From patchwork Fri Jun 4 21:25:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Erik Kaneda X-Patchwork-Id: 454198 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=-21.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 48AF9C4743F for ; Fri, 4 Jun 2021 22:01:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D41261408 for ; Fri, 4 Jun 2021 22:01:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231393AbhFDWCr (ORCPT ); Fri, 4 Jun 2021 18:02:47 -0400 Received: from mga06.intel.com ([134.134.136.31]:62958 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229668AbhFDWCq (ORCPT ); Fri, 4 Jun 2021 18:02:46 -0400 IronPort-SDR: 9OYUXyZr08mXW+KNkPm/qeb/fIrJCjuUtyUfkYvop0o9xlGItezlZmM4Hvjgs+weS4KF4feRCR ESKzVGzUlAlw== X-IronPort-AV: E=McAfee;i="6200,9189,10005"; a="265539942" X-IronPort-AV: E=Sophos;i="5.83,249,1616482800"; d="scan'208";a="265539942" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jun 2021 15:00:55 -0700 IronPort-SDR: zYE8vwRpRP1S2AC+tI7d0Vt6ZvPIsvxEVzQuNDc/GzWXfcK/vg0eueSlDk5tp3jk2FboliuWTj qJCSLbNY3MTQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,249,1616482800"; d="scan'208";a="634146700" Received: from sibelius.jf.intel.com ([10.54.75.166]) by fmsmga006.fm.intel.com with ESMTP; 04 Jun 2021 15:00:55 -0700 From: Erik Kaneda To: "Rafael J . Wysocki" , ACPI Devel Maling List Cc: Kuppuswamy Sathyanarayanan , Robert Moore , Erik Kaneda , "Rafael J . Wysocki" Subject: [PATCH 02/14] ACPICA: Add SVKL table headers Date: Fri, 4 Jun 2021 14:25:56 -0700 Message-Id: <20210604212608.2604267-3-erik.kaneda@intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210604212608.2604267-1-erik.kaneda@intel.com> References: <20210604212608.2604267-1-erik.kaneda@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Kuppuswamy Sathyanarayanan ACPICA commit b5e6bcf69dbb9877481992d5ce86008cfb94f5b8 SVKL (Storage Volume Key Location Table) is used by BIOS/Firmware to share storage volume encryption key's with OS. It will be used by userspace to decrypt and mount encrypted drives. So add SVKL table signature and add it to known signatures array support SVKL. You can find details about the SVKL table in TDX specfication titled "Guest-Host-Communication Interface (GHCI) for Intel Trust Domain Extensions (Intel® TDX)", sec 4.4 and in ACPI specification r6.4, sec 5.2.6. https://software.intel.com/content/dam/develop/external/us/en/documents/intel-tdx-guest-hypervisor-communication-interface.pdf Cc: Robert Moore Cc: Erik Kaneda Cc: Rafael J. Wysocki Link: https://github.com/acpica/acpica/commit/b5e6bcf6 Signed-off-by: Kuppuswamy Sathyanarayanan Signed-off-by: Bob Moore Signed-off-by: Erik Kaneda --- include/acpi/actbl2.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 3b6f45a2edc8..d8fec67e4c8c 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -44,6 +44,7 @@ #define ACPI_SIG_SDEI "SDEI" /* Software Delegated Exception Interface Table */ #define ACPI_SIG_SDEV "SDEV" /* Secure Devices table */ #define ACPI_SIG_NHLT "NHLT" /* Non-HDAudio Link Table */ +#define ACPI_SIG_SVKL "SVKL" /* Storage Volume Key Location Table */ /* * All tables must be byte-packed to match the ACPI specification, since @@ -1913,6 +1914,35 @@ struct acpi_sdev_pcie_path { u8 function; }; +/******************************************************************************* + * + * SVKL - Storage Volume Key Location Table (ACPI 6.4) + * Version 1 + * + ******************************************************************************/ + +struct acpi_table_svkl { + struct acpi_table_header header; /* Common ACPI table header */ + u32 count; +}; + +struct acpi_svkl_header { + u16 type; + u16 format; + u32 size; + u64 address; +}; + +enum acpi_svkl_type { + ACPI_SVKL_TYPE_MAIN_STORAGE = 0, + ACPI_SVKL_TYPE_RESERVED = 1 /* 1 and greater are reserved */ +}; + +enum acpi_svkl_format { + ACPI_SVKL_FORMAT_RAW_BINARY = 0, + ACPI_SVKL_FORMAT_RESERVED = 1 /* 1 and greater are reserved */ +}; + /* Reset to default packing */ #pragma pack()