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Re: [PATCH v10 13/13] tests/acpi: add DSDT.hpbrroot DSDT table blob to t


From: Michael S. Tsirkin
Subject: Re: [PATCH v10 13/13] tests/acpi: add DSDT.hpbrroot DSDT table blob to test global i440fx hotplug
Date: Tue, 29 Sep 2020 03:11:56 -0400

On Fri, Sep 18, 2020 at 02:11:11PM +0530, Ani Sinha wrote:
> This change adds a new DSDT golden master table blob to test disabling
> hotplug on both pci root bus and pci bridges. Also reverts the change
> in file bios-tables-test-allowed-diff.h to make sure its now empty so that
> future modifications to acpi tables can be caught.
> 
> The following is the disassembled diff between DSDT.hpbridge and 
> DSDT.hpbrroot:
> 
> @@ -1,30 +1,30 @@
>  /*
>   * Intel ACPI Component Architecture
>   * AML/ASL+ Disassembler version 20180105 (64-bit version)
>   * Copyright (c) 2000 - 2018 Intel Corporation
>   *
>   * Disassembling to symbolic ASL+ operators
>   *
> - * Disassembly of tests/data/acpi/pc/DSDT.hpbridge, Wed Sep 16 09:45:56 2020
> + * Disassembly of /tmp/aml-ECV9Q0, Wed Sep 16 09:45:56 2020
>   *
>   * Original Table Header:
>   *     Signature        "DSDT"
> - *     Length           0x0000131F (4895)
> + *     Length           0x00000B89 (2953)
>   *     Revision         0x01 **** 32-bit table (V1), no 64-bit math support
> - *     Checksum         0xF9
> + *     Checksum         0xA2
>   *     OEM ID           "BOCHS "
>   *     OEM Table ID     "BXPCDSDT"
>   *     OEM Revision     0x00000001 (1)
>   *     Compiler ID      "BXPC"
>   *     Compiler Version 0x00000001 (1)
>   */
>  DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPCDSDT", 0x00000001)
>  {
>      Scope (\)
>      {
>          OperationRegion (DBG, SystemIO, 0x0402, One)
>          Field (DBG, ByteAcc, NoLock, Preserve)
>          {
>              DBGB,   8
>          }
> 
> @@ -234,64 +234,32 @@
>          {
>              Name (_HID, EisaId ("PNP0B00") /* AT Real-Time Clock */)  // 
> _HID: Hardware ID
>              Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource 
> Settings
>              {
>                  IO (Decode16,
>                      0x0070,             // Range Minimum
>                      0x0070,             // Range Maximum
>                      0x01,               // Alignment
>                      0x08,               // Length
>                      )
>                  IRQNoFlags ()
>                      {8}
>              })
>          }
>      }
> 
> -    Scope (_SB.PCI0)
> -    {
> -        OperationRegion (PCST, SystemIO, 0xAE00, 0x08)
> -        Field (PCST, DWordAcc, NoLock, WriteAsZeros)
> -        {
> -            PCIU,   32,
> -            PCID,   32
> -        }
> -
> -        OperationRegion (SEJ, SystemIO, 0xAE08, 0x04)
> -        Field (SEJ, DWordAcc, NoLock, WriteAsZeros)
> -        {
> -            B0EJ,   32
> -        }
> -
> -        OperationRegion (BNMR, SystemIO, 0xAE10, 0x04)
> -        Field (BNMR, DWordAcc, NoLock, WriteAsZeros)
> -        {
> -            BNUM,   32
> -        }
> -
> -        Mutex (BLCK, 0x00)
> -        Method (PCEJ, 2, NotSerialized)
> -        {
> -            Acquire (BLCK, 0xFFFF)
> -            BNUM = Arg0
> -            B0EJ = (One << Arg1)
> -            Release (BLCK)
> -            Return (Zero)
> -        }
> -    }
> -
>      Scope (_SB)
>      {
>          Scope (PCI0)
>          {
>              Method (_PRT, 0, NotSerialized)  // _PRT: PCI Routing Table
>              {
>                  Local0 = Package (0x80){}
>                  Local1 = Zero
>                  While ((Local1 < 0x80))
>                  {
>                      Local2 = (Local1 >> 0x02)
>                      Local3 = ((Local1 + Local2) & 0x03)
>                      If ((Local3 == Zero))
>                      {
>                          Local4 = Package (0x04)
>                              {
> @@ -690,38 +658,32 @@
>                  Method (_OST, 3, Serialized)  // _OST: OSPM Status Indication
>                  {
>                      COST (Zero, Arg0, Arg1, Arg2)
>                  }
>              }
>          }
>      }
> 
>      Method (\_GPE._E02, 0, NotSerialized)  // _Exx: Edge-Triggered GPE
>      {
>          \_SB.CPUS.CSCN ()
>      }
> 
>      Scope (_GPE)
>      {
>          Name (_HID, "ACPI0006" /* GPE Block Device */)  // _HID: Hardware ID
> -        Method (_E01, 0, NotSerialized)  // _Exx: Edge-Triggered GPE
> -        {
> -            Acquire (\_SB.PCI0.BLCK, 0xFFFF)
> -            \_SB.PCI0.PCNT ()
> -            Release (\_SB.PCI0.BLCK)
> -        }
>      }
> 
>      Scope (\_SB.PCI0)
>      {
>          Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
>          {
>              WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
>                  0x0000,             // Granularity
>                  0x0000,             // Range Minimum
>                  0x00FF,             // Range Maximum
>                  0x0000,             // Translation Offset
>                  0x0100,             // Length
>                  ,, )
>              IO (Decode16,
>                  0x0CF8,             // Range Minimum
>                  0x0CF8,             // Range Maximum
> @@ -766,48 +728,32 @@
>          })
>          Device (GPE0)
>          {
>              Name (_HID, "PNP0A06" /* Generic Container Device */)  // _HID: 
> Hardware ID
>              Name (_UID, "GPE0 resources")  // _UID: Unique ID
>              Name (_STA, 0x0B)  // _STA: Status
>              Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource 
> Settings
>              {
>                  IO (Decode16,
>                      0xAFE0,             // Range Minimum
>                      0xAFE0,             // Range Maximum
>                      0x01,               // Alignment
>                      0x04,               // Length
>                      )
>              })
>          }
> -
> -        Device (PHPR)
> -        {
> -            Name (_HID, "PNP0A06" /* Generic Container Device */)  // _HID: 
> Hardware ID
> -            Name (_UID, "PCI Hotplug resources")  // _UID: Unique ID
> -            Name (_STA, 0x0B)  // _STA: Status
> -            Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource 
> Settings
> -            {
> -                IO (Decode16,
> -                    0xAE00,             // Range Minimum
> -                    0xAE00,             // Range Maximum
> -                    0x01,               // Alignment
> -                    0x14,               // Length
> -                    )
> -            })
> -        }
>      }
> 
>      Scope (\)
>      {
>          Name (_S3, Package (0x04)  // _S3_: S3 System State
>          {
>              One,
>              One,
>              Zero,
>              Zero
>          })
>          Name (_S4, Package (0x04)  // _S4_: S4 System State
>          {
>              0x02,
>              0x02,
>              Zero,
> @@ -831,479 +777,48 @@
>              Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource 
> Settings
>              {
>                  IO (Decode16,
>                      0x0510,             // Range Minimum
>                      0x0510,             // Range Maximum
>                      0x01,               // Alignment
>                      0x0C,               // Length
>                      )
>              })
>          }
>      }
> 
>      Scope (\_SB)
>      {
>          Scope (PCI0)
>          {
> -            Name (BSEL, Zero)
>              Device (S00)
>              {
>                  Name (_ADR, Zero)  // _ADR: Address
>              }
> 
>              Device (S10)
>              {
>                  Name (_ADR, 0x00020000)  // _ADR: Address
>                  Method (_S1D, 0, NotSerialized)  // _S1D: S1 Device State
>                  {
>                      Return (Zero)
>                  }
> 
>                  Method (_S2D, 0, NotSerialized)  // _S2D: S2 Device State
>                  {
>                      Return (Zero)
>                  }
> 
>                  Method (_S3D, 0, NotSerialized)  // _S3D: S3 Device State
>                  {
>                      Return (Zero)
>                  }
>              }
> 
>              Device (S18)
>              {
>                  Name (_ADR, 0x00030000)  // _ADR: Address
>              }
> -
> -            Device (S20)
> -            {
> -                Name (_SUN, 0x04)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00040000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S28)
> -            {
> -                Name (_SUN, 0x05)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00050000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S30)
> -            {
> -                Name (_SUN, 0x06)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00060000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S38)
> -            {
> -                Name (_SUN, 0x07)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00070000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S40)
> -            {
> -                Name (_SUN, 0x08)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00080000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S48)
> -            {
> -                Name (_SUN, 0x09)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00090000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S50)
> -            {
> -                Name (_SUN, 0x0A)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000A0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S58)
> -            {
> -                Name (_SUN, 0x0B)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000B0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S60)
> -            {
> -                Name (_SUN, 0x0C)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000C0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S68)
> -            {
> -                Name (_SUN, 0x0D)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000D0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S70)
> -            {
> -                Name (_SUN, 0x0E)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000E0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S78)
> -            {
> -                Name (_SUN, 0x0F)  // _SUN: Slot User Number
> -                Name (_ADR, 0x000F0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S80)
> -            {
> -                Name (_SUN, 0x10)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00100000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S88)
> -            {
> -                Name (_SUN, 0x11)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00110000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S90)
> -            {
> -                Name (_SUN, 0x12)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00120000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (S98)
> -            {
> -                Name (_SUN, 0x13)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00130000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SA0)
> -            {
> -                Name (_SUN, 0x14)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00140000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SA8)
> -            {
> -                Name (_SUN, 0x15)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00150000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SB0)
> -            {
> -                Name (_SUN, 0x16)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00160000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SB8)
> -            {
> -                Name (_SUN, 0x17)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00170000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SC0)
> -            {
> -                Name (_SUN, 0x18)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00180000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SC8)
> -            {
> -                Name (_SUN, 0x19)  // _SUN: Slot User Number
> -                Name (_ADR, 0x00190000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SD0)
> -            {
> -                Name (_SUN, 0x1A)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001A0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SD8)
> -            {
> -                Name (_SUN, 0x1B)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001B0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SE0)
> -            {
> -                Name (_SUN, 0x1C)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001C0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SE8)
> -            {
> -                Name (_SUN, 0x1D)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001D0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SF0)
> -            {
> -                Name (_SUN, 0x1E)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001E0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Device (SF8)
> -            {
> -                Name (_SUN, 0x1F)  // _SUN: Slot User Number
> -                Name (_ADR, 0x001F0000)  // _ADR: Address
> -                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device
> -                {
> -                    PCEJ (BSEL, _SUN)
> -                }
> -            }
> -
> -            Method (DVNT, 2, NotSerialized)
> -            {
> -                If ((Arg0 & 0x10))
> -                {
> -                    Notify (S20, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x20))
> -                {
> -                    Notify (S28, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x40))
> -                {
> -                    Notify (S30, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x80))
> -                {
> -                    Notify (S38, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x0100))
> -                {
> -                    Notify (S40, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x0200))
> -                {
> -                    Notify (S48, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x0400))
> -                {
> -                    Notify (S50, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x0800))
> -                {
> -                    Notify (S58, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x1000))
> -                {
> -                    Notify (S60, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x2000))
> -                {
> -                    Notify (S68, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x4000))
> -                {
> -                    Notify (S70, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x8000))
> -                {
> -                    Notify (S78, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00010000))
> -                {
> -                    Notify (S80, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00020000))
> -                {
> -                    Notify (S88, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00040000))
> -                {
> -                    Notify (S90, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00080000))
> -                {
> -                    Notify (S98, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00100000))
> -                {
> -                    Notify (SA0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00200000))
> -                {
> -                    Notify (SA8, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00400000))
> -                {
> -                    Notify (SB0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x00800000))
> -                {
> -                    Notify (SB8, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x01000000))
> -                {
> -                    Notify (SC0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x02000000))
> -                {
> -                    Notify (SC8, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x04000000))
> -                {
> -                    Notify (SD0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x08000000))
> -                {
> -                    Notify (SD8, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x10000000))
> -                {
> -                    Notify (SE0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x20000000))
> -                {
> -                    Notify (SE8, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x40000000))
> -                {
> -                    Notify (SF0, Arg1)
> -                }
> -
> -                If ((Arg0 & 0x80000000))
> -                {
> -                    Notify (SF8, Arg1)
> -                }
> -            }
> -
> -            Method (PCNT, 0, NotSerialized)
> -            {
> -                BNUM = Zero
> -                DVNT (PCIU, One)
> -                DVNT (PCID, 0x03)
> -            }
>          }
>      }
>  }

This is not the only diff I see if I apply this patchset on
top of master.
Dropped this and the previous patch.
Please check what is going on and repost as appropriate.



> Signed-off-by: Ani Sinha <ani@anisinha.ca>
> Acked-by: Igor Mammedov <imammedo@redhat.com>
> ---




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