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: 821486 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 686F71CC16F; Thu, 22 Aug 2024 15:11:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724339495; cv=none; b=uZwceQWrS7lxVHE00wx4te3ojMsgIetHAddiwavkQVbtUAzrzEjyJgvlOqwam56z+5o0/8ihYrziDfjKG24cDnCc9Q19NhzAdJgbMzAT646T3hnOx0+8uhfpxCK6tXe5YvHBNa6gFP83A/YMmh4QkvUysl5Wmt4qUWKoklEgz1A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724339495; c=relaxed/simple; bh=OgOF4aP3d/eoPRqHdpUelEtCRZwNWw2rYjXXBRVelPE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nemX4pohaLawQ90cR74nUXBb0AqFvAY3aWyveGMuGotyhXSmhjmGcb1HgGZHpflT27eCDmANbQiUMs7MlXZGkXHo4iJBjrB39X53sqwpHVVCPA8+RPAEJ4lR84YfDzWRqxT7ib6s8lpet4BkpkHqx982xZ8zIXWMkPSAYs+ER6w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: 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