[Qemu-devel] Saving and restoring CPU state

[eady]

I'm still looking for any suggestions on how to save and restore the 
target cpu state from within a custom instruction in op.c. I basically 
want a custom instruction to save the cpu state to a data structure and 
then continue on normally, a second custom instruction would then be 
used to restore the cpu state from the saved data structure at a later 
time thereby rolling back the execution of the cpu. I've tried saving 
and restoring env->eip within my custom instructions but this has no effect.

Thanks,
Nuri
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> [Qemu-devel] Saving and restoring CPU state
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> Sun, 08 Apr 2007 16:38:14 -0500
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> Thunderbird 1.5.0.9 (X11/20070104)
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> I'm experimenting a bit with QEMU and am in need of a way to save and 
> restore X86 CPU state including the pc so that the processor state can 
> be rolled back to re execute from the previous point. I've found the 
> functions "cpu_x86_fsave" and "cpu_restore_state" but do not understand 
> them well enough to use them. Does anyone have tips on how to store the 
> processor state in an auxiliary data structure and then restore it at a 
> later point?
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> Thanks
> Nuri
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