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

[Russell Morris]

Hi,

Having a similar issue here, running "QEMU emulator version 4.2.91
(v5.0.0-rc1-31-g146aa0f104-dirty)"

Configuration / build command line,
./configure --cross-prefix=x86_64-w64-mingw32- --target-list=x86_64-softmmu 
--enable-whpx --enable-fdt --enable-gtk --enable-vnc --disable-pie 
--enable-opengl && make -j16 && make -j16 installer

And the QEMU command line,
qemu-system-x86_64.exe \
    -m 2G \
    -machine q35 \
    -cpu Penryn \
    -accel whpx \
    -device 
isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
 \
    -smbios type=2 \
    -drive if=pflash,format=raw,readonly,file="./firmware/OVMF_CODE.fd"\
    -drive if=pflash,format=raw,file="./firmware/OVMF_VARS-1024x768.fd" \
    -usb -device usb-kbd -device usb-mouse \
    -netdev user,id=net0 \
    -device e1000-82545em,netdev=net0,id=net0,mac=52:54:00:c9:18:27 \
    -device ich9-ahci,id=sata \
    -drive id=ESP,if=none,format=qcow2,file=ESP.qcow2 \
    -device ide-hd,bus=sata.2,drive=ESP \
    -drive id=InstallMedia,format=raw,if=none,file=BaseSystem.img \
    -device ide-hd,bus=sata.3,drive=InstallMedia \
    -drive id=SystemDisk,if=none,file=MyDisk.qcow2 \
    -device ide-hd,bus=sata.4,drive=SystemDisk \


If I remove (only), -accel whpx \ => Then it all runs, just very slowly ;-).

Any suggestions, things to try?

Thanks!

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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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