ACPI: Add vmgenid blob storage to the build tables

This allows them to be centrally initialized and destroyed

The "AcpiBuildTables.vmgenid" array will be used to construct the
"etc/vmgenid_guid" fw_cfg blob.

Its contents will be linked into fw_cfg after being built on the
pc_machine_done() -> acpi_setup() -> acpi_build() call path, and dropped
without use on the subsequent, guest triggered, acpi_build_update() ->
acpi_build() call path.

Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index b2a1e40..c6f2032 100644 (file)
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1559,6 +1559,7 @@ 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->vmgenid = g_array_new(false, true /* clear */, 1);
     tables->linker = bios_linker_loader_init();
 }
 
@@ -1568,6 +1569,7 @@ void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
     g_array_free(tables->rsdp, true);
     g_array_free(tables->table_data, true);
     g_array_free(tables->tcpalog, mfre);
+    g_array_free(tables->vmgenid, mfre);
 }
 
 /* Build rsdt table */

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 559326c..00c21f1 100644 (file)
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -210,6 +210,7 @@ struct AcpiBuildTables {
     GArray *table_data;
     GArray *rsdp;
     GArray *tcpalog;
+    GArray *vmgenid;
     BIOSLinker *linker;
 } AcpiBuildTables;