From patchwork Fri Jun 19 14:18:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 1312968 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=eHilra/n; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 49pLZR3CGBz9sSd for ; Sat, 20 Jun 2020 00:21:03 +1000 (AEST) Received: from localhost ([::1]:32778 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jmHt7-0002ed-6l for incoming@patchwork.ozlabs.org; Fri, 19 Jun 2020 10:21:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35496) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jmHrO-0000ei-Oi for qemu-devel@nongnu.org; Fri, 19 Jun 2020 10:19:14 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:35932 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jmHrM-0005zC-Ps for qemu-devel@nongnu.org; Fri, 19 Jun 2020 10:19:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592576351; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HkvHuQ+3WMR7u5OQW1M822QyzIgKI/D3j/1KCSO2aVE=; b=eHilra/nn20tXIUZy8dfCy6V+1ze3gRu01a3DUMhd7c6byQWutU5x+hLBe2MBOEkLfe45L lCUhaShgZWr1yrmIR5MdGAj0/XcE1RFsfO6guBzz1+6DeRGh4IG2dt82SprOl2kcyijvtL qcm0AzDWXdn/Ix9AgwW3leM41u6PTZ0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-93-bVBF3i9gOq6byCbevjLY5g-1; Fri, 19 Jun 2020 10:19:10 -0400 X-MC-Unique: bVBF3i9gOq6byCbevjLY5g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DE4CD801503; Fri, 19 Jun 2020 14:19:08 +0000 (UTC) Received: from laptop.redhat.com (ovpn-114-197.ams2.redhat.com [10.36.114.197]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9FD8A19724; Fri, 19 Jun 2020 14:19:05 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, stefanb@linux.ibm.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, mst@redhat.com, imammedo@redhat.com Subject: [PATCH v6 1/3] acpi: Some build_tpm2() code reshape Date: Fri, 19 Jun 2020 16:18:49 +0200 Message-Id: <20200619141851.16272-2-eric.auger@redhat.com> In-Reply-To: <20200619141851.16272-1-eric.auger@redhat.com> References: <20200619141851.16272-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=eric.auger@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/19 03:15:03 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, lersek@redhat.com, drjones@redhat.com, shannon.zhaosl@gmail.com, marcandre.lureau@redhat.com, philmd@redhat.com, ardb@kernel.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Remove any reference to Acpi20TPM2 and adopt an implementation similar to build_ghes_v2(). Signed-off-by: Eric Auger Suggested-by: Igor Mammedov Reviewed-by: Stefan Berger Tested-by: Stefan Berger Reviewed-by: Igor Mammedov --- v5 -> v6: - add reference to the spec + comment about LAML and LASA fields - also moved LASA intro comment above build_append_int_noprefix() as requested by Igor --- hw/acpi/aml-build.c | 54 +++++++++++++++++++++++++++++---------------- 1 file changed, 35 insertions(+), 19 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 2cb7b991ef..1cc08a3eb9 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -1878,48 +1878,64 @@ build_hdr: "FACP", tbl->len - fadt_start, f->rev, oem_id, oem_table_id); } +/* + * build_tpm2 - Build the TPM2 table as specified in table 7 of + * "TCG ACPI Specification; Family 1.2 and 2.0; + * Level 00 Revision 00.37, December 19, 2014" + * Note: the LASA and LAML fields are optional for TPM-2.0 (the above + * table does not mention them) but are needed at least for SeaBIOS. + * See the Acpi20TPM2 struct for the corresponding layout. + */ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog) { - Acpi20TPM2 *tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader)); - unsigned log_addr_size = sizeof(tpm2_ptr->log_area_start_address); - unsigned log_addr_offset = - (char *)&tpm2_ptr->log_area_start_address - table_data->data; uint8_t start_method_params[12] = {}; + unsigned log_addr_offset, tpm2_start; + uint64_t control_area_start_address; TPMIf *tpmif = tpm_find(); + uint32_t start_method; + void *tpm2_ptr; - /* platform class */ + tpm2_start = table_data->len; + tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader)); + + /* Platform Class */ build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2); - /* reserved */ + /* Reserved */ build_append_int_noprefix(table_data, 0, 2); if (TPM_IS_TIS_ISA(tpmif) || TPM_IS_TIS_SYSBUS(tpmif)) { - /* address of control area */ - build_append_int_noprefix(table_data, 0, 8); - /* start method */ - build_append_int_noprefix(table_data, TPM2_START_METHOD_MMIO, 4); + control_area_start_address = 0; + start_method = TPM2_START_METHOD_MMIO; } else if (TPM_IS_CRB(tpmif)) { - build_append_int_noprefix(table_data, TPM_CRB_ADDR_CTRL, 8); - build_append_int_noprefix(table_data, TPM2_START_METHOD_CRB, 4); + control_area_start_address = TPM_CRB_ADDR_CTRL; + start_method = TPM2_START_METHOD_CRB; } else { - g_warn_if_reached(); + g_assert_not_reached(); } + /* Address of Control Area */ + build_append_int_noprefix(table_data, control_area_start_address, 8); + /* Start Method */ + build_append_int_noprefix(table_data, start_method, 4); - /* platform specific parameters */ - g_array_append_vals(table_data, &start_method_params, 12); + /* Platform Specific Parameters */ + g_array_append_vals(table_data, &start_method_params, + ARRAY_SIZE(start_method_params)); - /* log area minimum length */ + /* Log Area Minimum Length */ build_append_int_noprefix(table_data, TPM_LOG_AREA_MINIMUM_SIZE, 4); acpi_data_push(tcpalog, TPM_LOG_AREA_MINIMUM_SIZE); bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1, false); - /* log area start address to be filled by Guest linker */ + log_addr_offset = table_data->len; + + /* Log Area Start Address to be filled by Guest linker */ build_append_int_noprefix(table_data, 0, 8); bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE, - log_addr_offset, log_addr_size, + log_addr_offset, 8, ACPI_BUILD_TPMLOG_FILE, 0); build_header(linker, table_data, - (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4, NULL, NULL); + tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, NULL, NULL); } /* ACPI 5.0: 6.4.3.8.2 Serial Bus Connection Descriptors */