From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13BE1C43461 for ; Thu, 22 Apr 2021 21:47:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D91A261405 for ; Thu, 22 Apr 2021 21:47:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238818AbhDVVrx (ORCPT ); Thu, 22 Apr 2021 17:47:53 -0400 Received: from mga05.intel.com ([192.55.52.43]:1514 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235977AbhDVVrv (ORCPT ); Thu, 22 Apr 2021 17:47:51 -0400 IronPort-SDR: cQjrM/f+uLMWloLseWQGiakuo8FZ0ORNLGzQXxt32i1QA6XBCtJZBlJGVUHVVvUXDo1hl7nXWp sdwMKhM7Sc+g== X-IronPort-AV: E=McAfee;i="6200,9189,9962"; a="281306569" X-IronPort-AV: E=Sophos;i="5.82,243,1613462400"; d="scan'208";a="281306569" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2021 14:47:16 -0700 IronPort-SDR: qaoU98k/mhRZoQ1fRosIOisWuC5+QkRFINfykCIsfg670jutDn024bnoGUHyLMG6SqJCwdbSLb 9LkPHOlIgvLA== X-IronPort-AV: E=Sophos;i="5.82,243,1613462400"; d="scan'208";a="455965113" Received: from eassadia-mobl1.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.254.4.68]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2021 14:47:15 -0700 From: Kuppuswamy Sathyanarayanan To: Rafael J Wysocki , Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , Peter Zijlstra Cc: Len Brown , Robert Moore , Erik Kaneda , linux-acpi@vger.kernel.org, devel@acpica.org, linux-kernel@vger.kernel.org, x86@kernel.org, Kuppuswamy Sathyanarayanan Subject: [PATCH v2 0/3] Add multiprocessor wake-up support Date: Thu, 22 Apr 2021 14:47:05 -0700 Message-Id: <20210422214708.716164-1-sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add multiprocessor wakeup support using MADT ACPI table for x86 platforms. It uses mailbox based mechanism to wake up the APs. You can get more details about the ACPI table and mailbox protocol in Guest-Host-Communication Interface (GHCI) for Intel Trust Domain Extensions (Intel TDX) specification document (sec 4.1) https://software.intel.com/content/dam/develop/external/us/en/documents/intel-tdx-guest-hypervisor-communication-interface.pdf Changes since v1: * Removed signoff from Rob and Erik. Kuppuswamy Sathyanarayanan (3): ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure ACPI/table: Print MADT Wake table information x86/acpi, x86/boot: Add multiprocessor wake-up support arch/x86/include/asm/apic.h | 3 ++ arch/x86/kernel/acpi/boot.c | 56 +++++++++++++++++++++++++++++++++ arch/x86/kernel/apic/probe_32.c | 8 +++++ arch/x86/kernel/apic/probe_64.c | 8 +++++ drivers/acpi/tables.c | 11 +++++++ include/acpi/actbl2.h | 14 +++++++++ 6 files changed, 100 insertions(+) -- 2.25.1