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authorXiao Guangrong <guangrong.xiao@linux.intel.com>2016-03-01 18:56:03 +0800
committerMichael S. Tsirkin <mst@redhat.com>2016-03-11 14:54:27 +0200
commit39b6dbd8d7bbaa864ce42dcdcffe79313de9f2d6 (patch)
tree73c48417f1ba135e9c14b2d11e835304c3aff7de /hw/acpi
parenta648c137383d84bc4f95696e5293978d9541a26e (diff)
acpi: add aml_create_field()
It will be used by nvdimm acpi Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi')
-rw-r--r--hw/acpi/aml-build.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 667553514e..45b7f0abed 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -997,6 +997,20 @@ Aml *create_field_common(int opcode, Aml *srcbuf, Aml *index, const char *name)
return var;
}
+/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateField */
+Aml *aml_create_field(Aml *srcbuf, Aml *bit_index, Aml *num_bits,
+ const char *name)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x13); /* CreateFieldOp */
+ aml_append(var, srcbuf);
+ aml_append(var, bit_index);
+ aml_append(var, num_bits);
+ build_append_namestring(var->buf, "%s", name);
+ return var;
+}
+
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */
Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name)
{