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acpi: Update TPM2 ACPI table to more recent specs

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More recent specs of the TPM2 ACPI table add fields for the log area
start address and the log area minimum size, which we already use
for the TCPA table.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Stefan Berger 2017-11-14 13:42:42 -05:00 committed by Stefan Berger
parent b86da7dded
commit 4a42fa0ee2
2 changed files with 19 additions and 7 deletions
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19
hw/i386/acpi-build.c
View File

@ -2274,16 +2274,25 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
}
static void
build_tpm2(GArray *table_data, BIOSLinker *linker)
build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
{
Acpi20TPM2 *tpm2_ptr;
tpm2_ptr = acpi_data_push(table_data, sizeof *tpm2_ptr);
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;
tpm2_ptr->platform_class = cpu_to_le16(TPM2_ACPI_CLASS_CLIENT);
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);
tpm2_ptr->log_area_minimum_length =
cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE);
/* 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,
ACPI_BUILD_TPMLOG_FILE, 0);
} else {
g_warn_if_reached();
}
@ -2695,7 +2704,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
if (misc.tpm_version == TPM_VERSION_2_0) {
acpi_add_table(table_offsets, tables_blob);
build_tpm2(tables_blob, tables->linker);
build_tpm2(tables_blob, tables->linker, tables->tcpalog);
}
}
if (pcms->numa_nodes) {

7
include/hw/acpi/acpi-defs.h
View File

@ -558,8 +558,8 @@ typedef struct Acpi20Tcpa Acpi20Tcpa;
/*
* TPM2
*
* Following Level 00, Rev 00.37 of specs:
* http://www.trustedcomputinggroup.org/resources/tcg_acpi_specification
* Following Version 1.2, Revision 8 of specs:
* https://trustedcomputinggroup.org/tcg-acpi-specification/
*/
struct Acpi20TPM2 {
ACPI_TABLE_HEADER_DEF
@ -567,6 +567,9 @@ struct Acpi20TPM2 {
uint16_t reserved;
uint64_t control_area_address;
uint32_t start_method;
uint8_t start_method_params[12];
uint32_t log_area_minimum_length;
uint64_t log_area_start_address;
} QEMU_PACKED;
typedef struct Acpi20TPM2 Acpi20TPM2;