2a3282c68e
CXL 2.0 specification adds 2 new dwords to the existing _OSC definition
from PCIe. The new dwords are accessed with a new uuid. This
implementation supports what is in the specification.
iasl -d decodes the result of this patch as:
Name (SUPP, Zero)
Name (CTRL, Zero)
Name (SUPC, Zero)
Name (CTRC, Zero)
Method (_OSC, 4, NotSerialized) // _OSC: Operating System Capabilities
{
CreateDWordField (Arg3, Zero, CDW1)
If (((Arg0 == ToUUID ("33db4d5b-1ff7-401c-9657-7441c03dd766") /* PCI Host Bridge Device */) || (Arg0 == ToUUID ("68f2d50b-c469-4d8a-bd3d-941a103fd3fc") /* Unknown UUID */)))
{
CreateDWordField (Arg3, 0x04, CDW2)
CreateDWordField (Arg3, 0x08, CDW3)
Local0 = CDW3 /* \_SB_.PC0C._OSC.CDW3 */
Local0 &= 0x1F
If ((Arg1 != One))
{
CDW1 |= 0x08
}
If ((CDW3 != Local0))
{
CDW1 |= 0x10
}
SUPP = CDW2 /* \_SB_.PC0C._OSC.CDW2 */
CTRL = CDW3 /* \_SB_.PC0C._OSC.CDW3 */
CDW3 = Local0
If ((Arg0 == ToUUID ("68f2d50b-c469-4d8a-bd3d-941a103fd3fc") /* Unknown UUID */))
{
CreateDWordField (Arg3, 0x0C, CDW4)
CreateDWordField (Arg3, 0x10, CDW5)
SUPC = CDW4 /* \_SB_.PC0C._OSC.CDW4 */
CTRC = CDW5 /* \_SB_.PC0C._OSC.CDW5 */
CDW5 |= One
}
Return (Arg3)
}
Else
{
CDW1 |= 0x04
Return (Arg3)
}
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20220429144110.25167-25-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
39 lines
2.3 KiB
Meson
39 lines
2.3 KiB
Meson
acpi_ss = ss.source_set()
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acpi_ss.add(files(
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'acpi_interface.c',
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'aml-build.c',
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'bios-linker-loader.c',
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'core.c',
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'utils.c',
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))
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acpi_ss.add(when: 'CONFIG_ACPI_CPU_HOTPLUG', if_true: files('cpu.c', 'cpu_hotplug.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_CPU_HOTPLUG', if_false: files('acpi-cpu-hotplug-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_MEMORY_HOTPLUG', if_true: files('memory_hotplug.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_MEMORY_HOTPLUG', if_false: files('acpi-mem-hotplug-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_NVDIMM', if_true: files('nvdimm.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_NVDIMM', if_false: files('acpi-nvdimm-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_PCI', if_true: files('pci.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_CXL', if_true: files('cxl.c'), if_false: files('cxl-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_VMGENID', if_true: files('vmgenid.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_HW_REDUCED', if_true: files('generic_event_device.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_HMAT', if_true: files('hmat.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_APEI', if_true: files('ghes.c'), if_false: files('ghes-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_PIIX4', if_true: files('piix4.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_PCIHP', if_true: files('pcihp.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_PCIHP', if_false: files('acpi-pci-hotplug-stub.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_VIOT', if_true: files('viot.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_X86_ICH', if_true: files('ich9.c', 'tco.c'))
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acpi_ss.add(when: 'CONFIG_ACPI_ERST', if_true: files('erst.c'))
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acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'), if_false: files('ipmi-stub.c'))
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acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
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if have_tpm
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acpi_ss.add(files('tpm.c'))
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endif
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softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c'))
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softmmu_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
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softmmu_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',
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'acpi-x86-stub.c', 'ipmi-stub.c', 'ghes-stub.c',
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'acpi-mem-hotplug-stub.c', 'acpi-cpu-hotplug-stub.c',
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'acpi-pci-hotplug-stub.c', 'acpi-nvdimm-stub.c',
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'cxl-stub.c'))
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