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acpi: add aml_scope() term

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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>
This commit is contained in:
Igor Mammedov 2015-02-18 19:14:15 +00:00 committed by Michael S. Tsirkin
parent 0f2707e4e7
commit 2ef7c27b78
2 changed files with 23 additions and 0 deletions
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20
hw/acpi/aml-build.c
View File

@ -271,6 +271,15 @@ static Aml *aml_alloc(void)
return var; return var;
} }
static Aml *aml_bundle(uint8_t op, AmlBlockFlags flags)
{
Aml *var = aml_alloc();
var->op = op;
var->block_flags = flags;
return var;
}
static void aml_free(gpointer data) static void aml_free(gpointer data)
{ {
Aml *var = data; Aml *var = data;
@ -335,3 +344,14 @@ void aml_append(Aml *parent_ctx, Aml *child)
} }
build_append_array(parent_ctx->buf, child->buf); build_append_array(parent_ctx->buf, child->buf);
} }
/* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */
Aml *aml_scope(const char *name_format, ...)
{
va_list ap;
Aml *var = aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE);
va_start(ap, name_format);
build_append_namestringv(var->buf, name_format, ap);
va_end(ap);
return var;
}

3
include/hw/acpi/aml-build.h
View File

@ -59,6 +59,9 @@ void free_aml_allocator(void);
*/ */
void aml_append(Aml *parent_ctx, Aml *child); void aml_append(Aml *parent_ctx, Aml *child);
/* Block AML object primitives */
Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
/* other helpers */ /* other helpers */
GArray *build_alloc_array(void); GArray *build_alloc_array(void);
void build_free_array(GArray *array); void build_free_array(GArray *array);