[Qemu-devel] [Bug 1829682] Re: QEMU PPC SYSTEM regression - 3.1.0 and GIT - Fail to boot AIX

[Ivan Warren]

It might be a red herring...

The AIX Boot procedure under 3.1.0 issues a

LED{814}

which it doesn't issue under 4.0.50 (so a different path is taken at
some point by the AIX kernel)

First I need to determine what AIX code 814 stands for (but it could be
auxiliary)

Before going into the ".dispatch+98" (0x8f418) - so something else must
be different between 3.1.0 and 4.0.50...

I'm probably going to have to "git bisect" this, but that's not going to
be easy (the build in itself takes quite a while, although I could
optimize it to just include the ppc64 TCG version).

Apologies for anyone receiving notifications for this, but I'd really
like this to work !

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Title:
  QEMU PPC SYSTEM regression - 3.1.0 and GIT - Fail to boot AIX

Status in QEMU:
  New

Bug description:
  Built from source on a debian system

  Linux db08 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux
  gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)

  Last git commit (from queued gdibson repository)

  starting AIX 7.2 TL 2 SP 2 with the following : (the install was done
  under qemu 3.1.0)

  qemu-system-ppc64 -M pseries \
      -cpu power7 \
      -cdrom AIX_v7.2_Install_7200-02-02-1806_DVD_1_of_2_32018.iso \
      -net nic \
      -net tap,ifname=tap2,script=no \
      -drive file=DISK1.IMG,if=none,id=drive-virtio-disk0 \
      -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=drive-virtio-disk0 \
      -m 4G \
      -serial stdio \
      -monitor unix:ms,server,nowait \
      -accel tcg \
      -k fr \
      -nographic \
      -prom-env input-device=/vdevice/address@hidden \
      -prom-env output-device=/vdevice/address@hidden \
      -prom-env diag-switch?=false \
      -prom-env boot-command="boot 
/address@hidden/address@hidden/address@hidden -s verbose"

  Yields this :

  
  ^M
  SLOF^[[0m^[[?25l 
**********************************************************************^M
  ^[[1mQEMU Starting^M
  ^[[0m Build Date = Jan 14 2019 18:00:39^M
   FW Version = git-a5b428e1c1eae703^M
   Press "s" to enter Open Firmware.^M^M
  ^M^M
  
^[[0m^[[?25hC0000^MC0100^MC0120^MC0140^MC0200^MC0240^MC0260^MC02E0^MC0300^MC0320^MC0340^MC0360^MC0370^MC0380^MC0371^MC0372^MC0373^MC0374^MC03F0^MC0400^MC0480^MC04C0^MC04D0^MC0500^MPopulating
 /vdevice methods^M
  Populating /vdevice/address@hidden
  Populating /vdevice/address@hidden
  Populating /vdevice/address@hidden
  Populating /vdevice/address@hidden
         SCSI: Looking for devices^M
            8200000000000000 CD-ROM   : "QEMU     QEMU CD-ROM      2.5+"^M
  C05A0^MPopulating /address@hidden
                       00 0000 (D) : 1234 1111    qemu vga^M
                       00 0800 (D) : 1033 0194    serial bus [ usb-xhci ]^M
                       00 1000 (D) : 1af4 1004    virtio [ scsi ]^M
  Populating /address@hidden/address@hidden
         SCSI: Looking for devices^M
            100000000000000 DISK     : "QEMU     QEMU HARDDISK    2.5+"^M
  C0600^MC06C0^MC0700^MC0800^MC0880^MC0890^MC08A0^MC08A8^MInstalling QEMU fb^M
  ^M
  ^M
  ^M
  C08B0^MScanning USB ^M
    XHCI: Initializing^M
      USB Keyboard ^M
      USB mouse ^M
  C08C0^MC08D0^MNo console specified using screen & keyboard^M
  User selected input-device console: /vdevice/address@hidden
  User selected output-device console: /vdevice/address@hidden
  C08E0^MC08E8^MC08FF^M     ^M
    Welcome to Open Firmware^M
  ^M
    Copyright (c) 2004, 2017 IBM Corporation All rights reserved.^M
    This program and the accompanying materials are made available^M
    under the terms of the BSD License available at^M
    http://www.opensource.org/licenses/bsd-license.php^M
  ^M
  ^M
  Trying to load: -s verbose from: 
/address@hidden/address@hidden/address@hidden ...   Successfully loaded^M
  ^M
                          ---> qemu,pseries detected <---^M
  ^M
  ^M
  ^M
  ^M
  ^M
  ^M
  ^M
  
-------------------------------------------------------------------------------^M
                                  Welcome to AIX.^M
                     boot image timestamp: 05:56:13 04/20/2019^M
          processor count: 1;  memory size: 4096MB;  kernel size: 38426884^M
           boot device: /address@hidden/address@hidden/address@hidden
  ^M
  8000FFEC bytes of free memory remain at address 7FFF0014^M
  load address: 0x00004000   aixmon size: 0x000D2C00   boot image size: 
0x01A6B430^M
  ^LAIX vm,uuid property contains invalid data^Mload address: 0x00004000   
aixmon size: 0x000D2C00   boot image size: 0x01A6B430^M
  ^LAIX vm,uuid property contains invalid data^M
  get_ppp return code: 0xFFFFFFFE^M
  ^M
  AKVM: hcall-multi-tce detected but overridden, allow with "multce" boot 
argument^M
  The temporary memory region list is at 1 percent capacity.^M
  The temporary IPLCB is at 1 percent capacity.^M
  The IPLCB address is 0x0FFF9000^M
  name                 offset           size^M
  ipl_cb_and_bit_map 00000000 ......00005958^M
  bit_map........... 00000790 ......00000006^M
  ipl_info.......... 000001C8 ......00000024^M
  splpar_info....... 000001EC ......00000048^M
  system_info....... 00000234 ......000000C4^M
  processor_info.... 000002F8 ......00000148^M
  lpar_id_info...... 00000440 ......00000088^M
  dr_proc_info...... 000004C8 ......00000008^M
  dr_mem_info....... 000004D0 ......00000028^M
  lpar_info......... 000004F8 ......00000014^M
  segment page...... 00000518 ......00000028^M
  processor page.... 00000540 ......00000010^M
  res_asso_id....... 00000550 ......00000050^M
  res_asso_group.... 000005A0 ......00000048^M
  asso_ref_pnt...... 000005E8 ......00000010^M
  residual.......... 00000820 ......00005138^M
  fwad_info......... 000005F8 ......00000040^M
  contig mem rsv.... 00000738 ......00000058^M
      region address      region length       attr  label^M
  0   0x0000000000000000  0x000000000FFF7000  0x01  0x01^M
  1   0x000000000FFF7000  0x0000000000002000  0x01  0x03^M
  2   0x000000000FFF9000  0x0000000000006000  0x01  0x02^M
  3   0x000000000FFFF000  0x0000000000000014  0x00  0x05^M
  4   0x000000000FFFF014  0x00000000F0000FEC  0x01  0x01^M
  5   0x0000000100000000  0xFFFFFFFF00000000  0x00  0x07^M
  ----------------------------^M
  ^M
  0000012C bytes of free memory remain at address 00004000^M
  compressed kernel addr: D6C00;  sz: 98CE33;  uncompressed kernel addr:  
1DB59600^M
           name     source       dest       size   flags^M
   0      .data   1e6f9840    2000000    12bdd20     1^M
   1    basecfg    1b04000    fff5000       15d9     1^M
   2      ramfs     a63a30    efe9000    100b82a     1^M
   3      .text   1db59840      d6c00     ba0000     1^M
   4       .ldr   1f9b7560     c77000      a9523     1^M
   5     symtab   1fe0aaf4     d21000     1f4410     1^M
   6  kern. hdr   1db59600          0        240     1^M
   7       .bss          0    32bdd20    27222e0     2^M
  free space between BSS and RAM filesystem: 09609000^M
  ^M
  entry_point: 0x000D6C28^M
                         kernel debugger setting: enabled^M
  
-------------------------------------------------------------------------------^M
  ^LStarLED{A20}^M
  Data Storage Interrupt - PROC^M
  .dispatch+000098              lwz    r0,1830(r6)         
r0=0,1830(r6)=F00000002FF48E30^M
  KDB(0)>

  (apologies for all the ^M - they are emitted by qemu or AIX - not
  sure)

  Using the same command to boot AIX from 3.1.0 works (no DSI
  Interrupt). - Other problems occur later, but no Kernel interrupt,
  only user space problems - and that's another problem - but one at a
  time !

  --Ivan

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