From patchwork Mon Feb 5 15:32:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Oleksii K." X-Patchwork-Id: 13545702 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6DC3AC4829B for ; Mon, 5 Feb 2024 15:33:02 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.676203.1052228 (Exim 4.92) (envelope-from ) id 1rX0xo-0000fF-TB; Mon, 05 Feb 2024 15:32:52 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 676203.1052228; Mon, 05 Feb 2024 15:32:52 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rX0xo-0000e6-In; Mon, 05 Feb 2024 15:32:52 +0000 Received: by outflank-mailman (input) for mailman id 676203; Mon, 05 Feb 2024 15:32:51 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rX0xn-0007I6-6m for xen-devel@lists.xenproject.org; Mon, 05 Feb 2024 15:32:51 +0000 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [2a00:1450:4864:20::133]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id d1b5319b-c43b-11ee-98f5-efadbce2ee36; Mon, 05 Feb 2024 16:32:49 +0100 (CET) Received: by mail-lf1-x133.google.com with SMTP id 2adb3069b0e04-51124d86022so7009589e87.0 for ; Mon, 05 Feb 2024 07:32:49 -0800 (PST) Received: from fedora.. ([94.75.70.14]) by smtp.gmail.com with ESMTPSA id s1-20020a056512314100b005114d401157sm474445lfi.2.2024.02.05.07.32.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 07:32:47 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: d1b5319b-c43b-11ee-98f5-efadbce2ee36 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707147168; x=1707751968; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=s6/hgd3PF/7Am9C/zD33wVCQ9jkwbx6B85pbrUoqBYs=; b=Lx6pSLZ+Eqz0S/DmldPFDmV31SHh+ri0fggp4u1dSYOIq7z/f70fcuq4iL19GDMZje T0Ikyq++3kezZ6sr69/+ZPcgnBt5tRA0MVMOIgREtgYPMebEmS5quTt38RYpUmdy60UB d9Cb7aUDotVQ9mwrvi0U8hOYHEwuDg2eSYNosfsLPsIFnkJtwROkKV7ALrs4Q5beHveC zK6eA3Niirm/MJ7EHNxmtbuC6VMtOqeLxtqoQyHlEozCuKEHhyevYbYEnk64e1P5mSO4 tFxeoZ/lSWrhfWFliUWF1GsKrdguJhWr8+S18xaFfAY71Sn+78gSF7ciWWmSahJ0Q09B fvPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707147168; x=1707751968; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=s6/hgd3PF/7Am9C/zD33wVCQ9jkwbx6B85pbrUoqBYs=; b=b0+ge5ycF75eQM2nAw3cjbIK52E/RLt/1u2cIyYbaojg73nMrPFlGMl4FBelY9S+vh cVDSrh0LbvRfRDVosJa+mm/MMJ9hwool36fY7cB7LZ8d3FeslMes//KsMENzaTFs2jg5 B+0e1EY7XDhDJc3eQ+lW0CfH2/OOKm5rdJZcPPbSgidbzBTOmf+rQ4sm+d9tvYO/DtnM hBMujfEzZkNY4TXNmjgH0jwfiNbnqr7giAY7d0bR2vRynz//y8BAcak+9DHX8FExDcvS fbHwuh6QOtMD1oVZHiMmsS7awO1wMr6PEY7iuFbXYWYSA16MXJKzHqR2NtM6iLOC7aOo 7BHQ== X-Gm-Message-State: AOJu0YyH5JvK0GFKk6RO9cLuYpvN3g4dwOcq+4terPR7uIw8W4+hW6Fk iP3VCCh8le9qx9CZgCDOXn2NO9KQmPDnW7QZqJFQtZsEr9HvlxlczB1g/C6g X-Google-Smtp-Source: AGHT+IGZlSaylwpgBTUq0NGkad9qCB2LeEIVcHnT9RLHaZQCbEdKHOXdIIfDxm07LHWW1ovQS5Y0mA== X-Received: by 2002:ac2:558b:0:b0:511:4268:3a54 with SMTP id v11-20020ac2558b000000b0051142683a54mr4092626lfg.29.1707147168101; Mon, 05 Feb 2024 07:32:48 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCXnvkWL4RaH/9B7oHf5PoxCB+1ZLi0vazkBkGHpCGWfbcELZnACjzfTr7yn7wJ5A7e3tRWl5KYe52ShsYFzlTY5k/Z18aebVItqBxW/iuzKrXX/6+fWokRe48VU9yQE3Fv+l1J91ujrTi9YqKHsDQujLWbpHwz/5l5x5nzw6yO1QMozfoWlROu948Nug46nyGhpNzXtsmLZkn2cSaj4plSbqFgRH+XzfTYWIJgCrymJDDNKqgicsO/Z4fmlRrFNIofhnvjxTE8CIlqaRdMje4GjveOzb95BLCjq2mmVYo726VbNcZmeQXOlMy8ahn3QpqohlDMoryj2VPfhqpmivG5D3qVkwtg7XcRy0TuvrJMh7jr8AApcTSChhKXoTH+Dz27kc0f/n1olOKW8GjLCe2K+5saAq+zgN7I9USsw22QXP4b1S167t8F3Z9DhY3HNNp1AV7oguXaHoKkiGPfOkL4EyNs= From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel , Volodymyr Babchuk , Andrew Cooper , George Dunlap , Jan Beulich , Wei Liu , Shawn Anastasio , Alistair Francis , Bob Eshleman , Connor Davis Subject: [PATCH v4 07/30] xen/asm-generic: introdure nospec.h Date: Mon, 5 Feb 2024 16:32:14 +0100 Message-ID: <5889d7a5fa81722472f95cc1448af0be8f359a7d.1707146506.git.oleksii.kurochko@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 The header is similar between Arm, PPC, and RISC-V, so it has been moved to asm-generic. Arm's nospec.h was taken as a base with updated guards: _ASM_ARM_NOSPEC_H -> _ASM_GENERIC_NOSPEC_H Signed-off-by: Oleksii Kurochko Acked-by: Jan Beulich --- Changes in V4: - Rebase the patch. It was conflics in asm/include/Makefile because it doesn't contain numa.h in it because of the patch: [PATCH v2] NUMA: no need for asm/numa.h when !NUMA - Properly move/rename the Arm's nospec.h with only guards update in the header from _ASM_ARM_NOSPEC_H to _ASM_GENERIC_NOSPEC_H. - Acked-by: Jan Beulich --- Changes in V3: - new patch. --- xen/arch/arm/include/asm/Makefile | 1 + xen/arch/ppc/include/asm/Makefile | 1 + xen/arch/ppc/include/asm/nospec.h | 15 --------------- xen/arch/riscv/include/asm/Makefile | 1 + .../include/asm => include/asm-generic}/nospec.h | 6 +++--- 5 files changed, 6 insertions(+), 18 deletions(-) delete mode 100644 xen/arch/ppc/include/asm/nospec.h rename xen/{arch/arm/include/asm => include/asm-generic}/nospec.h (79%) diff --git a/xen/arch/arm/include/asm/Makefile b/xen/arch/arm/include/asm/Makefile index 4a4036c951..41f73bf968 100644 --- a/xen/arch/arm/include/asm/Makefile +++ b/xen/arch/arm/include/asm/Makefile @@ -3,6 +3,7 @@ generic-y += altp2m.h generic-y += device.h generic-y += hardirq.h generic-y += iocap.h +generic-y += nospec.h generic-y += paging.h generic-y += percpu.h generic-y += random.h diff --git a/xen/arch/ppc/include/asm/Makefile b/xen/arch/ppc/include/asm/Makefile index ced02e26ed..2e8623bb10 100644 --- a/xen/arch/ppc/include/asm/Makefile +++ b/xen/arch/ppc/include/asm/Makefile @@ -5,6 +5,7 @@ generic-y += div64.h generic-y += hardirq.h generic-y += hypercall.h generic-y += iocap.h +generic-y += nospec.h generic-y += paging.h generic-y += percpu.h generic-y += random.h diff --git a/xen/arch/ppc/include/asm/nospec.h b/xen/arch/ppc/include/asm/nospec.h deleted file mode 100644 index b97322e48d..0000000000 --- a/xen/arch/ppc/include/asm/nospec.h +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* From arch/arm/include/asm/nospec.h. */ -#ifndef __ASM_PPC_NOSPEC_H__ -#define __ASM_PPC_NOSPEC_H__ - -static inline bool evaluate_nospec(bool condition) -{ - return condition; -} - -static inline void block_speculation(void) -{ -} - -#endif /* __ASM_PPC_NOSPEC_H__ */ diff --git a/xen/arch/riscv/include/asm/Makefile b/xen/arch/riscv/include/asm/Makefile index ced02e26ed..2e8623bb10 100644 --- a/xen/arch/riscv/include/asm/Makefile +++ b/xen/arch/riscv/include/asm/Makefile @@ -5,6 +5,7 @@ generic-y += div64.h generic-y += hardirq.h generic-y += hypercall.h generic-y += iocap.h +generic-y += nospec.h generic-y += paging.h generic-y += percpu.h generic-y += random.h diff --git a/xen/arch/arm/include/asm/nospec.h b/xen/include/asm-generic/nospec.h similarity index 79% rename from xen/arch/arm/include/asm/nospec.h rename to xen/include/asm-generic/nospec.h index 51c7aea4f4..65fd745db2 100644 --- a/xen/arch/arm/include/asm/nospec.h +++ b/xen/include/asm-generic/nospec.h @@ -1,8 +1,8 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. */ -#ifndef _ASM_ARM_NOSPEC_H -#define _ASM_ARM_NOSPEC_H +#ifndef _ASM_GENERIC_NOSPEC_H +#define _ASM_GENERIC_NOSPEC_H static inline bool evaluate_nospec(bool condition) { @@ -13,7 +13,7 @@ static inline void block_speculation(void) { } -#endif /* _ASM_ARM_NOSPEC_H */ +#endif /* _ASM_GENERIC_NOSPEC_H */ /* * Local variables: