From patchwork Thu Aug 22 15:10:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joey Gouly X-Patchwork-Id: 1975598 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev+bounces-367-incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4WqRXG5Wypz1yXY for ; Fri, 23 Aug 2024 01:12:46 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WqRWz0djvz2ync; Fri, 23 Aug 2024 01:12:31 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1724339551; cv=none; b=dk4wRO/bvKYxRPWlWkR3kdloS+w37IThm/KyrINVt2JbKymMiOB8kRoTwlXuYQW177jtiNFCm88wGCtVNmRRdHLRpPl2L+zyNXnpAcDMR0WIW6uDunNuk98JV9Xwpl6zRqG0AkEbHZWAQCgSnMlfqepwIhipRSF5NlRafDEv128/E+ErU1iBqmv9x361V8hH54FVRcDpBrxl++Dj9wb+794ul7rSAdoa8YpCIJkVc7EdTP76jFPSCDrD/0T7+9HRuXAdln+/dhNBljY116FY+1kJ8LDY7zXAAgW0I57Kr+8HP5HgXIaWrFqWet3akPF5/FFPV5HoGUWmaBlZyu05MQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1724339551; c=relaxed/relaxed; bh=MNrTMGsD5+rmAx8lQBjnHgQzdbxN8x//itlGnFpXYu0=; h=Received:Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; b=X+DMkA8WVxrrCq5oGfrHknMWUSn0Fz8LydzuJz1hmaJZLGnPSYMyH+0cLAglwMT420cJd6wJDy/shSpc8hg+oNiQwdYSU3tRj6qSdS03Hfz4IhZjhjFfhULdkf/0cwPq4fYEqN63LJpgH3XGvSggGVGc2dv8RmzW4ts5SfYqeErScWLshur/1kvH3lbJZJyssxgo2N+G7lkijVxmDBXuJywM9nbdoRIkoUEwrFFvA7WbWtVFlHZl/o5R/z4KvP9bXXgh8JcWhyhnqibogx7oHR24y+8NDWPVo17no5zOOBf2vF/bscfdCtPByWL3jxGAx8huODV/pU1MaE6VXAFyHA== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=joey.gouly@arm.com; receiver=lists.ozlabs.org) smtp.mailfrom=arm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=joey.gouly@arm.com; receiver=lists.ozlabs.org) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 4WqRWy5qZQz2yhn for ; Fri, 23 Aug 2024 01:12:30 +1000 (AEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EE16915A1; Thu, 22 Aug 2024 08:12:11 -0700 (PDT) Received: from e124191.cambridge.arm.com (e124191.cambridge.arm.com [10.1.197.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CF9E83F58B; Thu, 22 Aug 2024 08:11:41 -0700 (PDT) From: Joey Gouly To: linux-arm-kernel@lists.infradead.org Cc: nd@arm.com, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, bp@alien8.de, broonie@kernel.org, catalin.marinas@arm.com, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, joey.gouly@arm.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, skhan@linuxfoundation.org, szabolcs.nagy@arm.com, tglx@linutronix.de, will@kernel.org, x86@kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: [PATCH v5 05/30] arm64: cpufeature: add Permission Overlay Extension cpucap Date: Thu, 22 Aug 2024 16:10:48 +0100 Message-Id: <20240822151113.1479789-6-joey.gouly@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240822151113.1479789-1-joey.gouly@arm.com> References: <20240822151113.1479789-1-joey.gouly@arm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 This indicates if the system supports POE. This is a CPUCAP_BOOT_CPU_FEATURE as the boot CPU will enable POE if it has it, so secondary CPUs must also have this feature. Signed-off-by: Joey Gouly Cc: Catalin Marinas Cc: Will Deacon Acked-by: Catalin Marinas Reviewed-by: Anshuman Khandual --- arch/arm64/kernel/cpufeature.c | 9 +++++++++ arch/arm64/tools/cpucaps | 1 + 2 files changed, 10 insertions(+) diff --git arch/arm64/kernel/cpufeature.c arch/arm64/kernel/cpufeature.c index 646ecd3069fd..2daf5597cd65 100644 --- arch/arm64/kernel/cpufeature.c +++ arch/arm64/kernel/cpufeature.c @@ -2870,6 +2870,15 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .matches = has_nv1, ARM64_CPUID_FIELDS_NEG(ID_AA64MMFR4_EL1, E2H0, NI_NV1) }, +#ifdef CONFIG_ARM64_POE + { + .desc = "Stage-1 Permission Overlay Extension (S1POE)", + .capability = ARM64_HAS_S1POE, + .type = ARM64_CPUCAP_BOOT_CPU_FEATURE, + .matches = has_cpuid_feature, + ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, S1POE, IMP) + }, +#endif {}, }; diff --git arch/arm64/tools/cpucaps arch/arm64/tools/cpucaps index ac3429d892b9..eedb5acc21ed 100644 --- arch/arm64/tools/cpucaps +++ arch/arm64/tools/cpucaps @@ -45,6 +45,7 @@ HAS_MOPS HAS_NESTED_VIRT HAS_PAN HAS_S1PIE +HAS_S1POE HAS_RAS_EXTN HAS_RNG HAS_SB