From patchwork Thu Apr 22 19:24:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuppuswamy Sathyanarayanan X-Patchwork-Id: 12219057 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=ham 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 900B9C433ED for ; Thu, 22 Apr 2021 19:24:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 526C761424 for ; Thu, 22 Apr 2021 19:24:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236950AbhDVTZV (ORCPT ); Thu, 22 Apr 2021 15:25:21 -0400 Received: from mga11.intel.com ([192.55.52.93]:21022 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236810AbhDVTZV (ORCPT ); Thu, 22 Apr 2021 15:25:21 -0400 IronPort-SDR: WKCQRWxqR7/ntGjXakZzIvFgOJaC7WqKcS5i/5LKKfP2PllXHNVFI0dvjvDKdPNJsWHdHu+uot CyETQLutiMJQ== X-IronPort-AV: E=McAfee;i="6200,9189,9962"; a="192770834" X-IronPort-AV: E=Sophos;i="5.82,243,1613462400"; d="scan'208";a="192770834" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2021 12:24:45 -0700 IronPort-SDR: xC3dJ3mJiMbPEDwH2j8CVismhr2BBlNWZAUpta5L6EnGvNg52rIC6CYOgsCXIWG2Rd8jx/L7hu Kty2lwreupxg== X-IronPort-AV: E=Sophos;i="5.82,243,1613462400"; d="scan'208";a="464063686" Received: from eassadia-mobl1.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.254.4.68]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2021 12:24:44 -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 0/3] Add multiprocessor wake-up support Date: Thu, 22 Apr 2021 12:24:38 -0700 Message-Id: <20210422192442.706906-1-sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@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 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(+)