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acpi: add aml_derefof

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Implement DeRefOf 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>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xiao Guangrong 2015-12-10 00:40:56 +01:00 committed by Michael S. Tsirkin
parent 70d1fb9c0b
commit 95cb066190
2 changed files with 9 additions and 0 deletions
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8
hw/acpi/aml-build.c
View File

@ -1240,6 +1240,14 @@ Aml *aml_unicode(const char *str)
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDerefOf */
Aml *aml_derefof(Aml *arg)
{
Aml *var = aml_opcode(0x83 /* DerefOfOp */);
aml_append(var, arg);
return var;
}
void
build_header(GArray *linker, GArray *table_data,
AcpiTableHeader *h, const char *sig, int len, uint8_t rev,

1
include/hw/acpi/aml-build.h
View File

@ -307,6 +307,7 @@ Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name);
Aml *aml_varpackage(uint32_t num_elements);
Aml *aml_touuid(const char *uuid);
Aml *aml_unicode(const char *str);
Aml *aml_derefof(Aml *arg);
void
build_header(GArray *linker, GArray *table_data,