From patchwork Fri Aug 18 09:50:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13357635 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5D186C71147 for ; Fri, 18 Aug 2023 10:00:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qWwGg-0004tw-3y; Fri, 18 Aug 2023 05:59:46 -0400 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 1qWwFY-0004BM-Vi for qemu-devel@nongnu.org; Fri, 18 Aug 2023 05:58:37 -0400 Received: from mgamail.intel.com ([192.55.52.120]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qWwFV-0000Gh-Ok for qemu-devel@nongnu.org; Fri, 18 Aug 2023 05:58:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692352714; x=1723888714; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=IhvtxSpt6FOi1JkKs4Dfm9WIqjnZ+TzRdn1/m8kZ5AM=; b=ikgFb80A9V21X4w/kjpK8yEatDsItLPkCTLa9VUtN/GfVx1i0Z26RHhW GATBtKb0b7zfINdKrPaO7Mkor0UQxBryuO8dMnb6x4CoYFkOelgt+mTjY k3AWHkmzTvQc4ol3NNXxnszTraGu62LUWa5ksNtSoVIVAZxMUzWp/0AfV ZCEVW4Jtx+ZgMOtdmcMWPt/YPTVpZzwxmiWwp0zW62Oje/Ic1NPZWP1Ap RuNCPzMRV1yXbUSP5RIEjsjtfUr6TIzLtxFByzDfjA9MeqnMJShea+drB 7j+9SwqhsWon54XTKXXdztbOQIc2VOpSKjFIT98yp0XDNlzb4pr14FX+h Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="371966455" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="371966455" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2023 02:57:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="849235377" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="849235377" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.46]) by fmsmga002.fm.intel.com with ESMTP; 18 Aug 2023 02:57:24 -0700 From: Xiaoyao Li To: Paolo Bonzini , Richard Henderson , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , Ani Sinha , Peter Xu , David Hildenbrand , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , =?utf-8?q?Dani?= =?utf-8?q?el_P=2E_Berrang=C3=A9?= , Cornelia Huck , Eric Blake , Markus Armbruster , Marcelo Tosatti , Gerd Hoffmann Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Eduardo Habkost , Laszlo Ersek , xiaoyao.li@intel.com, Isaku Yamahata , erdemaktas@google.com, Chenyi Qiang Subject: [PATCH v2 35/58] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION Date: Fri, 18 Aug 2023 05:50:18 -0400 Message-Id: <20230818095041.1973309-36-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230818095041.1973309-1-xiaoyao.li@intel.com> References: <20230818095041.1973309-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.120; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.021, 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=0.001, RCVD_IN_DNSWL_MED=-2.3, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Isaku Yamahata TDVF firmware (CODE and VARS) needs to be added/copied to TD's private memory via KVM_TDX_INIT_MEM_REGION, as well as TD HOB and TEMP memory. Signed-off-by: Isaku Yamahata Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- Changes from RFC v4: - rename variable @metadata to @flags --- target/i386/kvm/tdx.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 3a93ad293129..37ff0f4eea11 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -576,6 +576,7 @@ static void tdx_finalize_vm(Notifier *notifier, void *unused) { TdxFirmware *tdvf = &tdx_guest->tdvf; TdxFirmwareEntry *entry; + int r; tdx_init_ram_entries(); @@ -601,6 +602,29 @@ static void tdx_finalize_vm(Notifier *notifier, void *unused) sizeof(TdxRamEntry), &tdx_ram_entry_compare); tdvf_hob_create(tdx_guest, tdx_get_hob_entry(tdx_guest)); + + for_each_tdx_fw_entry(tdvf, entry) { + struct kvm_tdx_init_mem_region mem_region = { + .source_addr = (__u64)entry->mem_ptr, + .gpa = entry->address, + .nr_pages = entry->size / 4096, + }; + + __u32 flags = entry->attributes & TDVF_SECTION_ATTRIBUTES_MR_EXTEND ? + KVM_TDX_MEASURE_MEMORY_REGION : 0; + + r = tdx_vm_ioctl(KVM_TDX_INIT_MEM_REGION, flags, &mem_region); + if (r < 0) { + error_report("KVM_TDX_INIT_MEM_REGION failed %s", strerror(-r)); + exit(1); + } + + if (entry->type == TDVF_SECTION_TYPE_TD_HOB || + entry->type == TDVF_SECTION_TYPE_TEMP_MEM) { + qemu_ram_munmap(-1, entry->mem_ptr, entry->size); + entry->mem_ptr = NULL; + } + } } static Notifier tdx_machine_done_notify = {