/* Bochs/QEMU ACPI DSDT ASL definition */ /* SPDX-License-Identifier: GPL-2.0-only */ /* * Based on acpi-dsdt.dsl, but heavily modified for q35 chipset. */ #include DefinitionBlock ( "dsdt.aml", "DSDT", ACPI_DSDT_REV_1, OEM_ID, ACPI_TABLE_CREATOR, 0x2 // OEM Revision ) { #include #include "../qemu-i440fx/acpi/dbug.asl" Scope(\_SB) { OperationRegion(PCST, SystemIO, 0xae00, 0x0c) OperationRegion(PCSB, SystemIO, 0xae0c, 0x01) Field(PCSB, AnyAcc, NoLock, WriteAsZeros) { PCIB, 8, } } /**************************************************************** * PCI Bus definition ****************************************************************/ Scope(\_SB) { Device(PCI0) { Name(_HID, EisaId("PNP0A08")) Name(_CID, EisaId("PNP0A03")) Name(_UID, 1) // _OSC: based on sample of ACPI3.0b spec Name(SUPP, 0) // PCI _OSC Support Field value Name(CTRL, 0) // PCI _OSC Control Field value Method(_OSC, 4) { // Create DWORD-addressable fields from the Capabilities Buffer CreateDWordField(Arg3, 0, CDW1) // Check for proper UUID If (Arg0 == ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")) { // Create DWORD-addressable fields from the Capabilities Buffer CreateDWordField(Arg3, 4, CDW2) CreateDWordField(Arg3, 8, CDW3) // Save Capabilities DWORD2 & 3 SUPP = CDW2 CTRL = CDW3 // Always allow native PME, AER (no dependencies) // Never allow SHPC (no SHPC controller in this system) CTRL &= 0x1D If (Arg1 != 1) { // Unknown revision CDW1 |= 0x08 } If (CDW3 != CTRL) { // Capabilities bits were masked CDW1 |= 0x10 } // Update DWORD3 in the buffer CDW3 = CTRL } Else { CDW1 |= 4 // Unrecognized UUID } Return (Arg3) } } } #include "../qemu-i440fx/acpi/pci-crs.asl" #include "../qemu-i440fx/acpi/hpet.asl" /**************************************************************** * VGA ****************************************************************/ Scope(\_SB.PCI0) { Device(VGA) { Name(_ADR, 0x00010000) Method(_S1D, 0, NotSerialized) { Return (0x00) } Method(_S2D, 0, NotSerialized) { Return (0x00) } Method(_S3D, 0, NotSerialized) { Return (0x00) } } } /**************************************************************** * LPC ISA bridge ****************************************************************/ Scope(\_SB.PCI0) { /* PCI D31:f0 LPC ISA bridge */ Device(ISA) { /* PCI D31:f0 */ Name(_ADR, 0x001f0000) /* ICH9 PCI to ISA irq remapping */ OperationRegion(PIRQ, PCI_Config, 0x60, 0x0C) OperationRegion(LPCD, PCI_Config, 0x80, 0x2) Field(LPCD, AnyAcc, NoLock, Preserve) { COMA, 3, , 1, COMB, 3, Offset(0x01), LPTD, 2, , 2, FDCD, 2 } OperationRegion(LPCE, PCI_Config, 0x82, 0x2) Field(LPCE, AnyAcc, NoLock, Preserve) { CAEN, 1, CBEN, 1, LPEN, 1, FDEN, 1 } } } #include "../qemu-i440fx/acpi/isa.asl" /**************************************************************** * PCI IRQs ****************************************************************/ /* Zero => PIC mode, One => APIC Mode */ Name(\PICM, Zero) Method(\_PIC, 1, NotSerialized) { \PICM = Arg0 } Scope(\_SB) { Scope(PCI0) { #define prt_slot_lnk(nr, lnk0, lnk1, lnk2, lnk3) \ Package() { nr##ffff, 0, lnk0, 0 }, \ Package() { nr##ffff, 1, lnk1, 0 }, \ Package() { nr##ffff, 2, lnk2, 0 }, \ Package() { nr##ffff, 3, lnk3, 0 } #define prt_slot_lnkA(nr) prt_slot_lnk(nr, LNKA, LNKB, LNKC, LNKD) #define prt_slot_lnkB(nr) prt_slot_lnk(nr, LNKB, LNKC, LNKD, LNKA) #define prt_slot_lnkC(nr) prt_slot_lnk(nr, LNKC, LNKD, LNKA, LNKB) #define prt_slot_lnkD(nr) prt_slot_lnk(nr, LNKD, LNKA, LNKB, LNKC) #define prt_slot_lnkE(nr) prt_slot_lnk(nr, LNKE, LNKF, LNKG, LNKH) #define prt_slot_lnkF(nr) prt_slot_lnk(nr, LNKF, LNKG, LNKH, LNKE) #define prt_slot_lnkG(nr) prt_slot_lnk(nr, LNKG, LNKH, LNKE, LNKF) #define prt_slot_lnkH(nr) prt_slot_lnk(nr, LNKH, LNKE, LNKF, LNKG) Name(PRTP, Package() { prt_slot_lnkE(0x0000), prt_slot_lnkF(0x0001), prt_slot_lnkG(0x0002), prt_slot_lnkH(0x0003), prt_slot_lnkE(0x0004), prt_slot_lnkF(0x0005), prt_slot_lnkG(0x0006), prt_slot_lnkH(0x0007), prt_slot_lnkE(0x0008), prt_slot_lnkF(0x0009), prt_slot_lnkG(0x000a), prt_slot_lnkH(0x000b), prt_slot_lnkE(0x000c), prt_slot_lnkF(0x000d), prt_slot_lnkG(0x000e), prt_slot_lnkH(0x000f), prt_slot_lnkE(0x0010), prt_slot_lnkF(0x0011), prt_slot_lnkG(0x0012), prt_slot_lnkH(0x0013), prt_slot_lnkE(0x0014), prt_slot_lnkF(0x0015), prt_slot_lnkG(0x0016), prt_slot_lnkH(0x0017), prt_slot_lnkE(0x0018), /* INTA -> PIRQA for slot 25 - 31 see the default value of DIR */ prt_slot_lnkA(0x0019), prt_slot_lnkA(0x001a), prt_slot_lnkA(0x001b), prt_slot_lnkA(0x001c), prt_slot_lnkA(0x001d), /* PCIe->PCI bridge. use PIRQ[E-H] */ prt_slot_lnkE(0x001e), prt_slot_lnkA(0x001f) }) #define prt_slot_gsi(nr, gsi0, gsi1, gsi2, gsi3) \ Package() { nr##ffff, 0, gsi0, 0 }, \ Package() { nr##ffff, 1, gsi1, 0 }, \ Package() { nr##ffff, 2, gsi2, 0 }, \ Package() { nr##ffff, 3, gsi3, 0 } #define prt_slot_gsiA(nr) prt_slot_gsi(nr, GSIA, GSIB, GSIC, GSID) #define prt_slot_gsiB(nr) prt_slot_gsi(nr, GSIB, GSIC, GSID, GSIA) #define prt_slot_gsiC(nr) prt_slot_gsi(nr, GSIC, GSID, GSIA, GSIB) #define prt_slot_gsiD(nr) prt_slot_gsi(nr, GSID, GSIA, GSIB, GSIC) #define prt_slot_gsiE(nr) prt_slot_gsi(nr, GSIE, GSIF, GSIG, GSIH) #define prt_slot_gsiF(nr) prt_slot_gsi(nr, GSIF, GSIG, GSIH, GSIE) #define prt_slot_gsiG(nr) prt_slot_gsi(nr, GSIG, GSIH, GSIE, GSIF) #define prt_slot_gsiH(nr) prt_slot_gsi(nr, GSIH, GSIE, GSIF, GSIG) Name(PRTA, Package() { prt_slot_gsiE(0x0000), prt_slot_gsiF(0x0001), prt_slot_gsiG(0x0002), prt_slot_gsiH(0x0003), prt_slot_gsiE(0x0004), prt_slot_gsiF(0x0005), prt_slot_gsiG(0x0006), prt_slot_gsiH(0x0007), prt_slot_gsiE(0x0008), prt_slot_gsiF(0x0009), prt_slot_gsiG(0x000a), prt_slot_gsiH(0x000b), prt_slot_gsiE(0x000c), prt_slot_gsiF(0x000d), prt_slot_gsiG(0x000e), prt_slot_gsiH(0x000f), prt_slot_gsiE(0x0010), prt_slot_gsiF(0x0011), prt_slot_gsiG(0x0012), prt_slot_gsiH(0x0013), prt_slot_gsiE(0x0014), prt_slot_gsiF(0x0015), prt_slot_gsiG(0x0016), prt_slot_gsiH(0x0017), prt_slot_gsiE(0x0018), /* INTA -> PIRQA for slot 25 - 31, but 30 see the default value of DIR */ prt_slot_gsiA(0x0019), prt_slot_gsiA(0x001a), prt_slot_gsiA(0x001b), prt_slot_gsiA(0x001c), prt_slot_gsiA(0x001d), /* PCIe->PCI bridge. use PIRQ[E-H] */ prt_slot_gsiE(0x001e), prt_slot_gsiA(0x001f) }) Method(_PRT, 0, NotSerialized) { /* PCI IRQ routing table, example from ACPI 2.0a specification, section 6.2.8.1 */ /* Note: we provide the same info as the PCI routing table of the Bochs BIOS */ If (\PICM == 0) { Return (PRTP) } Else { Return (PRTA) } } } Field(PCI0.ISA.PIRQ, ByteAcc, NoLock, Preserve) { PRQA, 8, PRQB, 8, PRQC, 8, PRQD, 8, Offset(0x08), PRQE, 8, PRQF, 8, PRQG, 8, PRQH, 8 } Method(IQST, 1, NotSerialized) { // _STA method - get status If (0x80 & Arg0) { Return (0x09) } Return (0x0B) } Method(IQCR, 1, Serialized) { // _CRS method - get current settings Name(PRR0, ResourceTemplate() { Interrupt(, Level, ActiveHigh, Shared) { 0 } }) CreateDWordField(PRR0, 0x05, PRRI) PRRI = Arg0 & 0x0F Return (PRR0) } #define define_link(link, uid, reg) \ Device(link) { \ Name(_HID, EISAID("PNP0C0F")) \ Name(_UID, uid) \ Name(_PRS, ResourceTemplate() { \ Interrupt(, Level, ActiveHigh, Shared) { \ 5, 10, 11 \ } \ }) \ Method(_STA, 0, NotSerialized) { \ Return (IQST(reg)) \ } \ Method(_DIS, 0, NotSerialized) { \ reg |= 0x80 \ } \ Method(_CRS, 0, NotSerialized) { \ Return (IQCR(reg)) \ } \ Method(_SRS, 1, NotSerialized) { \ CreateDWordField(Arg0, 0x05, PRRI) \ reg = PRRI \ } \ } define_link(LNKA, 0, PRQA) define_link(LNKB, 1, PRQB) define_link(LNKC, 2, PRQC) define_link(LNKD, 3, PRQD) define_link(LNKE, 4, PRQE) define_link(LNKF, 5, PRQF) define_link(LNKG, 6, PRQG) define_link(LNKH, 7, PRQH) #define define_gsi_link(link, uid, gsi) \ Device(link) { \ Name(_HID, EISAID("PNP0C0F")) \ Name(_UID, uid) \ Name(_PRS, ResourceTemplate() { \ Interrupt(, Level, ActiveHigh, Shared) { \ gsi \ } \ }) \ Name(_CRS, ResourceTemplate() { \ Interrupt(, Level, ActiveHigh, Shared) { \ gsi \ } \ }) \ Method(_SRS, 1, NotSerialized) { \ } \ } define_gsi_link(GSIA, 0, 0x10) define_gsi_link(GSIB, 0, 0x11) define_gsi_link(GSIC, 0, 0x12) define_gsi_link(GSID, 0, 0x13) define_gsi_link(GSIE, 0, 0x14) define_gsi_link(GSIF, 0, 0x15) define_gsi_link(GSIG, 0, 0x16) define_gsi_link(GSIH, 0, 0x17) } /**************************************************************** * General purpose events ****************************************************************/ Scope(\_GPE) { Name(_HID, "ACPI0006") Method(_L00) { } Method(_L01) { } Method(_L02) { } Method(_L03) { } Method(_L04) { } Method(_L05) { } Method(_L06) { } Method(_L07) { } Method(_L08) { } Method(_L09) { } Method(_L0A) { } Method(_L0B) { } Method(_L0C) { } Method(_L0D) { } Method(_L0E) { } Method(_L0F) { } } }