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QEMU: cannot boot with CPU > Ivy Bridge

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I have a successfully setup macOS in a QEMU VM. bochs-display works splendidly given Apple has kexts to support it, and passing through my AMD GPU works too.

 

However, I cannot even boot the thing if I specify my CPU to be Haswell or above. There is nothing in the console, nothing in NVRAM, nothing nowhere, no panic too, just freeze. Clover starts loading kernel, and that's it.

 

The host is Kaby Lake, so I doubt the CPU is incapable.

 

I'm at a loss as to what to even check for. Fake CPU ID? Some kernel flags? Were there any crucial MSRs that appeared? (kernel and QEMU are set to ignore MSR writes)

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