[PATCH v3 2/4] acpi: Move build_tpm2() in the generic part

[Eric Auger <eric.auger@redhat.com>]

We plan to build the TPM2 table on ARM too. In order to reuse the
generation code, let's move build_tpm2() to aml-build.c.

No change in the implementation.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 include/hw/acpi/aml-build.h |  2 ++
 hw/acpi/aml-build.c         | 44 +++++++++++++++++++++++++++++++++++++
 hw/i386/acpi-build.c        | 44 -------------------------------------
 3 files changed, 46 insertions(+), 44 deletions(-)

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index ed7c89309e..d27da03d64 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -437,4 +437,6 @@ void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms);
 
 void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
                 const char *oem_id, const char *oem_table_id);
+
+void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog);
 #endif
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 3681ec6e3d..b37052c1b4 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -26,6 +26,7 @@
 #include "qemu/bitops.h"
 #include "sysemu/numa.h"
 #include "hw/boards.h"
+#include "hw/acpi/tpm.h"
 
 static GArray *build_alloc_array(void)
 {
@@ -1877,6 +1878,49 @@ build_hdr:
                  "FACP", tbl->len - fadt_start, f->rev, oem_id, oem_table_id);
 }
 
+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] = {};
+
+    /* 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())) {
+        /* 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);
+    } else if (TPM_IS_CRB(tpm_find())) {
+        build_append_int_noprefix(table_data, TPM_CRB_ADDR_CTRL, 8);
+        build_append_int_noprefix(table_data, TPM2_START_METHOD_CRB, 4);
+    } else {
+        g_warn_if_reached();
+    }
+
+    /* platform specific parameters */
+    g_array_append_vals(table_data, &start_method_params, 12);
+
+    /* 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 */
+    build_append_int_noprefix(table_data, 0, 8);
+    bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
+                                   log_addr_offset, log_addr_size,
+                                   ACPI_BUILD_TPMLOG_FILE, 0);
+    build_header(linker, table_data,
+                 (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4, NULL, NULL);
+}
+
 /* ACPI 5.0: 6.4.3.8.2 Serial Bus Connection Descriptors */
 static Aml *aml_serial_bus_device(uint8_t serial_bus_type, uint8_t flags,
                                   uint16_t type_flags,
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index f0d35d7b17..b7c7583b5f 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2295,50 +2295,6 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
                  (void *)tcpa, "TCPA", sizeof(*tcpa), 2, NULL, NULL);
 }
 
-static 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] = {};
-
-    /* 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())) {
-        /* 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);
-    } else if (TPM_IS_CRB(tpm_find())) {
-        build_append_int_noprefix(table_data, TPM_CRB_ADDR_CTRL, 8);
-        build_append_int_noprefix(table_data, TPM2_START_METHOD_CRB, 4);
-    } else {
-        g_warn_if_reached();
-    }
-
-    /* platform specific parameters */
-    g_array_append_vals(table_data, &start_method_params, 12);
-
-    /* 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 */
-    build_append_int_noprefix(table_data, 0, 8);
-    bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
-                                   log_addr_offset, log_addr_size,
-                                   ACPI_BUILD_TPMLOG_FILE, 0);
-    build_header(linker, table_data,
-                 (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4, NULL, NULL);
-}
-
 #define HOLE_640K_START  (640 * KiB)
 #define HOLE_640K_END   (1 * MiB)
 
-- 
2.20.1