JomQt5a+no5nESNRixSa kICrNtsN13sowSwrspq1C/mzwRGKNP8= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 76F96625EE; Fri, 21 Jun 2024 17:04:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 900F7C2BBFC; Fri, 21 Jun 2024 17:04:12 +0000 (UTC) Date: Fri, 21 Jun 2024 18:04:10 +0100 From: Catalin Marinas To: Joey Gouly Cc: linux-arm-kernel@lists.infradead.org, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, bp@alien8.de, broonie@kernel.org, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, maz@kernel.org, mingo@redhat.com, mpe@ellerman.id.au, naveen.n.rao@linux.ibm.com, npiggin@gmail.com, oliver.upton@linux.dev, shuah@kernel.org, szabolcs.nagy@arm.com, tglx@linutronix.de, will@kernel.org, x86@kernel.org, kvmarm@lists.linux.dev Subject: Re: [PATCH v4 10/29] arm64: enable the Permission Overlay Extension for EL0 Message-ID: References: <20240503130147.1154804-1-joey.gouly@arm.com> <20240503130147.1154804-11-joey.gouly@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240503130147.1154804-11-joey.gouly@arm.com> X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 74FC1180021 X-Stat-Signature: mrp7pwbhsh584yz3gz6bfjpxg6bpbd9c X-HE-Tag: 1718989458-598595 X-HE-Meta: U2FsdGVkX1/WlSHKHPOeHeQaH9Nsyg4powMIEuy1DaK/A7ybTaAqk8WydwPb9FHx4UnUxwyJqYNBa6cWUJNR1oi0UFlGyFd4+Oz/5dzvgnLC/80Z0kuiEoJXED0ZfNqWQMs20b0jc20eKGRSW4Az/DYMnWzmykGO2BY/9A3Ml2YUIpso2L6kxVDKHpkhBAR9p1xpDpT10bV1tF8Rc8+833sVbGtqHVoNl2dhcPKmeJftfeansKuWgFz7UM2E9WCQJZZ8vfeOdZT/u0WmlQYu3Z+QsiOkaLLSLtf5uVA/hFpPuusLILY0HOTBMznJDFrz1+mwD5GP4uk/q8uL635AbPqb03vZLMHye4Th2K+l85TYS9Q37Um8l75nUkMFDHFcuHe6jRWxhaTr32Gxdp1D8RMllmz8ahRlMXVSRpuJ7znQc7hLg7dtuq6w5iL+I2xRv/9X0NwizA4AFnqxSkyJpJl9hcBS+jbtR7iHNQFsn7t98Sg8ZVBhlmLxCYnTjkRXQMsx0+Z+zVV9BOTZvyPeaegLu0Z4uAzaUvsxFoKc5FABSxBmqvNokEypsfqCV+/vhAY4VFMdkKgPPvKln/iQsg80SPpREQNa86e+rycPRhsnZnEXPENAhTcnLaNcUKYEfkna+eGZIDD6r7v2rIywaWka2s0IpzyIlSHaLQF6XIhASwkI0qlW/73OYwDu36Wpe87o3AA3TOhjmGggD8As85al3teSn7qECUDq6DlNpGLWF5V/3OKEAMx38lB+ZK8pKeL8/Z9dT5V0FTVQoj0EC4qzl7hxg/6OQSi4aQT72FaAXvMpu2nqCbtx589yM4b5BYP1RiQjGzIGrM2xSDdCYbgpyFRLx3CJwQs6Ez4LUm9jp8A7jEdqUzIzIsWYYNfz83JomAziLYLU/Vbl8PVr88wa8Z87OJnz/FvSHKSpRCJDXqE8uzGlLlKxKPAHoD0pwmR0Qi9mugnc4yOHK6B SrWtIdA9 36Jc3zwVQjy2XmIWzU46DohSZP04EBZPLmeDyAVGHGJkfj1VwbKr+ZtgZj0VOZEtFeno6bGQJThKnjwr8bMUCVCijWdIM7zFPvvGhQ2ZDti2ao8FASO2CTjpbdYBfX1ls123C1sRC5bjLdT1rWFTsRNwajnCRD3kk5zANjax4/RwTdM7StQ0mX3g7W+3PqDjDDRQr3Yk2f7m2fIJVvPDF8Fl+1oTUtny9Rd31hjvpC/G2avLAYryMVb/EV4J7PehSjju+CTbKZddobeKjhTBmezFO3YuEs64SHoMKCIvhczSP5VWJWZByPLRuRPYGsg0y8N1zEsqRV7jXkJ5Y0qVTbDzA/MLq1gxdiaNhRqE9+73HS3BSkgDss3/OsjGd5/kFuoExv9Vwd/NuA1NbcbGbq48ByBcJATKHb+VO83XTOIZUvPZzmyrGzbhMHT7FBMWqVmSy8T7WuWAPB3VNyWbj7tWQjg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 Fri, May 03, 2024 at 02:01:28PM +0100, Joey Gouly wrote: > Expose a HWCAP and ID_AA64MMFR3_EL1_S1POE to userspace, so they can be used to > check if the CPU supports the feature. > > Signed-off-by: Joey Gouly > Cc: Catalin Marinas > Cc: Will Deacon Reviewed-by: Catalin Marinas