[Bug 1902777] Re: qemu with whpx acceleration crashes with vmx=on

[Thomas Huth]

The QEMU project is currently moving 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 the bug state to "Incomplete" now.

If the bug has already been fixed in the latest upstream version of QEMU,
then please close this ticket as "Fix released".

If it is not fixed yet and you think that this bug report here is still
valid, then you have two options:

1) If you already have an account on gitlab.com, please open a new ticket
for this problem in our new tracker here:

    https://gitlab.com/qemu-project/qemu/-/issues

and then close this ticket here on Launchpad (or let it expire auto-
matically after 60 days). Please mention the URL of this bug ticket on
Launchpad in the new ticket on GitLab.

2) If you don't have an account on gitlab.com and don't intend to get
one, but still would like to keep this ticket opened, then please switch
the state back to "New" or "Confirmed" within the next 60 days (other-
wise it will get closed as "Expired"). We will then eventually migrate
the ticket automatically to the new system (but you won't be the reporter
of the bug in the new system and thus you won't get notified on changes
anymore).

Thank you and sorry for the inconvenience.


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

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https://bugs.launchpad.net/bugs/1902777

Title:
  qemu with whpx acceleration crashes with vmx=on

Status in QEMU:
  Incomplete

Bug description:
  Under Windows 10, qemu crashes when using whpx acceleration and the vmx=on 
option.  The reported error is
    qemu-system-x86_64.exe: WHPX: Unexpected VP exit code 4
  Before the error, it reports
    Windows Hypervisor Platform accelerator is operational

  The command line is the following:
    "C:\Program Files\qemu\qemu-system-x86_64.exe" -accel whpx -cpu 
qemu64,vmx=on
  It crashes with any model of CPU as long as the "vmx=on" option is added.  
Without this option it runs fine (but no nested virtualization).

  My processor is an Intel i7-10510U, and I am running Windows 10 2004
  (build 19041.572).

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