[Qemu-devel] [PATCH v3 03/52] pc: acpi: make top level ACPI tables blob Aml*

[Igor Mammedov <imammedo@redhat.com>]

it will permit to add a separate tables into blob like other
AML constructs using aml_append() routine and hide from user
need to invoke linker manually for tables, handling it
automatically inside of aml_append() helper.

Later when all tables are converted to use AML API, it would
be possible to generate RSDT automatically and drop manual
table offsets tracking for RSDT.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 8020899..788962e 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1238,7 +1238,7 @@ build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt)
 
 typedef
 struct AcpiBuildTables {
-    GArray *table_data;
+    Aml *table_data;
     GArray *rsdp;
     GArray *tcpalog;
     GArray *linker;
@@ -1247,17 +1247,17 @@ struct AcpiBuildTables {
 static inline void acpi_build_tables_init(AcpiBuildTables *tables)
 {
     tables->rsdp = g_array_new(false, true /* clear */, 1);
-    tables->table_data = g_array_new(false, true /* clear */, 1);
     tables->tcpalog = g_array_new(false, true /* clear */, 1);
     tables->linker = bios_linker_loader_init();
+    tables->table_data = init_aml_allocator(tables->linker);
 }
 
 static inline void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
 {
     void *linker_data = bios_linker_loader_cleanup(tables->linker);
+    free_aml_allocator();
     g_free(linker_data);
     g_array_free(tables->rsdp, mfre);
-    g_array_free(tables->table_data, true);
     g_array_free(tables->tcpalog, mfre);
 }
 
@@ -1317,7 +1317,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
     PcPciInfo pci;
     uint8_t *u;
     size_t aml_len = 0;
-    GArray *tables_blob = tables->table_data;
+    GArray *tables_blob = tables->table_data->buf;
 
     acpi_get_cpu_info(&cpu);
     acpi_get_pm_info(&pm);
@@ -1469,14 +1469,14 @@ static void acpi_build_update(void *build_opaque, uint32_t offset)
 
     acpi_build(build_state->guest_info, &tables);
 
-    assert(acpi_data_len(tables.table_data) == build_state->table_size);
+    assert(acpi_data_len(tables.table_data->buf) == build_state->table_size);
 
     /* Make sure RAM size is correct - in case it got changed by migration */
     qemu_ram_resize(build_state->table_ram, build_state->table_size,
                     &error_abort);
 
-    memcpy(qemu_get_ram_ptr(build_state->table_ram), tables.table_data->data,
-           build_state->table_size);
+    memcpy(qemu_get_ram_ptr(build_state->table_ram),
+           tables.table_data->buf->data, build_state->table_size);
 
     cpu_physical_memory_set_dirty_range_nocode(build_state->table_ram,
                                                build_state->table_size);
@@ -1537,11 +1537,12 @@ void acpi_setup(PcGuestInfo *guest_info)
     acpi_build(build_state->guest_info, &tables);
 
     /* Now expose it all to Guest */
-    build_state->table_ram = acpi_add_rom_blob(build_state, tables.table_data,
+    build_state->table_ram = acpi_add_rom_blob(build_state,
+                                               tables.table_data->buf,
                                                ACPI_BUILD_TABLE_FILE,
                                                ACPI_BUILD_TABLE_MAX_SIZE);
     assert(build_state->table_ram != RAM_ADDR_MAX);
-    build_state->table_size = acpi_data_len(tables.table_data);
+    build_state->table_size = acpi_data_len(tables.table_data->buf);
 
     acpi_add_rom_blob(NULL, tables.linker, "etc/table-loader", 0);
 
-- 
1.8.3.1