From patchwork Thu Aug 22 15:10:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joey Gouly X-Patchwork-Id: 1975594 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-363-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 4WqRWg0z8Vz1yXY for ; Fri, 23 Aug 2024 01:12:15 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WqRWS1qLSz2yhv; Fri, 23 Aug 2024 01:12:04 +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=1724339524; cv=none; b=Ts36rp9+r+Q8N8gw3rwlB8+a/3mst5wHafeTmDYCLSoNMI1iak2ig2RqgB8XG9h0TunBLn9Xb3bb2Z9mu65CNl07Zs6OZEhWWgregaZn2r2b9yKsOe1In7UzZ/TpkK0SAJuOZA39ZASS9AKjnvqMyMqZNFHylyH9f7yCcDu8/sVpS5DiUqh3W2kllfMbbWpz9xCw21CekBJ8cKytvbCPuk2eq3cl/F3OqLwYrl3KPa+SvCa0mCg3c1UH9RFSEMmLORB20A7gM+ggxFMGHDrAA4JKcp8hr1Dtpu9Rutp0tKUfPTwiXgd1e6E6hrRYcrgO8i8CeWswocLkdHycjQbRzw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1724339524; c=relaxed/relaxed; bh=g7IaXVZdBs5xv39RK9QztWdWeQqbVpdYum+vkYswvwk=; h=Received:Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; b=E5wKXJnEMPc+ZwCd+12n4bzyBXRNUCV07uXvdCQ6Qer5zzhIuN1ShsgA9Z3DtSYoOzz7eKiOfHC1BSdeq6oQssNodCa7XorYJvJbqy9XfhIKMbRJJMHhVFi6T19iJFcgkFmjSwjklXltexsQIUaO6rVXwAZ35pg00YRX6h3rIs4Ir7fPbKZEs3zuIIks54suWeOv/9ScrFy/c5IoWlRR2zgfC7C3si5zv5oGftUY8qOMK89HWT4Iu4oBw70xLpj3QcHjqAxo7dhAwDjj+pb/H9Q7Yrs4S/OhASNIAF22j9JemcpbSARqbL/Yc59oEFDckuic/NfdAN2/Dknxe5onyw== 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 4WqRWS0HTPz2yhG for ; Fri, 23 Aug 2024 01:12:03 +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 037931576; Thu, 22 Aug 2024 08:11:59 -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 D92D73F58B; Thu, 22 Aug 2024 08:11:28 -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 02/30] x86/mm: add ARCH_PKEY_BITS to Kconfig Date: Thu, 22 Aug 2024 16:10:45 +0100 Message-Id: <20240822151113.1479789-3-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 The new config option specifies how many bits are in each PKEY. Signed-off-by: Joey Gouly Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: x86@kernel.org Acked-by: Dave Hansen --- arch/x86/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git arch/x86/Kconfig arch/x86/Kconfig index 007bab9f2a0e..683c0a64efe2 100644 --- arch/x86/Kconfig +++ arch/x86/Kconfig @@ -1889,6 +1889,10 @@ config X86_INTEL_MEMORY_PROTECTION_KEYS If unsure, say y. +config ARCH_PKEY_BITS + int + default 4 + choice prompt "TSX enable mode" depends on CPU_SUP_INTEL