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

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

Title:
  qemu with whpx acceleration crashes with vmx=on

Status in QEMU:
  Expired

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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