Dynamic loading/unloading of tables.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
include/hw/acpi/aml-build.h | 2 ++
hw/acpi/aml-build.c | 21 +++++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 7cf2cf64bf..f764f71e25 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -381,6 +381,8 @@ Aml *aml_derefof(Aml *arg);
Aml *aml_sizeof(Aml *arg);
Aml *aml_concatenate(Aml *source1, Aml *source2, Aml *target);
Aml *aml_object_type(Aml *object);
+Aml *aml_load(const char *name, Aml *ddbhandle);
+Aml *aml_unload(Aml *ddbhandle);
void build_append_int_noprefix(GArray *table, uint64_t value, int size);
void
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 7165f19585..ce691c1618 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1552,6 +1552,27 @@ Aml *aml_object_type(Aml *object)
return var;
}
+/* ACPI 2.0: 17.2.4.3 Type 1 Opcodes Encoding: DefLoad */
+Aml *aml_load(const char *name, Aml *ddbhandle)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x20); /* LoadOp */
+ aml_append(var, aml_name("%s", name));
+ aml_append(var, ddbhandle);
+ return var;
+}
+
+/* ACPI 2.0: 17.2.4.3 Type 1 Opcodes Encoding: DefUnload */
+Aml *aml_unload(Aml *ddbhandle)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x2A); /* UnloadOp */
+ aml_append(var, ddbhandle);
+ return var;
+}
+
void
build_header(BIOSLinker *linker, GArray *table_data,
AcpiTableHeader *h, const char *sig, int len, uint8_t rev,
--
MST
