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acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors

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NB:
We do not expect any functional change in any ACPI tables with this
change. It's only a refactoring.

NB2:
Some targets (or1k) do not support acpi and CONFIG_ACPI is off for them.
However, modules are reused between all architectures so CONFIG_ACPI is
on.  For those architectures, dummy stub function definitions help to
resolve symbols.  This change uses more of these and so it adds a couple
of dummy stub definitions so that symbols for those can be resolved.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
CC: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20221107152744.868434-1-ani@anisinha.ca>
This commit is contained in:
Igor Mammedov 2022-10-17 12:21:36 +02:00 • committed by Michael S. Tsirkin
parent bd437c960f
commit cfead31326
7 changed files with 67 additions and 25 deletions
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26
hw/display/acpi-vga.c Normal file
View file

@ -0,0 +1,26 @@
#include "qemu/osdep.h"
#include "hw/acpi/acpi_aml_interface.h"
#include "hw/pci/pci.h"
#include "vga_int.h"
void build_vga_aml(AcpiDevAmlIf *adev, Aml *scope)
{
int s3d = 0;
Aml *method;
if (object_dynamic_cast(OBJECT(adev), "qxl-vga")) {
s3d = 3;
}
method = aml_method("_S1D", 0, AML_NOTSERIALIZED);
aml_append(method, aml_return(aml_int(0)));
aml_append(scope, method);
method = aml_method("_S2D", 0, AML_NOTSERIALIZED);
aml_append(method, aml_return(aml_int(0)));
aml_append(scope, method);
method = aml_method("_S3D", 0, AML_NOTSERIALIZED);
aml_append(method, aml_return(aml_int(s3d)));
aml_append(scope, method);
}