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Thu, 11 Jun 2020 13:59:36 +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 938415D9DC; Thu, 11 Jun 2020 13:59:33 +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, shannon.zhaosl@gmail.com, imammedo@redhat.com Subject: [PATCH v4 1/5] acpi: Convert build_tpm2() to build_append* API Date: Thu, 11 Jun 2020 15:59:13 +0200 Message-Id: <20200611135917.18300-2-eric.auger@redhat.com> In-Reply-To: <20200611135917.18300-1-eric.auger@redhat.com> References: <20200611135917.18300-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/11 03:29:33 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_H4=-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: marcandre.lureau@redhat.com, drjones@redhat.com, lersek@redhat.com, ardb@kernel.org, philmd@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" In preparation of its move to the generic acpi code, let's convert build_tpm2() to use build_append API. This latter now is prefered in place of direct ACPI struct field settings with manual endianness conversion. Signed-off-by: Eric Auger --- v3 -> v4: - Don't use Acpi20TPM2 *tpm2_ptr anymore - Use variables for control area start address and start method - Simplified arg values passed to bios_linker_loader_add_pointer - use g_assert_not_reached() --- hw/i386/acpi-build.c | 49 +++++++++++++++++++++++++++++--------------- 1 file changed, 33 insertions(+), 16 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index b5669d6c65..f150d95ecc 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2298,35 +2298,52 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog) static void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog) { - Acpi20TPM2 *tpm2_ptr = acpi_data_push(table_data, sizeof *tpm2_ptr); - 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; + uint32_t start_method; + void *tpm2_ptr; - tpm2_ptr->platform_class = cpu_to_le16(TPM2_ACPI_CLASS_CLIENT); + 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 */ + build_append_int_noprefix(table_data, 0, 2); if (TPM_IS_TIS_ISA(tpm_find())) { - tpm2_ptr->control_area_address = cpu_to_le64(0); - tpm2_ptr->start_method = cpu_to_le32(TPM2_START_METHOD_MMIO); + control_area_start_address = 0; + start_method = TPM2_START_METHOD_MMIO; } else if (TPM_IS_CRB(tpm_find())) { - tpm2_ptr->control_area_address = cpu_to_le64(TPM_CRB_ADDR_CTRL); - tpm2_ptr->start_method = cpu_to_le32(TPM2_START_METHOD_CRB); + 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); - tpm2_ptr->log_area_minimum_length = - cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE); + /* Platform Specific Parameters */ + g_array_append_vals(table_data, &start_method_params, + ARRAY_SIZE(start_method_params)); - acpi_data_push(tcpalog, le32_to_cpu(tpm2_ptr->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; + build_append_int_noprefix(table_data, 0, 8); + /* Log Area Start Address to be filled by Guest linker */ 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); } #define HOLE_640K_START (640 * KiB)