From patchwork Wed Aug 16 10:19:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksii Kurochko X-Patchwork-Id: 13354853 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 2AD4AC001E0 for ; Wed, 16 Aug 2023 10:20:44 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.584335.915015 (Exim 4.92) (envelope-from ) id 1qWDdh-0007Fz-KM; Wed, 16 Aug 2023 10:20:33 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 584335.915015; Wed, 16 Aug 2023 10:20:33 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qWDdg-00077n-UF; Wed, 16 Aug 2023 10:20:32 +0000 Received: by outflank-mailman (input) for mailman id 584335; Wed, 16 Aug 2023 10:20:30 +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 1qWDdd-0003RA-RY for xen-devel@lists.xenproject.org; Wed, 16 Aug 2023 10:20:29 +0000 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [2a00:1450:4864:20::435]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 85495f00-3c1e-11ee-9b0c-b553b5be7939; Wed, 16 Aug 2023 12:20:27 +0200 (CEST) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-318015ade49so5634143f8f.0 for ; Wed, 16 Aug 2023 03:20:28 -0700 (PDT) Received: from 192.168.1.26 ([151.25.98.127]) by smtp.gmail.com with ESMTPSA id g5-20020adfe405000000b0031773a8e5c4sm20877843wrm.37.2023.08.16.03.20.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 03:20:26 -0700 (PDT) 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: 85495f00-3c1e-11ee-9b0c-b553b5be7939 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1692181227; x=1692786027; 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=PRRBWp83boHb+zw6sm5d52jnQMLItidtewKC9LBmK0s=; b=acbGmCNgJ9BfzSje08D/GyvOXnkTZ6MKs8jLJ8CUZfNBanJDjBeMOUN5BIN7jFX+gI ICGv0cUDyLiXWAt5826PFLvpo7RAeuVPKJV7DjPgzUw3xSf2DHJSqB0wVRH1tveuO4UB 1gsgQQMkOgnYRRFWXJskJseLRo/1J6hBBIpoXC0/T0PXLSaiAlQGtda2ybmcv+AxYQya QroNKhvDXogArrwwrl8VSQBLz/iWHqBvmssEkR32Yo01sIBg28mt28K5fdY66kDCwpWc L3pVrgS/PafOSgR+ukXy9wHzkI6WdGMJTAysgwwtO6HzvEuKsFGsQdGaVaS1lYnoJk0K 9YCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692181227; x=1692786027; 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=PRRBWp83boHb+zw6sm5d52jnQMLItidtewKC9LBmK0s=; b=UGkC+L8I8LKn8zQGJfzTMFYUVonJ7mKd98J3+uNPHW4/4zinzorooNwC0UFybHpnqQ l/e0ME3hJ3pWntyKYbaHpyr4q9sYfQYy2+BxzPwmwZfAaYwgs4hMsTGMCqV5Jfm9yTZv y2sNprrJZJ+Rrhfmc8QrgOHxChQWZeSA8bP/PZy2XYMOIDnp5Y0ycpT4zx9vjiBXCESP UEjdB5wEE3jsfnUDIKyjE9XkmQVZ+pVC9FsTlP0BO/5qT45VmwsiNG/HJOCAEUgHuc0X HtI7N5SAqdL376fi+Lf6Nnr0rIw/UvjTshNrDThB+rT2VZR0g49O0suQpHZ34C0p7sO4 c2GA== X-Gm-Message-State: AOJu0YzRdSg8nKuaJ7z23F2kVdT+a8UDjmDardqtdfI5ghYyJ6+wnAnF JOP9LgS8J7TBiV3yYZzsY2JMenbfwmiQuXm7 X-Google-Smtp-Source: AGHT+IFBPfRX+VhcbMwYOZ7HBeoHmuo12zcgNhpbd6Un+nAGIc1pXN2RRVMVOJjiGbz+QSxC8otRAA== X-Received: by 2002:a5d:474a:0:b0:319:7c7d:8c1 with SMTP id o10-20020a5d474a000000b003197c7d08c1mr1274785wrs.18.1692181227193; Wed, 16 Aug 2023 03:20:27 -0700 (PDT) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Bob Eshleman , Alistair Francis , Connor Davis Subject: [PATCH v1 16/57] xen/riscv: introduce asm/nospec.h Date: Wed, 16 Aug 2023 13:19:26 +0300 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/include/asm/nospec.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 xen/arch/riscv/include/asm/nospec.h diff --git a/xen/arch/riscv/include/asm/nospec.h b/xen/arch/riscv/include/asm/nospec.h new file mode 100644 index 0000000000..55087fa831 --- /dev/null +++ b/xen/arch/riscv/include/asm/nospec.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. */ + +#ifndef _ASM_RISCV_NOSPEC_H +#define _ASM_RISCV_NOSPEC_H + +static inline bool evaluate_nospec(bool condition) +{ + return condition; +} + +static inline void block_speculation(void) +{ +} + +#endif /* _ASM_RISCV_NOSPEC_H */ + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */