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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33F79C63797 for ; Fri, 3 Feb 2023 07:27:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232166AbjBCH10 (ORCPT ); Fri, 3 Feb 2023 02:27:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229914AbjBCH1Y (ORCPT ); Fri, 3 Feb 2023 02:27:24 -0500 Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D76428B7E8; Thu, 2 Feb 2023 23:27:23 -0800 (PST) Received: by mail-pl1-x632.google.com with SMTP id v23so4445188plo.1; Thu, 02 Feb 2023 23:27:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to:subject :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=edbX+4MC5b+srO3yHczbdBgc/tPpYqJoWHt3T7lC7SQ=; b=HODstuc15O4Z0/BygJiX8SkZj/gjCfhMLuhWURz3K3rxDS9NSpxIsbeMFDmDRlkO4M hCA1vFikS/q/wG85vjfTDuu0ORRobX3/dUT9YNV3W6y1fLjq+AhjnSj98CFbh1ukLrO9 WmxO9SqjL60RJpawsuQ/S143ohX8EHmjtf8MyerGuf661DLLntV8/okXyYQGYATmbqek lejYMupeIh03gTm+fAmVhTvrlIrJp+CUylRVbBqE2dnZXDpB38yOzlWIaRgQaXXNXxEB 7YanMNO0NHfMFNV6+KN+rsynWieyj//2RjeLFh9HQZxrqlWIZ6Hpr0cVBG3u8wsZEBkn 0Z/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to:subject :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=edbX+4MC5b+srO3yHczbdBgc/tPpYqJoWHt3T7lC7SQ=; b=EZnE+PSEZLKTADq/bnPKxckyehjgUczt/zHIjKjoEy5EwfQXpPkR8zI4qhybor5p5b 0upMB8ksaPm41XW2ENuvGzVT1Ov9S5+jlNxg1xgRuWxcACCmj2WdH+FWGN9oC/htf8O/ F2j/Yb9VHcSRECg4XakBZf2XZgK/l9RMSJ2FjwxmQnLObG2/KuGVO4VUrlwDrOwQpkgS Cn9V4EhiAxGV8AI+0jDj3uWKE5fSrwrdQN8Uu+wDrgvkwUCFs62E9QNOzAW+FUKw5256 Y3GUvYzfIFisAdEJh8h3o8M5lq/2r7SzqJQj+GRbgKw2alyMl2tloZpYrowJ3Lc1+4Gs fHQQ== X-Gm-Message-State: AO0yUKVBPbtoqqyH1Nk4MSkK953AUhDyKxJxmVXBXpV53JLmqRy2XPet G1xcVPr/KzacshB/ZnbNRek= X-Google-Smtp-Source: AK7set+JpyrjPDWAG8FnISsyg+KVKKeXx4q66CNamTLJ/nmBURaNsWGgQaBsYZmyUs6gfsmYobxPjw== X-Received: by 2002:a17:902:d0d3:b0:194:a1f6:65ae with SMTP id n19-20020a170902d0d300b00194a1f665aemr7156793pln.12.1675409243410; Thu, 02 Feb 2023 23:27:23 -0800 (PST) Received: from ?IPV6:2404:f801:0:5:8000::75b? ([2404:f801:9000:18:efec::75b]) by smtp.gmail.com with ESMTPSA id v24-20020a17090331d800b00198e40d95d1sm360350ple.47.2023.02.02.23.27.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 02 Feb 2023 23:27:22 -0800 (PST) Message-ID: <7dbc845a-0ada-f97a-ba50-a6b2c31ee9c0@gmail.com> Date: Fri, 3 Feb 2023 15:27:11 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [RFC PATCH V3 12/16] x86/sev: Add a #HV exception handler To: "Gupta, Pankaj" , luto@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com, jgross@suse.com, tiala@microsoft.com, kirill@shutemov.name, jiangshan.ljs@antgroup.com, peterz@infradead.org, ashish.kalra@amd.com, srutherford@google.com, akpm@linux-foundation.org, anshuman.khandual@arm.com, pawan.kumar.gupta@linux.intel.com, adrian.hunter@intel.com, daniel.sneddon@linux.intel.com, alexander.shishkin@linux.intel.com, sandipan.das@amd.com, ray.huang@amd.com, brijesh.singh@amd.com, michael.roth@amd.com, thomas.lendacky@amd.com, venu.busireddy@oracle.com, sterritt@google.com, tony.luck@intel.com, samitolvanen@google.com, fenghua.yu@intel.com Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-arch@vger.kernel.org References: <20230122024607.788454-1-ltykernel@gmail.com> <20230122024607.788454-13-ltykernel@gmail.com> <0098b974-7ceb-664a-aa53-afac8cc26d47@amd.com> From: Tianyu Lan In-Reply-To: <0098b974-7ceb-664a-aa53-afac8cc26d47@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/23/2023 3:33 PM, Gupta, Pankaj wrote: > >> + */ >> +.macro idtentry_hv vector asmsym cfunc >> +SYM_CODE_START(\asmsym) >> +    UNWIND_HINT_IRET_REGS >> +    ASM_CLAC > > Did you get a chance to review the new instructions > added at the start similar to idtentry_vc and comments > added assuggested here? > > https://lore.kernel.org/lkml/16e50239-39b2-4fb4-5110-18f13ba197fe@amd.com/ Hi Pankaj: Thanks for your reminder. Yes, CLD should be add after ASM_CLAC. Will fix it.