From patchwork Fri Nov 4 18:38:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saurabh Singh Sengar X-Patchwork-Id: 15750 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp579569wru; Fri, 4 Nov 2022 11:55:06 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5VJrWeyq8UiO2jSd+aD31DY/9fWvGlDzR9PyJwY3cqOKhPM1LIEO0Og3fQgEuPcQ0QHTPq X-Received: by 2002:a05:6a00:acb:b0:555:ac02:433e with SMTP id c11-20020a056a000acb00b00555ac02433emr37195447pfl.3.1667588106281; Fri, 04 Nov 2022 11:55:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1667588106; cv=none; d=google.com; s=arc-20160816; b=PSmF6heWnFaqi3koy4vKQ/k4SwMTDStkmYHs1ysN0LVmNG03n1f9NV6EYiVlMrU6EB 9Rw9zNVVhn4lB39qdJcC1G5pK1M18OgaCZVWq8iCFTgwTmxHxd6G2Iz05musIKrkTYl6 QnmuqDa0yijDBxirNyTtn+skMw+HmhTMIyD3qGemTldKrHCb64QmLf5Hen0970ZhWwQp 4qHcnUC5TKKCe1wigxcjMRpxXIgCeqGP8KZX0EIhAUM/FI+TtU3pdE1vV4Z2I5FH0fAT 0wRFr04ZvhZqEobW+aNVZygKGrLC+TsI/zmx2p+2LNPLmRda7WiC2zKddmUwlIiWsxHz VjOg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:subject:to:from:dkim-signature :dkim-filter; bh=U9AOCmsv6YLLf4cMqDbSKLiOBujtTUIy6/UR/RPPRM8=; b=JA/hIWZY5JHt5KsUn8S8npAtbGLcuimqXXeqBXZFjASM9CzUGXf7BRqpYMT1z9FHal SK0JWPN6HNPmQ2eOAdy4eLCuWvVPXaarrCuPmMoYja3eoRbIVieYWncTYn4ojDoC73te SQHAhYNOygZEVMRf2kA+tSNKTMrjSp3KucPG55+ucFBB/wBGsV5mYTTEVJNIQhMe7dxA iP3mdAZynFZ0JcaBeagdMnljM6cz8zhMz7mZEu0y/8pVk55OKrkBxUGrPMVIfuIPOHSd DCChHRT/iIwYncSLSPlIT7X892P9i8Iml1baL2Cm0vpFvmZmNcdAhBUzwKLAwF56v8du JFZQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linux.microsoft.com header.s=default header.b=eu8H7yth; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linux.microsoft.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id r31-20020a63205f000000b0043c474c8942si202292pgm.673.2022.11.04.11.54.53; Fri, 04 Nov 2022 11:55:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linux.microsoft.com header.s=default header.b=eu8H7yth; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linux.microsoft.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231725AbiKDSix (ORCPT + 99 others); Fri, 4 Nov 2022 14:38:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230045AbiKDSiv (ORCPT ); Fri, 4 Nov 2022 14:38:51 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9CAAC10043; Fri, 4 Nov 2022 11:38:50 -0700 (PDT) Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id 83E46205DA32; Fri, 4 Nov 2022 11:38:48 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 83E46205DA32 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1667587128; bh=U9AOCmsv6YLLf4cMqDbSKLiOBujtTUIy6/UR/RPPRM8=; h=From:To:Subject:Date:From; b=eu8H7ythuTDN9Hn9PiACAdcWbJXCDTP7uD2h3n0sT+NAPtDr+NA2/YKiiHtTjRdTF Ba8yAiQtRKQGDNXhNDJnkHG7qOXvEbT3qo9qdQxXpIBF8Gc/igI2BNGwFR6k2IC8XE A8NAPrO2jmU2pmk3ZTfG4vDQUTIDopwXavjDnmr0= From: Saurabh Sengar To: ssengar@microsoft.com, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, ssengar@linux.microsoft.com, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, mikelley@microsoft.com, tglx@linutronix.de, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, anrayabh@linux.microsoft.com Subject: [PATCH v2] x86/Hyper-V: Expand definition of struct hv_vp_assist_page Date: Fri, 4 Nov 2022 11:38:43 -0700 Message-Id: <1667587123-31645-1-git-send-email-ssengar@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 X-Spam-Status: No, score=-19.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,USER_IN_DEF_DKIM_WL,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1748592866400980243?= X-GMAIL-MSGID: =?utf-8?q?1748592866400980243?= The struct hv_vp_assist_page has 24 bytes which is defined as u64[3], expand that to expose vtl_entry_reason, vtl_ret_x64rax and vtl_ret_x64rcx field. vtl_entry_reason is updated by hypervisor for the entry reason as to why the VTL was entered on the virtual processor. Guest updates the vtl_ret_* fields to provide the register values to restore on VTL return. The specific register values that are restored which will be updated on vtl_ret_x64rax and vtl_ret_x64rcx. Also added the missing fields for synthetic_time_unhalted_timer_expired, virtualization_fault_information and intercept_message. Signed-off-by: Saurabh Sengar Reviewed-by: --- [v2]: Corrected vtl_entry_reson size from u8 to u32 arch/x86/include/asm/hyperv-tlfs.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h index 3089ec3..6d9368e 100644 --- a/arch/x86/include/asm/hyperv-tlfs.h +++ b/arch/x86/include/asm/hyperv-tlfs.h @@ -374,11 +374,20 @@ struct hv_nested_enlightenments_control { struct hv_vp_assist_page { __u32 apic_assist; __u32 reserved1; - __u64 vtl_control[3]; + __u32 vtl_entry_reason; + __u32 vtl_reserved; + __u64 vtl_ret_x64rax; + __u64 vtl_ret_x64rcx; struct hv_nested_enlightenments_control nested_control; __u8 enlighten_vmentry; __u8 reserved2[7]; __u64 current_nested_vmcs; + __u8 synthetic_time_unhalted_timer_expired; + __u8 reserved3[7]; + __u8 virtualization_fault_information[40]; + __u8 reserved4[8]; + __u8 intercept_message[256]; + __u8 vtl_ret_actions[256]; } __packed; struct hv_enlightened_vmcs {