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From: Ani Sinha <ani@anisinha.ca>
To: qemu-devel@nongnu.org
Cc: Ani Sinha <ani@anisinha.ca>, Igor Mammedov <imammedo@redhat.com>,
	jusual@redhat.com, "Michael S. Tsirkin" <mst@redhat.com>
Subject: [PATCH v1 0/3] unit tests for change 'do not add hotplug related amls for cold plugged bridges'
Date: Sat,  5 Sep 2020 16:05:17 +0530	[thread overview]
Message-ID: <20200905103520.12626-1-ani@anisinha.ca> (raw)

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



             reply	other threads:[~2020-09-05 10:36 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-05 10:35 Ani Sinha [this message]
2020-09-05 10:35 ` [PATCH v1 1/3] tests/acpi: list added acpi table binary file for pci bridge hotplug test Ani Sinha
2020-09-05 10:35 ` [PATCH v1 2/3] tests/acpi: unit test for 'acpi-pci-hotplug-with-bridge-support' bridge flag Ani Sinha
2020-09-10 17:04   ` Ani Sinha
2020-09-11 12:45     ` Igor Mammedov
2020-09-11 13:29       ` Ani Sinha
2020-09-11 14:59     ` Michael S. Tsirkin
2020-09-11 15:06       ` Ani Sinha
2020-09-05 10:35 ` [PATCH v1 3/3] tests/acpi: add newly added acpi DSDT table blob for pci bridge hotplug flag Ani Sinha
2020-09-05 12:26 ` [PATCH v1 0/3] unit tests for change 'do not add hotplug related amls for cold plugged bridges' Ani Sinha
2020-09-11 16:08 ` Michael S. Tsirkin
2020-09-11 16:11   ` Ani Sinha
2020-09-11 16:21     ` Ani Sinha
2020-09-11 18:10       ` Ani Sinha

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