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[PULL,36/55] acpi: add aml_sizeof

Message ID 1450803119-4223-37-git-send-email-mst@redhat.com
State New
Headers show

Commit Message

Michael S. Tsirkin Dec. 22, 2015, 4:54 p.m. UTC 
From: Xiao Guangrong <guangrong.xiao@linux.intel.com>

Implement SizeOf term which is used by NVDIMM _DSM method in later patch

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/acpi/aml-build.h | 1 +
 hw/acpi/aml-build.c         | 8 ++++++++
 2 files changed, 9 insertions(+)
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Patch

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 89fb15e..b8a0ad2 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -308,6 +308,7 @@  Aml *aml_varpackage(uint32_t num_elements);
 Aml *aml_touuid(const char *uuid);
 Aml *aml_unicode(const char *str);
 Aml *aml_derefof(Aml *arg);
+Aml *aml_sizeof(Aml *arg);
 
 void
 build_header(GArray *linker, GArray *table_data,
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 501a988..867afbe 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1248,6 +1248,14 @@  Aml *aml_derefof(Aml *arg)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSizeOf */
+Aml *aml_sizeof(Aml *arg)
+{
+    Aml *var = aml_opcode(0x87 /* SizeOfOp */);
+    aml_append(var, arg);
+    return var;
+}
+
 void
 build_header(GArray *linker, GArray *table_data,
              AcpiTableHeader *h, const char *sig, int len, uint8_t rev,