From nobody Sat Nov 23 22:41:19 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1730789264; cv=none; d=zohomail.com; s=zohoarc; b=OcnYAV9U1c1LGPAWQh8YTlNxAL9Z3Ly3dt7KVrgQKyz/eHjg0qEe9LbZxKDGiq3hlg4S+Decr0lMVnxMFrGLSGaLpjxAjK6iI9znZX319UZmti6a+NOdErJNV9RngctF0ZoZ0rQ0Q1v6GsmyAzLyeNrvMSq41onHRJ077wELWiQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1730789264; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=sWmTwr2hMF2w9bYUwZ4zyKtxi11ah/OA84lA8IjKE0s=; b=eW8ljSfFFEWLMIAXUcXTTYancQatoSmGVpC+ogLqXOgN/eDzxbRFiYxkuJ6e8Z1I720q5ltl67TIfqhcZuGvD1ww0sketrpC3aD8jdVaqI2fOw5xQgjHuW1SmpvRa9LO6oX33/cQKQGg6LEBRXQI1e1OiuzzCYlreYrgsru2HJU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1730789264375370.89792794594666; Mon, 4 Nov 2024 22:47:44 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t8DCi-0006wn-Kj; Tue, 05 Nov 2024 01:38:19 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t8DCY-0006qW-Po for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:38:07 -0500 Received: from mgamail.intel.com ([198.175.65.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t8DCW-0001w0-Nk for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:38:06 -0500 Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2024 22:37:53 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa009.fm.intel.com with ESMTP; 04 Nov 2024 22:37:49 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730788685; x=1762324685; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=O+bsng0OpqwNAjJu2viZcM1uSHuVeOnU2MBD79mzkgE=; b=PUZBP6zLhSPTE2x7zaapKFJML+dBcd9elxC554SRoPtFvJWSZeoFPSLh rfr0Nr+O7VtG5EFVOGMnp8+6TuZppwBSrGl1jts1LMracpEDjLp1QeR9a cUJD8twJIKUL/p2vR+nF72yDNVG8W4VefLqJnTTqxVVNEYyIpqZtZEEkn 66kxDgJ9BAxXNIFaHiYBGiywOzSjSD9WwZVaiSG7f40X1RMFjYSlJJrb7 YrGOonus1hr4DNUa5SwZyla9dgf07VgmM+rNnoALc8qWLxemQbXTsRsfF U6AZ7ePh8nimLfpatF9o2TESyfEqixSE6Li7bYiiyEgM9RX9HvFIDNNXM A==; X-CSE-ConnectionGUID: LTsvNPZcTAuvR8l1Thm0Xg== X-CSE-MsgGUID: SxWbRQ7zQqSP4jOF0LI4Cw== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="30689533" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="30689533" X-CSE-ConnectionGUID: igX+T3kWQlmGCs/qvn4FXA== X-CSE-MsgGUID: flkki1dAQsOAxyMp0EcImg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,259,1725346800"; d="scan'208";a="83988983" From: Xiaoyao Li To: Paolo Bonzini , Riku Voipio , Richard Henderson , Zhao Liu , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , Ani Sinha Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , Cornelia Huck , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti , rick.p.edgecombe@intel.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH v6 21/60] i386/tdx: Track mem_ptr for each firmware entry of TDVF Date: Tue, 5 Nov 2024 01:23:29 -0500 Message-Id: <20241105062408.3533704-22-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241105062408.3533704-1-xiaoyao.li@intel.com> References: <20241105062408.3533704-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=198.175.65.18; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.34, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.781, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1730789265155116600 Content-Type: text/plain; charset="utf-8" For each TDVF sections, QEMU needs to copy the content to guest private memory via KVM API (KVM_TDX_INIT_MEM_REGION). Introduce a field @mem_ptr for TdxFirmwareEntry to track the memory pointer of each TDVF sections. So that QEMU can add/copy them to guest private memory later. TDVF sections can be classified into two groups: - Firmware itself, e.g., TDVF BFV and CFV, that located separately from guest RAM. Its memory pointer is the bios pointer. - Sections located at guest RAM, e.g., TEMP_MEM and TD_HOB. mmap a new memory range for them. Register a machine_init_done callback to do the stuff. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- hw/i386/tdvf.c | 1 + include/hw/i386/tdvf.h | 7 +++++++ target/i386/kvm/tdx.c | 33 +++++++++++++++++++++++++++++++++ 3 files changed, 41 insertions(+) diff --git a/hw/i386/tdvf.c b/hw/i386/tdvf.c index 4afa636bfa0e..535409f34b41 100644 --- a/hw/i386/tdvf.c +++ b/hw/i386/tdvf.c @@ -190,6 +190,7 @@ int tdvf_parse_metadata(TdxFirmware *fw, void *flash_pt= r, int size) } g_free(sections); =20 + fw->mem_ptr =3D flash_ptr; return 0; =20 err: diff --git a/include/hw/i386/tdvf.h b/include/hw/i386/tdvf.h index 593341eb2e93..d880af245a73 100644 --- a/include/hw/i386/tdvf.h +++ b/include/hw/i386/tdvf.h @@ -39,13 +39,20 @@ typedef struct TdxFirmwareEntry { uint64_t size; uint32_t type; uint32_t attributes; + + void *mem_ptr; } TdxFirmwareEntry; =20 typedef struct TdxFirmware { + void *mem_ptr; + uint32_t nr_entries; TdxFirmwareEntry *entries; } TdxFirmware; =20 +#define for_each_tdx_fw_entry(fw, e) \ + for (e =3D (fw)->entries; e !=3D (fw)->entries + (fw)->nr_entries; e++) + int tdvf_parse_metadata(TdxFirmware *fw, void *flash_ptr, int size); =20 #endif /* HW_I386_TDVF_H */ diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 334dbe95cc77..6777f66a6451 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -14,9 +14,13 @@ #include "qemu/osdep.h" #include "qemu/error-report.h" #include "qemu/base64.h" +#include "qemu/mmap-alloc.h" #include "qapi/error.h" #include "qom/object_interfaces.h" +#include "sysemu/sysemu.h" =20 +#include "hw/i386/x86.h" +#include "hw/i386/tdvf.h" #include "hw/i386/x86.h" #include "kvm_i386.h" #include "tdx.h" @@ -126,6 +130,33 @@ void tdx_set_tdvf_region(MemoryRegion *tdvf_mr) tdx_guest->tdvf_mr =3D tdvf_mr; } =20 +static void tdx_finalize_vm(Notifier *notifier, void *unused) +{ + TdxFirmware *tdvf =3D &tdx_guest->tdvf; + TdxFirmwareEntry *entry; + + for_each_tdx_fw_entry(tdvf, entry) { + switch (entry->type) { + case TDVF_SECTION_TYPE_BFV: + case TDVF_SECTION_TYPE_CFV: + entry->mem_ptr =3D tdvf->mem_ptr + entry->data_offset; + break; + case TDVF_SECTION_TYPE_TD_HOB: + case TDVF_SECTION_TYPE_TEMP_MEM: + entry->mem_ptr =3D qemu_ram_mmap(-1, entry->size, + qemu_real_host_page_size(), 0, = 0); + break; + default: + error_report("Unsupported TDVF section %d", entry->type); + exit(1); + } + } +} + +static Notifier tdx_machine_done_notify =3D { + .notify =3D tdx_finalize_vm, +}; + static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) { TdxGuest *tdx =3D TDX_GUEST(cgs); @@ -140,6 +171,8 @@ static int tdx_kvm_init(ConfidentialGuestSupport *cgs, = Error **errp) } } =20 + qemu_add_machine_init_done_notifier(&tdx_machine_done_notify); + tdx_guest =3D tdx; return 0; } --=20 2.34.1