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| author | Michael S. Tsirkin | 2017-02-28 15:13:28 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2017-03-02 06:29:10 +0100 |
| commit | b3c782db2004eaba2da24ba0880b55852c1d8e0b (patch) | |
| tree | 9d6e097de04db45efd1494d2aaf6b5644ff945a9 /hw/i386/acpi-build.c | |
| parent | virtio: unbreak virtio-pci with IOMMU after caching ring translations (diff) | |
| download | qemu-b3c782db2004eaba2da24ba0880b55852c1d8e0b.tar.gz qemu-b3c782db2004eaba2da24ba0880b55852c1d8e0b.tar.xz qemu-b3c782db2004eaba2da24ba0880b55852c1d8e0b.zip | |
acpi: simplify _OSC
Our _OSC method has a bunch of unused code loading data
into external CTRL and SUPP fields which are then never
used. Drop this in favor of a single local variable.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index db04cf5362..efbbfcb594 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1804,7 +1804,7 @@ static Aml *build_q35_osc_method(void) Aml *else_ctx; Aml *method; Aml *a_cwd1 = aml_name("CDW1"); - Aml *a_ctrl = aml_name("CTRL"); + Aml *a_ctrl = aml_local(0); method = aml_method("_OSC", 4, AML_NOTSERIALIZED); aml_append(method, aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1")); @@ -1814,7 +1814,6 @@ static Aml *build_q35_osc_method(void) aml_append(if_ctx, aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2")); aml_append(if_ctx, aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3")); - aml_append(if_ctx, aml_store(aml_name("CDW2"), aml_name("SUPP"))); aml_append(if_ctx, aml_store(aml_name("CDW3"), a_ctrl)); /* @@ -1899,8 +1898,6 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03"))); aml_append(dev, aml_name_decl("_ADR", aml_int(0))); aml_append(dev, aml_name_decl("_UID", aml_int(1))); - aml_append(dev, aml_name_decl("SUPP", aml_int(0))); - aml_append(dev, aml_name_decl("CTRL", aml_int(0))); aml_append(dev, build_q35_osc_method()); aml_append(sb_scope, dev); aml_append(dsdt, sb_scope); |