[Qemu-devel] Apple Hypervisor - unimplemented handler

[Programmingkid]

When running Windows 7 using "-M accel=hvf --cpu host", Windows 7 would crash. 
What was printed to the console was this:

Unimplemented handler (fffff8000c0c2050) for 0 (f c3) 

This message is from target/i386/hvf/x86_emu.c. The c3 seems to indicate this 
is a problem with the MOVNTI or RETN instruction.

This is the webpage I used for figuring out this: 
http://ref.x86asm.net/coder32.html. A search of the page shows another 
instruction with the c3 opcode called RETN. So I'm not 100% sure which 
instruction is the problem instruction.

In the file target/i386/hvf/x86_decode.c, this line of code makes me think it 
is RETN:

{0xc3, X86_DECODE_RET_NEAR, 0, false, NULL,
     NULL, NULL, NULL, NULL, RFLAGS_MASK_NONE}

Any help with this issue would be appreciated.

Thank you.