x86: Add DSDT table for supporting ACPI on QEMU
The DSDT table contains a bytecode that is executed by a driver in the kernel.
Signed-off-by: Saket Sinha <saket.sinha89@gmail.com>
Tested with QEMU '-M q35'
Tested-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/cpu/qemu/acpi/pci-crs.asl b/arch/x86/cpu/qemu/acpi/pci-crs.asl
new file mode 100644
index 0000000..a336dce
--- /dev/null
+++ b/arch/x86/cpu/qemu/acpi/pci-crs.asl
@@ -0,0 +1,61 @@
+/* PCI CRS (current resources) definition. */
+Scope(\_SB.PCI0) {
+
+ Name(CRES, ResourceTemplate() {
+ WordBusNumber(ResourceProducer, MinFixed, MaxFixed, PosDecode,
+ 0x0000, /* Address Space Granularity */
+ 0x0000, /* Address Range Minimum */
+ 0x00ff, /* Address Range Maximum */
+ 0x0000, /* Address Translation Offset */
+ 0x0100, /* Address Length */
+ ,, )
+ IO(Decode16,
+ 0x0cf8, /* Address Range Minimum */
+ 0x0cf8, /* Address Range Maximum */
+ 0x01, /* Address Alignment */
+ 0x08, /* Address Length */
+ )
+ WordIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+ 0x0000, /* Address Space Granularity */
+ 0x0000, /* Address Range Minimum */
+ 0x0cf7, /* Address Range Maximum */
+ 0x0000, /* Address Translation Offset */
+ 0x0cf8, /* Address Length */
+ ,, , TypeStatic)
+ WordIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+ 0x0000, /* Address Space Granularity */
+ 0x0d00, /* Address Range Minimum */
+ 0xffff, /* Address Range Maximum */
+ 0x0000, /* Address Translation Offset */
+ 0xf300, /* Address Length */
+ ,, , TypeStatic)
+ DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite,
+ 0x00000000, /* Address Space Granularity */
+ 0x000a0000, /* Address Range Minimum */
+ 0x000bffff, /* Address Range Maximum */
+ 0x00000000, /* Address Translation Offset */
+ 0x00020000, /* Address Length */
+ ,, , AddressRangeMemory, TypeStatic)
+ DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed, NonCacheable, ReadWrite,
+ 0x00000000, /* Address Space Granularity */
+ 0xe0000000, /* Address Range Minimum */
+ 0xfebfffff, /* Address Range Maximum */
+ 0x00000000, /* Address Translation Offset */
+ 0x1ec00000, /* Address Length */
+ ,, PW32, AddressRangeMemory, TypeStatic)
+ })
+
+ Name(CR64, ResourceTemplate() {
+ QWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite,
+ 0x00000000, /* Address Space Granularity */
+ 0x80000000, /* Address Range Minimum */
+ 0xffffffff, /* Address Range Maximum */
+ 0x00000000, /* Address Translation Offset */
+ 0x80000000, /* Address Length */
+ ,, PW64, AddressRangeMemory, TypeStatic)
+ })
+
+ Method(_CRS, 0) {
+ Return (CRES)
+ }
+}