The following patchset adds the unit test for the change: f80ba9e599 ("tests/acpi: unit test for 'acpi-pci-hotplug-with-bridge-support' bridge flag")
Please compare the diff of the DSDT table attached with the commit log with the following diff which was generated before appplying the above change. The major difference between the diffs are the absence of the following lines in the diff corresponding to this change: + Name (_SUN, 0x03) // _SUN: Slot User Number + Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device { + PCEJ (BSEL, _SUN) + If ((Arg0 & 0x08)) + { + Notify (S18, Arg1) + } + These are hotplug related amls which were present for slot 3 in the root pci bus before this change was applied. With the change, these amls have been removed. Hence, slot 3 where the bridge is attached is no longer hotplug capable. --Ani @@ -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.bridge, Fri Sep 4 11:08:58 2020 + * Disassembly of /tmp/aml-IEQEQ0, Fri Sep 4 11:08:58 2020 * * Original Table Header: * Signature "DSDT" - * Length 0x00001A89 (6793) + * Length 0x00001346 (4934) * Revision 0x01 **** 32-bit table (V1), no 64-bit math support - * Checksum 0x08 + * Checksum 0xBF * 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 } @@ -859,521 +859,36 @@ } 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 - Name (BSEL, One) - Device (S00) - { - Name (_SUN, Zero) // _SUN: Slot User Number - Name (_ADR, Zero) // _ADR: Address - Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device - { - PCEJ (BSEL, _SUN) - } - } - - Device (S08) - { - Name (_SUN, One) // _SUN: Slot User Number - Name (_ADR, 0x00010000) // _ADR: Address - Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device - { - PCEJ (BSEL, _SUN) - } - } - - Device (S10) - { - Name (_SUN, 0x02) // _SUN: Slot User Number - Name (_ADR, 0x00020000) // _ADR: Address - Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device - { - PCEJ (BSEL, _SUN) - } - } - - Device (S18) - { - Name (_SUN, 0x03) // _SUN: Slot User Number - Name (_ADR, 0x00030000) // _ADR: Address - Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device - { - PCEJ (BSEL, _SUN) - } - } - - 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 & One)) - { - Notify (S00, Arg1) - } - - If ((Arg0 & 0x02)) - { - Notify (S08, Arg1) - } - - If ((Arg0 & 0x04)) - { - Notify (S10, Arg1) - } - - If ((Arg0 & 0x08)) - { - Notify (S18, Arg1) - } - - 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) + Name (_SUN, 0x03) // _SUN: Slot User Number + Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device { - BNUM = One - DVNT (PCIU, One) - DVNT (PCID, 0x03) + PCEJ (BSEL, _SUN) } } 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 @@ -1633,32 +1148,37 @@ 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 & 0x08)) + { + Notify (S18, Arg1) + } + If ((Arg0 & 0x10)) { Notify (S20, Arg1) } If ((Arg0 & 0x20)) { Notify (S28, Arg1) } If ((Arg0 & 0x40)) { Notify (S30, Arg1) } If ((Arg0 & 0x80)) @@ -1779,22 +1299,21 @@ If ((Arg0 & 0x40000000)) { Notify (SF0, Arg1) } If ((Arg0 & 0x80000000)) { Notify (SF8, Arg1) } } Method (PCNT, 0, NotSerialized) { BNUM = Zero DVNT (PCIU, One) DVNT (PCID, 0x03) - ^S18.PCNT () } } } } *** Ani Sinha (3): tests/acpi: list added acpi table binary file for pci bridge hotplug test tests/acpi: unit test for 'acpi-pci-hotplug-with-bridge-support' bridge flag tests/acpi: add newly added acpi DSDT table blob for pci bridge hotplug flag tests/data/acpi/pc/DSDT.hpbridge | Bin 0 -> 4895 bytes tests/qtest/bios-tables-test.c | 15 +++++++++++++++ 2 files changed, 15 insertions(+) create mode 100644 tests/data/acpi/pc/DSDT.hpbridge -- 2.17.1