[Qemu-devel] [Bug 1804961] [NEW] qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Qemu-devel] [Bug 1804961] [NEW] qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[GH Cao]

Public bug reported:

When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

Windows Build: 10.0.17134.1
QEMU version: 3.0.0
Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

By the way, the patch to add DBG2 table discussed here
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02550.html
works (although minor change is required to adapt to the qemu 3.0.0
code), the table is accepted by Windows (Windows require both DBG2 and
SPCR to be valid for serial kernel debugging to work), so it may help
further diagnosing this issue.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02550.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

[Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[GH Cao]

** Description changed:

  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.
  
  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0
  
  By the way, the patch to add DBG2 table discussed here
- https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02550.html
+ https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

Re: [Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Igor Mammedov]

On Sat, 24 Nov 2018 20:36:54 -0000
GH Cao <1804961@bugs.launchpad.net> wrote:

> ** Description changed:
> 
>   When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
>   error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.
>   
>   Windows Build: 10.0.17134.1
>   QEMU version: 3.0.0
>   Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0
>   
>   By the way, the patch to add DBG2 table discussed here
> - https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02550.html
> + https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
>   works (although minor change is required to adapt to the qemu 3.0.0
>   code), the table is accepted by Windows (Windows require both DBG2 and
>   SPCR to be valid for serial kernel debugging to work), so it may help
>   further diagnosing this issue.
> 

if you are able to attach a debugger early before guest BSODs,
you can try to use AMIL Debugger
https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/the-amli-debugger
to find out what windows doesn't like in ACPI tables.

[Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[GH Cao]

@imammedo:
I am new to kernel debugging, but I managed to get some traces, hope that will help you. 

https://pastebin.com/shWUC1Pk
https://pastebin.com/n0gnSaVx

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

[Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[GH Cao]

And the namespace objects tree of virt-2.12 is this.
https://pastebin.com/GybigJ9r

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

Re: [Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Igor Mammedov]

On Wed, 28 Nov 2018 19:25:07 -0000
GH Cao <1804961@bugs.launchpad.net> wrote:

> @imammedo:
> I am new to kernel debugging, but I managed to get some traces, hope that will help you. 
> 
> https://pastebin.com/shWUC1Pk
> https://pastebin.com/n0gnSaVx
> 

try it with following amli options set: errbrkon traceon spewon
hopefully errbrkon will stop at the error and the rest of options should provide context

[Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Alex Bennée]

Could it be related to:

commit 17ec075a651a3f9613429c2d97018fce459ed943
Author: Eric Auger <eric.auger@redhat.com>
Date:   Fri Jun 22 13:28:37 2018 +0100

    hw/arm/virt: Use 256MB ECAM region by default

    With this patch, virt-3.0 machine uses a new 256MB ECAM region
    by default instead of the legacy 16MB one, if highmem is set
    (LPAE supported by the guest) and (!firmware_loaded || aarch64).

    Indeed aarch32 mode FW may not support this high ECAM region.

As far as I can tell the only real differences between virt-2.12 and
later at the size of the ECAM region and the max number of CPUs it
supports:

static void virt_machine_2_12_options(MachineClass *mc)
{
    VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));

    virt_machine_3_0_options(mc);
    SET_MACHINE_COMPAT(mc, VIRT_COMPAT_2_12);
    vmc->no_highmem_ecam = true;
    mc->max_cpus = 255;
}


** Tags added: aarch64 acpi

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

Re: [Qemu-devel] [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[GH Cao]

Yeah it seems to be. Windows boots fine after I disable hi ECAM region.


 
---Original---
From: "Alex Bennée"<alex.bennee@linaro.org>
Date: 2018/12/5 19:41:40
To: "driver1998"<driver1998@foxmail.com>;
Subject: [Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0


Could it be related to:

commit 17ec075a651a3f9613429c2d97018fce459ed943
Author: Eric Auger <eric.auger@redhat.com>
Date:   Fri Jun 22 13:28:37 2018 +0100

    hw/arm/virt: Use 256MB ECAM region by default

    With this patch, virt-3.0 machine uses a new 256MB ECAM region
    by default instead of the legacy 16MB one, if highmem is set
    (LPAE supported by the guest) and (!firmware_loaded || aarch64).

    Indeed aarch32 mode FW may not support this high ECAM region.

As far as I can tell the only real differences between virt-2.12 and
later at the size of the ECAM region and the max number of CPUs it
supports:

static void virt_machine_2_12_options(MachineClass *mc)
{
    VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));

    virt_machine_3_0_options(mc);
    SET_MACHINE_COMPAT(mc, VIRT_COMPAT_2_12);
    vmc->no_highmem_ecam = true;
    mc->max_cpus = 255;
}


** Tags added: aarch64 acpi

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report.
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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  New

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

[Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  Incomplete

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions

[Bug 1804961] Re: qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using virt-3.0

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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Title:
  qemu-system-aarch64: Windows 10 ARM64 BSoD on boot while using
  virt-3.0

Status in QEMU:
  Expired

Bug description:
  When I emulate a virt-3.0 machine, Windows 10 BSoD on boot, with the
  error code being ACPI_BIOS_ERROR(0x000000A5), virt-2.12 boots fine.

  Windows Build: 10.0.17134.1
  QEMU version: 3.0.0
  Commandline: qemu-system-aarch64 -M virt -accel tcg,thread=multi -cpu cortex-a57 -smp 2 -m 2048 -bios QEMU_EFI.fd -device ramfb -device nec-usb-xhci -device usb-kbd -device usb-tablet -hda disk.vhd -vnc :0

  By the way, the patch to add DBG2 table discussed here
  https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01719.html
  works (although minor change is required to adapt to the qemu 3.0.0
  code), the table is accepted by Windows (Windows require both DBG2 and
  SPCR to be valid for serial kernel debugging to work), so it may help
  further diagnosing this issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1804961/+subscriptions