path: root/OvmfPkg/AcpiTables/Dsdt.asl

/** @file
  Contains root level name space objects for the platform

  Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials are
  licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

DefinitionBlock ("Dsdt.aml", "DSDT", 1, "INTEL ", "OVMF    ", 4) {
  //
  // System Sleep States
  //
  // We build S3 and S4 with GetSuspendStates() in
  // "OvmfPkg/AcpiPlatformDxe/Qemu.c".
  //
  Name (\_S0, Package () {5, 0, 0, 0}) // Working
  Name (\_S5, Package () {0, 0, 0, 0}) // Soft Off

  //
  //  System Bus
  //
  Scope (\_SB) {
    //
    // PCI Root Bridge
    //
    Device (PCI0) {
      Name (_HID, EISAID ("PNP0A03"))
      Name (_ADR, 0x00000000)
      Name (_BBN, 0x00)
      Name (_UID, 0x00)

      //
      // BUS, I/O, and MMIO resources
      //
      Name (CRES, ResourceTemplate () {
        WORDBusNumber (          // Bus number resource (0); the bridge produces bus numbers for its subsequent buses
          ResourceProducer,      // bit 0 of general flags is 1
          MinFixed,              // Range is fixed
          MaxFixed,              // Range is fixed
          PosDecode,             // PosDecode
          0x0000,                // Granularity
          0x0000,                // Min
          0x00FF,                // Max
          0x0000,                // Translation
          0x0100                 // Range Length = Max-Min+1
          )

        IO (Decode16, 0xCF8, 0xCF8, 0x01, 0x08)       //Consumed resource (0xCF8-0xCFF)

        WORDIO (                 // Consumed-and-produced resource (all I/O below CF8)
          ResourceProducer,      // bit 0 of general flags is 0
          MinFixed,              // Range is fixed
          MaxFixed,              // Range is fixed
          PosDecode,
          EntireRange,
          0x0000,                // Granularity
          0x0000,                // Min
          0x0CF7,                // Max
          0x0000,                // Translation
          0x0CF8                 // Range Length
          )

        WORDIO (                 // Consumed-and-produced resource (all I/O above CFF)
          ResourceProducer,      // bit 0 of general flags is 0
          MinFixed,              // Range is fixed
          MaxFixed,              // Range is fixed
          PosDecode,
          EntireRange,
          0x0000,                // Granularity
          0x0D00,                // Min
          0xFFFF,                // Max
          0x0000,                // Translation
          0xF300                 // Range Length
          )

        DWORDMEMORY (            // Descriptor for legacy VGA video RAM
          ResourceProducer,      // bit 0 of general flags is 0
          PosDecode,
          MinFixed,              // Range is fixed
          MaxFixed,              // Range is Fixed
          Cacheable,
          ReadWrite,
          0x00000000,            // Granularity
          0x000A0000,            // Min
          0x000BFFFF,            // Max
          0x00000000,            // Translation
          0x00020000             // Range Length
          )

        DWORDMEMORY (            // Descriptor for 32-bit MMIO
          ResourceProducer,      // bit 0 of general flags is 0
          PosDecode,
          MinFixed,              // Range is fixed
          MaxFixed,              // Range is Fixed
          NonCacheable,
          ReadWrite,
          0x00000000,            // Granularity
          0xF8000000,            // Min
          0xFFFBFFFF,            // Max
          0x00000000,            // Translation
          0x07FC0000,            // Range Length
          ,                      // ResourceSourceIndex
          ,                      // ResourceSource
          PW32                   // DescriptorName
          )
      })

      Name (CR64, ResourceTemplate () {
        QWordMemory (            // Descriptor for 64-bit MMIO
            ResourceProducer,    // bit 0 of general flags is 0
            PosDecode,
            MinFixed,            // Range is fixed
            MaxFixed,            // Range is Fixed
            Cacheable,
            ReadWrite,
            0x00000000,          // Granularity
            0x8000000000,        // Min
            0xFFFFFFFFFF,        // Max
            0x00000000,          // Translation
            0x8000000000,        // Range Length
            ,                    // ResourceSourceIndex
            ,                    // ResourceSource
            PW64                 // DescriptorName
            )
      })

      Method (_CRS, 0) {
        //
        // see the FIRMWARE_DATA structure in "OvmfPkg/AcpiPlatformDxe/Qemu.c"
        //
        External (FWDT, OpRegionObj)
        Field(FWDT, QWordAcc, NoLock, Preserve) {
          P0S, 64,               // PciWindow32.Base
          P0E, 64,               // PciWindow32.End
          P0L, 64,               // PciWindow32.Length
          P1S, 64,               // PciWindow64.Base
          P1E, 64,               // PciWindow64.End
          P1L, 64                // PciWindow64.Length
        }
        Field(FWDT, DWordAcc, NoLock, Preserve) {
          P0SL, 32,              // PciWindow32.Base,   low  32 bits
          P0SH, 32,              // PciWindow32.Base,   high 32 bits
          P0EL, 32,              // PciWindow32.End,    low  32 bits
          P0EH, 32,              // PciWindow32.End,    high 32 bits
          P0LL, 32,              // PciWindow32.Length, low  32 bits
          P0LH, 32,              // PciWindow32.Length, high 32 bits
          P1SL, 32,              // PciWindow64.Base,   low  32 bits
          P1SH, 32,              // PciWindow64.Base,   high 32 bits
          P1EL, 32,              // PciWindow64.End,    low  32 bits
          P1EH, 32,              // PciWindow64.End,    high 32 bits
          P1LL, 32,              // PciWindow64.Length, low  32 bits
          P1LH, 32               // PciWindow64.Length, high 32 bits
        }

        //
        // fixup 32-bit PCI IO window
        //
        CreateDWordField (CRES, \_SB.PCI0.PW32._MIN, PS32)
        CreateDWordField (CRES, \_SB.PCI0.PW32._MAX, PE32)
        CreateDWordField (CRES, \_SB.PCI0.PW32._LEN, PL32)
        Store (P0SL, PS32)
        Store (P0EL, PE32)
        Store (P0LL, PL32)

        If (LAnd (LEqual (P1SL, 0x00), LEqual (P1SH, 0x00))) {
          Return (CRES)
        } Else {
          //
          // fixup 64-bit PCI IO window
          //
          CreateQWordField (CR64, \_SB.PCI0.PW64._MIN, PS64)
          CreateQWordField (CR64, \_SB.PCI0.PW64._MAX, PE64)
          CreateQWordField (CR64, \_SB.PCI0.PW64._LEN, PL64)
          Store (P1S, PS64)
          Store (P1E, PE64)
          Store (P1L, PL64)

          //
          // add window and return result
          //
          ConcatenateResTemplate (CRES, CR64, Local0)
          Return (Local0)
        }
      }

      //
      // PCI Interrupt Routing Table - PIC Mode Only
      //
      Method (_PRT, 0, NotSerialized) {
        Return (
          Package () {
            //
            // Bus 0; Devices 0 to 15
            //
            Package () {0x0000FFFF, 0x00, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0000FFFF, 0x01, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0000FFFF, 0x02, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0000FFFF, 0x03, \_SB.PCI0.LPC.LNKC, 0x00},

            //
            // Bus 0, Device 1, Pin 0 (INTA) is special; it corresponds to the
            // internally generated SCI (System Control Interrupt), which is
            // always routed to GSI 9. By setting the third (= Source) field to
            // zero, we could use the fourth (= Source Index) field to hardwire
            // the pin to GSI 9 directly.
            //
            // That way however, in accordance with the ACPI spec's description
            // of SCI, the interrupt would be treated as "active low,
            // shareable, level", and that doesn't match qemu.
            //
            // In QemuInstallAcpiMadtTable() [OvmfPkg/AcpiPlatformDxe/Qemu.c]
            // we install an Interrupt Override Structure for the identity
            // mapped IRQ#9 / GSI 9 (the corresponding bit being set in
            // Pcd8259LegacyModeEdgeLevel), which describes the correct
            // polarity (active high). As a consequence, some OS'en (eg. Linux)
            // override the default (active low) polarity originating from the
            // _PRT; others (eg. FreeBSD) don't. Therefore we need a separate
            // link device just to specify a polarity that matches the MADT.
            //
            Package () {0x0001FFFF, 0x00, \_SB.PCI0.LPC.LNKS, 0x00},

            Package () {0x0001FFFF, 0x01, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0001FFFF, 0x02, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0001FFFF, 0x03, \_SB.PCI0.LPC.LNKD, 0x00},

            Package () {0x0002FFFF, 0x00, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0002FFFF, 0x01, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0002FFFF, 0x02, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0002FFFF, 0x03, \_SB.PCI0.LPC.LNKA, 0x00},

            Package () {0x0003FFFF, 0x00, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0003FFFF, 0x01, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0003FFFF, 0x02, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0003FFFF, 0x03, \_SB.PCI0.LPC.LNKB, 0x00},

            Package () {0x0004FFFF, 0x00, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0004FFFF, 0x01, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0004FFFF, 0x02, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0004FFFF, 0x03, \_SB.PCI0.LPC.LNKC, 0x00},

            Package () {0x0005FFFF, 0x00, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0005FFFF, 0x01, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0005FFFF, 0x02, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0005FFFF, 0x03, \_SB.PCI0.LPC.LNKD, 0x00},

            Package () {0x0006FFFF, 0x00, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0006FFFF, 0x01, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0006FFFF, 0x02, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0006FFFF, 0x03, \_SB.PCI0.LPC.LNKA, 0x00},

            Package () {0x0007FFFF, 0x00, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0007FFFF, 0x01, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0007FFFF, 0x02, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0007FFFF, 0x03, \_SB.PCI0.LPC.LNKB, 0x00},

            Package () {0x0008FFFF, 0x00, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x0008FFFF, 0x01, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0008FFFF, 0x02, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0008FFFF, 0x03, \_SB.PCI0.LPC.LNKC, 0x00},

            Package () {0x0009FFFF, 0x00, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x0009FFFF, 0x01, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x0009FFFF, 0x02, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x0009FFFF, 0x03, \_SB.PCI0.LPC.LNKD, 0x00},

            Package () {0x000AFFFF, 0x00, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x000AFFFF, 0x01, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x000AFFFF, 0x02, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x000AFFFF, 0x03, \_SB.PCI0.LPC.LNKA, 0x00},

            Package () {0x000BFFFF, 0x00, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x000BFFFF, 0x01, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x000BFFFF, 0x02, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x000BFFFF, 0x03, \_SB.PCI0.LPC.LNKB, 0x00},

            Package () {0x000CFFFF, 0x00, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x000CFFFF, 0x01, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x000CFFFF, 0x02, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x000CFFFF, 0x03, \_SB.PCI0.LPC.LNKC, 0x00},

            Package () {0x000DFFFF, 0x00, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x000DFFFF, 0x01, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x000DFFFF, 0x02, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x000DFFFF, 0x03, \_SB.PCI0.LPC.LNKD, 0x00},

            Package () {0x000EFFFF, 0x00, \_SB.PCI0.LPC.LNKB, 0x00},
            Package () {0x000EFFFF, 0x01, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x000EFFFF, 0x02, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x000EFFFF, 0x03, \_SB.PCI0.LPC.LNKA, 0x00},

            Package () {0x000FFFFF, 0x00, \_SB.PCI0.LPC.LNKC, 0x00},
            Package () {0x000FFFFF, 0x01, \_SB.PCI0.LPC.LNKD, 0x00},
            Package () {0x000FFFFF, 0x02, \_SB.PCI0.LPC.LNKA, 0x00},
            Package () {0x000FFFFF, 0x03, \_SB.PCI0.LPC.LNKB, 0x00}
          }
        )
      }

      //
      // PCI to ISA Bridge (Bus 0, Device 1, Function 0)
      // "Low Pin Count"
      //
      Device (LPC) {
        Name (_ADR, 0x00010000)

        //
        // The SCI cannot be rerouted or disabled with PIRQRC[A:D]; we only
        // need this link device in order to specify the polarity.
        //
        Device (LNKS) {
          Name (_HID, EISAID("PNP0C0F"))
          Name (_UID, 0)

          Name (_STA, 0xB) // 0x1: device present
                           // 0x2: enabled and decoding resources
                           // 0x8: functioning properly

          Method (_SRS, 1, NotSerialized) { /* no-op */ }
          Method (_DIS, 0, NotSerialized) { /* no-op */ }

          Name (_PRS, ResourceTemplate () {
            Interrupt (ResourceConsumer, Level, ActiveHigh, Shared) { 9 }
            //
            // list of IRQs occupied thus far: 9
            //
          })
          Method (_CRS, 0, NotSerialized) { Return (_PRS) }
        }

        //
        // PCI Interrupt Routing Configuration Registers, PIRQRC[A:D]
        //
        OperationRegion (PRR0, PCI_Config, 0x60, 0x04)
        Field (PRR0, ANYACC, NOLOCK, PRESERVE) {
          PIRA, 8,
          PIRB, 8,
          PIRC, 8,
          PIRD, 8
        }

        //
        // _STA method for LNKA, LNKB, LNKC, LNKD
        // Arg0[in]: value of PIRA / PIRB / PIRC / PIRD
        //
        Method (PSTA, 1, NotSerialized) {
          If (And (Arg0, 0x80)) { // disable-bit set?
            Return (0x9)          // "device present" | "functioning properly"
          } Else {
            Return (0xB)          // same | "enabled and decoding resources"
          }
        }

        //
        // _CRS method for LNKA, LNKB, LNKC, LNKD
        // Arg0[in]: value of PIRA / PIRB / PIRC / PIRD
        //
        Method (PCRS, 1, NotSerialized) {
          //
          // create temporary buffer with an Extended Interrupt Descriptor
          // whose single vector defaults to zero
          //
          Name (BUF0, ResourceTemplate () {
              Interrupt (ResourceConsumer, Level, ActiveHigh, Shared){0}
            }
          )

          //
          // define reference to first interrupt vector in buffer
          //
          CreateDWordField (BUF0, 0x05, IRQW)

          //
          // If the disable-bit is clear, overwrite the default zero vector
          // with the value in Arg0 (ie. PIRQRC[A:D]). Reserved bits are read
          // as 0.
          //
          If (LNot (And (Arg0, 0x80))) {
            Store (Arg0, IRQW)
          }
          Return (BUF0)
        }

        //
        // _PRS resource for LNKA, LNKB, LNKC, LNKD
        //
        Name (PPRS, ResourceTemplate () {
          Interrupt (ResourceConsumer, Level, ActiveHigh, Shared) {5, 10, 11}
          //
          // list of IRQs occupied thus far: 9, 5, 10, 11
          //
        })

        //
        // PCI IRQ Link A
        //
        Device (LNKA) {
          Name (_HID, EISAID("PNP0C0F"))
          Name (_UID, 1)

          Method (_STA, 0, NotSerialized) { Return (PSTA (PIRA)) }
          Method (_DIS, 0, NotSerialized) {
            Or (PIRA, 0x80, PIRA) // set disable-bit
          }
          Method (_CRS, 0, NotSerialized) { Return (PCRS (PIRA)) }
          Method (_PRS, 0, NotSerialized) { Return (PPRS) }
          Method (_SRS, 1, NotSerialized) {
            CreateDWordField (Arg0, 0x05, IRQW)
            Store (IRQW, PIRA)
          }
        }

        //
        // PCI IRQ Link B
        //
        Device (LNKB) {
          Name (_HID, EISAID("PNP0C0F"))
          Name (_UID, 2)

          Method (_STA, 0, NotSerialized) { Return (PSTA (PIRB)) }
          Method (_DIS, 0, NotSerialized) {
            Or (PIRB, 0x80, PIRB) // set disable-bit
          }
          Method (_CRS, 0, NotSerialized) { Return (PCRS (PIRB)) }
          Method (_PRS, 0, NotSerialized) { Return (PPRS) }
          Method (_SRS, 1, NotSerialized) {
            CreateDWordField (Arg0, 0x05, IRQW)
            Store (IRQW, PIRB)
          }
        }

        //
        // PCI IRQ Link C
        //
        Device (LNKC) {
          Name (_HID, EISAID("PNP0C0F"))
          Name (_UID, 3)

          Method (_STA, 0, NotSerialized) { Return (PSTA (PIRC)) }
          Method (_DIS, 0, NotSerialized) {
            Or (PIRC, 0x80, PIRC) // set disable-bit
          }
          Method (_CRS, 0, NotSerialized) { Return (PCRS (PIRC)) }
          Method (_PRS, 0, NotSerialized) { Return (PPRS) }
          Method (_SRS, 1, NotSerialized) {
            CreateDWordField (Arg0, 0x05, IRQW)
            Store (IRQW, PIRC)
          }
        }

        //
        // PCI IRQ Link D
        //
        Device (LNKD) {
          Name (_HID, EISAID("PNP0C0F"))
          Name (_UID, 4)

          Method (_STA, 0, NotSerialized) { Return (PSTA (PIRD)) }
          Method (_DIS, 0, NotSerialized) {
            Or (PIRD, 0x80, PIRD) // set disable-bit
          }
          Method (_CRS, 0, NotSerialized) { Return (PCRS (PIRD)) }
          Method (_PRS, 0, NotSerialized) { Return (PPRS) }
          Method (_SRS, 1, NotSerialized) {
            CreateDWordField (Arg0, 0x05, IRQW)
            Store (IRQW, PIRD)
          }
        }

        //
        // Programmable Interrupt Controller (PIC)
        //
        Device(PIC) {
          Name (_HID, EISAID ("PNP0000"))
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0x020, 0x020, 0x00, 0x02)
            IO (Decode16, 0x0A0, 0x0A0, 0x00, 0x02)
            IO (Decode16, 0x4D0, 0x4D0, 0x00, 0x02)
            IRQNoFlags () {2}
            //
            // list of IRQs occupied thus far: 9, 5, 10, 11, 2
            //
          })
        }

        //
        // ISA DMA
        //
        Device (DMAC) {
          Name (_HID, EISAID ("PNP0200"))
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0x00, 0x00, 0, 0x10)
            IO (Decode16, 0x81, 0x81, 0, 0x03)
            IO (Decode16, 0x87, 0x87, 0, 0x01)
            IO (Decode16, 0x89, 0x89, 0, 0x03)
            IO (Decode16, 0x8f, 0x8f, 0, 0x01)
            IO (Decode16, 0xc0, 0xc0, 0, 0x20)
            DMA (Compatibility, NotBusMaster, Transfer8) {4}
          })
        }

        //
        // 8254 Timer
        //
        Device(TMR) {
          Name(_HID,EISAID("PNP0100"))
          Name(_CRS, ResourceTemplate () {
            IO (Decode16, 0x40, 0x40, 0x00, 0x04)
            IRQNoFlags () {0}
            //
            // list of IRQs occupied thus far: 9, 5, 10, 11, 2, 0
            //
          })
        }

        //
        // Real Time Clock
        //
        Device (RTC) {
          Name (_HID, EISAID ("PNP0B00"))
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0x70, 0x70, 0x00, 0x02)
            IRQNoFlags () {8}
            //
            // list of IRQs occupied thus far: 9, 5, 10, 11, 2, 0, 8
            //
          })
        }

        //
        // PCAT Speaker
        //
        Device(SPKR) {
          Name (_HID, EISAID("PNP0800"))
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0x61, 0x61, 0x01, 0x01)
          })
        }

        //
        // Floating Point Coprocessor
        //
        Device(FPU) {
          Name (_HID, EISAID("PNP0C04"))
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0xF0, 0xF0, 0x00, 0x10)
            IRQNoFlags () {13}
            //
            // list of IRQs occupied thus far: 9, 5, 10, 11, 2, 0, 8, 13
            //
          })
        }

        //
        // Generic motherboard devices and pieces that don't fit anywhere else
        //
        Device(XTRA) {
          Name (_HID, EISAID ("PNP0C02"))
          Name (_UID, 0x01)
          Name (_CRS, ResourceTemplate () {
            IO (Decode16, 0x010, 0x010, 0x00, 0x10)
            IO (Decode16, 0x022, 0x022, 0x00, 0x1E)
            IO (Decode16, 0x044, 0x044, 0x00, 0x1C)
            IO (Decode16, 0x062, 0x062, 0x00, 0x02)
            IO (Decode16, 0x065, 0x065, 0x00, 0x0B)
            IO (Decode16, 0x072, 0x072, 0x00, 0x0E)
            IO (Decode16, 0x080, 0x080, 0x00, 0x01)
            IO (Decode16, 0x084, 0x084, 0x00, 0x03)
            IO (Decode16, 0x088, 0x088, 0x00, 0x01)
            IO (Decode16, 0x08c, 0x08c, 0x00, 0x03)
            IO (Decode16, 0x090, 0x090, 0x00, 0x10)
            IO (Decode16, 0x0A2, 0x0A2, 0x00, 0x1E)
            IO (Decode16, 0x0E0, 0x0E0, 0x00, 0x10)
            IO (Decode16, 0x1E0, 0x1E0, 0x00, 0x10)
            IO (Decode16, 0x160, 0x160, 0x00, 0x10)
            IO (Decode16, 0x278, 0x278, 0x00, 0x08)
            IO (Decode16, 0x370, 0x370, 0x00, 0x02)
            IO (Decode16, 0x378, 0x378, 0x00, 0x08)
            IO (Decode16, 0x402, 0x402, 0x00, 0x01)        // QEMU debug console, should use FixedPcdGet16 (PcdDebugIoPort)
            IO (Decode16, 0x440, 0x440, 0x00, 0x10)
            IO (Decode16, 0x678, 0x678, 0x00, 0x08)
            IO (Decode16, 0x778, 0x778, 0x00, 0x08)
            IO (Decode16, 0xafe0, 0xafe0, 0x00, 0x04)      // QEMU GPE0 BLK
            IO (Decode16, 0xb000, 0xb000, 0x00, 0x40)      // PMBLK1
            Memory32Fixed (ReadOnly, 0xFEC00000, 0x1000)   // IO APIC
            Memory32Fixed (ReadOnly, 0xFEE00000, 0x100000) // LAPIC
          })
        }

        //
        // PS/2 Keyboard and PC/AT Enhanced Keyboard 101/102
        //
        Device (PS2K) {
          Name (_HID, EISAID ("PNP0303"))
          Name (_CID, EISAID ("PNP030B"))
          Name(_CRS,ResourceTemplate() {
            IO (Decode16, 0x60, 0x60, 0x00, 0x01)
            IO (Decode16, 0x64, 0x64, 0x00, 0x01)
            IRQNoFlags () {1}
            //
            // list of IRQs occupied thus far: 9, 5, 10, 11, 2, 0, 8, 13, 1
            //
          })
        }

        //
        // PS/2 Mouse and Microsoft Mouse
        //
        Device (PS2M) {  // PS/2 stype mouse port
          Name (_HID, EISAID ("PNP0F03"))
          Name (_CID, EISAID ("PNP0F13"))
          Name (_CRS, ResourceTemplate() {
            IRQNoFlags () {12}
            //
            // list of IRQs occupied thus far:
            // 9, 5, 10, 11, 2, 0, 8, 13, 1, 12
            //
          })
        }

        //
        // UART Serial Port - COM1
        //
        Device (UAR1) {
          Name (_HID, EISAID ("PNP0501"))
          Name (_DDN, "COM1")
          Name (_UID, 0x01)
          Name(_CRS,ResourceTemplate() {
            IO (Decode16, 0x3F8, 0x3F8, 0x01, 0x08)
            IRQ (Edge, ActiveHigh, Exclusive, ) {4}
            //
            // list of IRQs occupied thus far:
            // 9, 5, 10, 11, 2, 0, 8, 13, 1, 12, 4
            //
          })
        }

        //
        // UART Serial Port - COM2
        //
        Device (UAR2) {
          Name (_HID, EISAID ("PNP0501"))
          Name (_DDN, "COM2")
          Name (_UID, 0x02)
          Name(_CRS,ResourceTemplate() {
            IO (Decode16, 0x2F8, 0x2F8, 0x01, 0x08)
            IRQ (Edge, ActiveHigh, Exclusive, ) {3}
            //
            // list of IRQs occupied thus far:
            // 9, 5, 10, 11, 2, 0, 8, 13, 1, 12, 4, 3
            //
          })
        }

        //
        // Floppy Disk Controller
        //
        Device (FDC) {
          Name (_HID, EISAID ("PNP0700"))
          Name (_CRS,ResourceTemplate() {
            IO (Decode16, 0x3F0, 0x3F0, 0x01, 0x06)
            IO (Decode16, 0x3F7, 0x3F7, 0x01, 0x01)
            IRQNoFlags () {6}
            //
            // list of IRQs occupied thus far:
            // 9, 5, 10, 11, 2, 0, 8, 13, 1, 12, 4, 3, 6
            //
            DMA (Compatibility, NotBusMaster, Transfer8) {2}
          })
        }

        //
        // parallel port -- no DMA for now
        //
        Device (PAR1) {
          Name (_HID, EISAID ("PNP0400"))
          Name (_DDN, "LPT1")
          Name (_UID, 0x01)
          Name(_CRS, ResourceTemplate() {
            IO (Decode16, 0x0378, 0x0378, 0x00, 0x08)
            IRQNoFlags () {7}
            //
            // list of IRQs occupied thus far:
            // 9, 5, 10, 11, 2, 0, 8, 13, 1, 12, 4, 3, 6, 7
            // in order:
            // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
            //
          })
        }
      }
    }
  }
}