Message ID | 20241001-arm64-gcs-v13-1-222b78d87eee@kernel.org (mailing list archive) |
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State | New |
Headers | show
Return-Path: <owner-linux-mm@kvack.org> 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 A6E14CF3189 for <linux-mm@archiver.kernel.org>; Tue, 1 Oct 2024 23:00:10 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 39F5A680030; Tue, 1 Oct 2024 19:00:10 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 329E068002B; Tue, 1 Oct 2024 19:00:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 17C16680030; Tue, 1 Oct 2024 19:00:10 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id E512868002B for <linux-mm@kvack.org>; Tue, 1 Oct 2024 19:00:09 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id A04E6405F6 for <linux-mm@kvack.org>; Tue, 1 Oct 2024 23:00:09 +0000 (UTC) X-FDA: 82626553338.17.67D13BD Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf12.hostedemail.com (Postfix) with ESMTP id 9E9B14001E for <linux-mm@kvack.org>; Tue, 1 Oct 2024 23:00:07 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=M+LrQCFI; spf=pass (imf12.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1727823568; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=RzRazP9UstyNzO+UDO8cmvWEW5pnwFooOeFK4P/V5no=; b=q335R1Jkhv2vg0aooqc8M/AzzDqoEf+JVNMsEbZt4Hugw0bT8K/DXrvjZMAOUva0Sro+/d +SY1Q+AOgtkDLhq/KpQaRq1+NlDr3QnqyioP92gLB2xOS7nDaq+9+fMUVozU5U8PfHSqGu V++ZI3+OJuM2B+za5pP3e5AwkVlfblU= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=M+LrQCFI; spf=pass (imf12.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1727823568; a=rsa-sha256; cv=none; b=ejTVsVRhFQvNMFzyBL6DNhEvCzdxY/UOprAz/zcZK70+kAIdxwe2B5ObTXiWmjsioL6e4O xnO0NoH65dxriclmYpM0UBuUBVheW4azqul6/qXXoYS+VtL0kIUUYGg6lrzasvZr7h7HaE 3LYY7aEXM2V/4YhmLfazv7bLb6Uin68= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id A516D5C045A; Tue, 1 Oct 2024 23:00:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BFD2C4CED1; Tue, 1 Oct 2024 22:59:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727823606; bh=K6nXwRRi2N2p9O+dRh8Gd4JwgstifXi9hk/l+K5hCjY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=M+LrQCFIkopMYl/E2s9vQPe6T8H19H1rdI2PzELpSbH2tZkMTJWHtSl+2EYi/ah1z 3gNvAjxtNi3aQt9efZ4PcX2fWFLMJpiHM6uEbuX2C0HVtRXPZfw9PLqQgsv/DpZwhx ko+d6ciuvCQ2Zi3pSHmuUbMhyDPPM+bDSzAeeA5DZn/uPvk6y62lYnl1c44ewkXSNh 69leE+uXUVW8w6BP9hlKmk21rT5UvHvm4x9Wtdw/GlWeev+yKsYzQPcLqMEEXGqF5o 1w9V84sUajw3M7/wnS3UK+I7TJGkE9yKVWCqZC3+iND5qOE75MQlBXH3YYnAtQBGfo T38SzvAc2yohQ== From: Mark Brown <broonie@kernel.org> Date: Tue, 01 Oct 2024 23:58:40 +0100 Subject: [PATCH v13 01/40] mm: Introduce ARCH_HAS_USER_SHADOW_STACK MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20241001-arm64-gcs-v13-1-222b78d87eee@kernel.org> References: <20241001-arm64-gcs-v13-0-222b78d87eee@kernel.org> In-Reply-To: <20241001-arm64-gcs-v13-0-222b78d87eee@kernel.org> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>, Andrew Morton <akpm@linux-foundation.org>, Marc Zyngier <maz@kernel.org>, Oliver Upton <oliver.upton@linux.dev>, James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Arnd Bergmann <arnd@arndb.de>, Oleg Nesterov <oleg@redhat.com>, Eric Biederman <ebiederm@xmission.com>, Shuah Khan <shuah@kernel.org>, "Rick P. Edgecombe" <rick.p.edgecombe@intel.com>, Deepak Gupta <debug@rivosinc.com>, Ard Biesheuvel <ardb@kernel.org>, Szabolcs Nagy <Szabolcs.Nagy@arm.com>, Kees Cook <kees@kernel.org> Cc: "H.J. Lu" <hjl.tools@gmail.com>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Florian Weimer <fweimer@redhat.com>, Christian Brauner <brauner@kernel.org>, Thiago Jung Bauermann <thiago.bauermann@linaro.org>, Ross Burton <ross.burton@arm.com>, David Spickett <david.spickett@arm.com>, Yury Khrustalev <yury.khrustalev@arm.com>, Wilco Dijkstra <wilco.dijkstra@arm.com>, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Mark Brown <broonie@kernel.org>, David Hildenbrand <david@redhat.com>, "Mike Rapoport (IBM)" <rppt@kernel.org>, Kees Cook <kees@kernel.org>, Shuah Khan <skhan@linuxfoundation.org> X-Mailer: b4 0.15-dev-99b12 X-Developer-Signature: v=1; a=openpgp-sha256; l=2413; i=broonie@kernel.org; h=from:subject:message-id; bh=K6nXwRRi2N2p9O+dRh8Gd4JwgstifXi9hk/l+K5hCjY=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBm/H7EyB0QhviIMb2LVkfpk1zMQNJtqgP10cwGbREj CBtA0z6JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZvx+xAAKCRAk1otyXVSH0Lr8B/ wNnePEP19hP37w0wQd3K+wIDCK/eEBuzpFZ7aYnELX+hjYVtc6/ns8JF6kdNukQYwFNws8ICPJiOp9 CvrEFl08K+lcDS1kc4uaRH+/kWfRTSTzicv0EplBPJT8M+3/QZyreAfUpJbOKHeRlZxVq/cJGAk+Jj /Ywx3NloAY4Yh3F9TPLeMJGiEC5fpNt7QIqwIY4AJPZEN7B1f1jMU68VoYJRLD577RcfZOX0ZKAs2o ccw9CicbZxRRybL8cEyTNUK1ukKmeTV3+s8mwttHVX+soNQu/jI1GrT00svFE2+Fk6OVpNPgCD7itC 81KlVxmfhyeTIRfwIaiO5gkLbBEjnZ X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-Rspam-User: X-Stat-Signature: j5fc8a9jr8cn8xjrc75bn83ai8ckfjke X-Rspamd-Queue-Id: 9E9B14001E X-Rspamd-Server: rspam11 X-HE-Tag: 1727823607-433057 X-HE-Meta: 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 QF4zxonO 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 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: <linux-mm.kvack.org> List-Subscribe: <mailto:majordomo@kvack.org> List-Unsubscribe: <mailto:majordomo@kvack.org> |
Series |
arm64/gcs: Provide support for GCS in userspace
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diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2852fcd82cbd..8ccae77d40f7 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1954,6 +1954,7 @@ config X86_USER_SHADOW_STACK depends on AS_WRUSS depends on X86_64 select ARCH_USES_HIGH_VMA_FLAGS + select ARCH_HAS_USER_SHADOW_STACK select X86_CET help Shadow stack protection is a hardware feature that detects function diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 72f14fd59c2d..23f875e78eae 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -971,7 +971,7 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) #ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR [ilog2(VM_UFFD_MINOR)] = "ui", #endif /* CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */ -#ifdef CONFIG_X86_USER_SHADOW_STACK +#ifdef CONFIG_ARCH_HAS_USER_SHADOW_STACK [ilog2(VM_SHADOW_STACK)] = "ss", #endif #if defined(CONFIG_64BIT) || defined(CONFIG_PPC32) diff --git a/mm/Kconfig b/mm/Kconfig index 4c9f5ea13271..4b2a1ef9a161 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -1296,6 +1296,12 @@ config NUMA_EMU into virtual nodes when booted with "numa=fake=N", where N is the number of nodes. This is only useful for debugging. +config ARCH_HAS_USER_SHADOW_STACK + bool + help + The architecture has hardware support for userspace shadow call + stacks (eg, x86 CET, arm64 GCS or RISC-V Zicfiss). + source "mm/damon/Kconfig" endmenu