[Qemu-devel] [PATCH v3 06/52] pc: acpi-build: use aml_def_block() for declaring SSDT table

[Igor Mammedov]

it replaces prebuilt SSDT table header template copying/patching
with AML API

Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
 hw/i386/acpi-build.c | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 553c86b..fcefa07 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -816,15 +816,15 @@ static void patch_pci_windows(PcPciInfo *pci, uint8_t 
*start, unsigned size)
 }
 
 static void
-build_ssdt(GArray *table_data, GArray *linker,
+build_ssdt(Aml *table_data,
            AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc,
            PcPciInfo *pci, PcGuestInfo *guest_info)
 {
     MachineState *machine = MACHINE(qdev_get_machine());
     uint32_t nr_mem = machine->ram_slots;
     unsigned acpi_cpus = guest_info->apic_id_limit;
-    int ssdt_start = table_data->len;
     uint8_t *ssdt_ptr;
+    Aml *ssdt;
     int i;
 
     /* The current AML generator can cover the APIC ID range [0..255],
@@ -832,9 +832,17 @@ build_ssdt(GArray *table_data, GArray *linker,
     QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
     g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT);
 
-    /* Copy header and patch values in the S3_ / S4_ / S5_ packages */
-    ssdt_ptr = acpi_data_push(table_data, sizeof(ssdp_misc_aml));
-    memcpy(ssdt_ptr, ssdp_misc_aml, sizeof(ssdp_misc_aml));
+    /* Init SSDT Definition Block */
+    ssdt = aml_def_block("SSDT", 1, ACPI_BUILD_APPNAME6,
+                         ACPI_BUILD_APPNAME4, 1,
+                         ACPI_BUILD_APPNAME4_HEX, 1);
+
+    /* Copy misc variables and patch values in the S3_ / S4_ / S5_ packages */
+    acpi_data_push(ssdt->buf, sizeof(ssdp_misc_aml) - sizeof(AcpiTableHeader));
+    ssdt_ptr = (uint8_t *)ssdt->buf->data;
+    memcpy(ssdt_ptr + sizeof(AcpiTableHeader),
+           ssdp_misc_aml + sizeof(AcpiTableHeader),
+           sizeof(ssdp_misc_aml) - sizeof(AcpiTableHeader));
     if (pm->s3_disabled) {
         ssdt_ptr[acpi_s3_name[0]] = 'X';
     }
@@ -944,13 +952,11 @@ build_ssdt(GArray *table_data, GArray *linker,
             }
         }
         build_package(sb_scope, op);
-        build_append_array(table_data, sb_scope);
+        build_append_array(ssdt->buf, sb_scope);
         build_free_array(sb_scope);
     }
 
-    build_header(linker, table_data,
-                 (void *)(table_data->data + ssdt_start),
-                 "SSDT", table_data->len - ssdt_start, 1);
+    aml_append(table_data, ssdt);
 }
 
 static void
@@ -1352,7 +1358,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables 
*tables)
 
     ssdt = tables_blob->len;
     acpi_add_table(table_offsets, tables_blob);
-    build_ssdt(tables_blob, tables->linker, &cpu, &pm, &misc, &pci,
+    build_ssdt(tables->table_data, &cpu, &pm, &misc, &pci,
                guest_info);
     aml_len += tables_blob->len - ssdt;
 
-- 
1.8.3.1