[Bug 1821595] Re: Failed to emulate MMIO access with EmulatorReturnStatus: 2

[Emin Ghuliev]

Which OS do you try with qemu? IIRC Windows 10 should work well with
WHPX. Also,this issue is qemu depended that they don't handle specific
MMIO instruction/exit.

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https://bugs.launchpad.net/bugs/1821595

Title:
  Failed to emulate MMIO access with EmulatorReturnStatus: 2

Status in QEMU:
  New

Bug description:
  I have compiled qemu with enable-whpx parameter for Hyper-V Platform API in 
Mingw64 . When I tried run with Windows 7 iso file I have faced issue with the 
following problem: 
  qemu-system-x86_64.exe: WHPX: Failed to emulate MMIO access with 
EmulatorReturnStatus: 2
  qemu-system-x86_64.exe: WHPX: Failed to exec a virtual processor

  
  configuration directives:

  ../configure --target-list=x86_64-softmmu,i386-softmmu --enable-lzo\
   --enable-bzip2 --enable-tools --enable-sdl --enable-gtk --enable-hax\
   --enable-vdi --enable-qcow1 --enable-whpx --disable-capstone\
   --disable-werror --disable-stack-protector --prefix="../../QEMU-bin"

  
  Qemu command line:
  qemu-system-x86_64.exe -m 1024 -cdrom 
"C:\Users\vmcs\Documents\en_windows_7_home_premium_with_sp1_x86_dvd_u_676701.iso"
 -display sdl -machine q35 -accel whpx

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