You can dump whole struct just a binary array(don't look into it in your
program), and get sizeof(vmxctx) via ioctl return. It should enough to
Then if AMD SVM mode will have different values on the structure, your
implementation won't break.

Does it make sense? > Peter, Neel

I was thinking of something a bit more abstract. There shouldn't be any need to encode VMCS/SVM info in the save/restore state - that can be recreated on demand. For instance, bhyveload can pass off execution state to bhyve without having any knowledge of VMCS/SVM.

You'd need to represent the entire CPU register state of the VM, memory, and also enough for the virtual devices to be able to resurrect state. Plus, there needs to be some versioning to allow suspend/resume between different revs of bhyve.


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