diff options
| -rw-r--r-- | hw/i386/acpi-build.c | 12 | ||||
| -rw-r--r-- | include/sysemu/tpm.h | 3 |
2 files changed, 11 insertions, 4 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index cdb4aa9835..dd1420b410 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2038,7 +2038,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, } } - if (misc->tpm_version != TPM_VERSION_UNSPEC) { + if (TPM_IS_TIS(tpm_find())) { aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE, AML_READ_WRITE)); } @@ -2204,7 +2204,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, /* Scan all PCI buses. Generate tables to support hotplug. */ build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en); - if (misc->tpm_version != TPM_VERSION_UNSPEC) { + if (TPM_IS_TIS(tpm_find())) { dev = aml_device("ISA.TPM"); aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C31"))); aml_append(dev, aml_name_decl("_STA", aml_int(0xF))); @@ -2281,8 +2281,12 @@ build_tpm2(GArray *table_data, BIOSLinker *linker) tpm2_ptr = acpi_data_push(table_data, sizeof *tpm2_ptr); tpm2_ptr->platform_class = cpu_to_le16(TPM2_ACPI_CLASS_CLIENT); - tpm2_ptr->control_area_address = cpu_to_le64(0); - tpm2_ptr->start_method = cpu_to_le32(TPM2_START_METHOD_MMIO); + if (TPM_IS_TIS(tpm_find())) { + tpm2_ptr->control_area_address = cpu_to_le64(0); + tpm2_ptr->start_method = cpu_to_le32(TPM2_START_METHOD_MMIO); + } else { + g_warn_if_reached(); + } build_header(linker, table_data, (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4, NULL, NULL); diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h index 650b4b8565..852e02687c 100644 --- a/include/sysemu/tpm.h +++ b/include/sysemu/tpm.h @@ -47,6 +47,9 @@ typedef struct TPMIfClass { #define TYPE_TPM_TIS "tpm-tis" +#define TPM_IS_TIS(chr) \ + object_dynamic_cast(OBJECT(chr), TYPE_TPM_TIS) + /* returns NULL unless there is exactly one TPM device */ static inline TPMIf *tpm_find(void) { |