acpi: x86: build_dsdt: use acpi_table_begin()/acpi_table_end() instead of build_header()
it replaces error-prone pointer arithmetic for build_header() API,
with 2 calls to start and finish table creation,
which hides offsets magic from API user.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20210924122802.1455362-14-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index f4d6ae3..e17451b 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1405,12 +1405,12 @@
#endif
int i;
VMBusBridge *vmbus_bridge = vmbus_bridge_find();
+ AcpiTable table = { .sig = "DSDT", .rev = 1, .oem_id = x86ms->oem_id,
+ .oem_table_id = x86ms->oem_table_id };
+ acpi_table_begin(&table, table_data);
dsdt = init_aml_allocator();
- /* Reserve space for header */
- acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader));
-
build_dbg_aml(dsdt);
if (misc->is_piix4) {
sb_scope = aml_scope("_SB");
@@ -1867,9 +1867,7 @@
/* copy AML table into ACPI tables blob and patch header there */
g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
- build_header(linker, table_data,
- (void *)(table_data->data + table_data->len - dsdt->buf->len),
- "DSDT", dsdt->buf->len, 1, x86ms->oem_id, x86ms->oem_table_id);
+ acpi_table_end(linker, &table);
free_aml_allocator();
}
