[PULL,13/56] acpi: tpm: Do not build TCPA table for TPM 2

Commit Message

Michael S. Tsirkin June 10, 2020, 4:27 a.m. UTC

From: Stefan Berger <[e-mail]>

Do not build a TCPA table for TPM 2 anymore but create the log area when
building the TPM2 table. The TCPA table is only needed for TPM 1.2.

Signed-off-by: Stefan Berger <[e-mail]>
Reviewed-by: Marc-André Lureau <[e-mail]>
Reviewed-by: Eric Auger <[e-mail]>
Reviewed-by: Igor Mammedov <[e-mail]>
Signed-off-by: Michael S. Tsirkin <[e-mail]>
Reviewed-by: Michael S. Tsirkin <[e-mail]>
---
 hw/i386/acpi-build.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

Patch

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 58fe505fb6..d05d010f77 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2216,6 +2216,10 @@  build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
     tpm2_ptr->log_area_minimum_length =
         cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE);
 
+    acpi_data_push(tcpalog, le32_to_cpu(tpm2_ptr->log_area_minimum_length));
+    bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1,
+                             false);
+
     /* 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,
@@ -2752,10 +2756,10 @@  void acpi_build(AcpiBuildTables *tables, MachineState *machine)
         build_hpet(tables_blob, tables->linker);
     }
     if (misc.tpm_version != TPM_VERSION_UNSPEC) {
-        acpi_add_table(table_offsets, tables_blob);
-        build_tpm_tcpa(tables_blob, tables->linker, tables->tcpalog);
-
-        if (misc.tpm_version == TPM_VERSION_2_0) {
+        if (misc.tpm_version == TPM_VERSION_1_2) {
+            acpi_add_table(table_offsets, tables_blob);
+            build_tpm_tcpa(tables_blob, tables->linker, tables->tcpalog);
+        } else { /* TPM_VERSION_2_0 */
             acpi_add_table(table_offsets, tables_blob);
             build_tpm2(tables_blob, tables->linker, tables->tcpalog);
         }