suspend/resume on BHyVe

[Takuya ASADA]

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
suspend/resume.
Then if AMD SVM mode will have different values on the structure, your
implementation won't break.

Does it make sense? > Peter, Neel

And, AMD SVM's vmxctx will not have much difference than Intel's one, I
guess.
(VMCS/VMCB layout are differ, though. But it's different topic.)

2013年4月2日火曜日 Iori YONEJI fivo.11235813 at gmail.com:

> Hi all,
>
> I couldn't spare much time to consider about this topic because I have
> to move to new house, but now I'm OK.
>
> I'm implementing registers-save feature including:
>   1. libvmmapi with get_vmxctx
>   2. kernel supports of 1.
>   3. user-land hack using 1, that saves registers and some
> configurations into (possibly msgpack) binary file.
>
> But I noticed that vmxctx is depending on Intel VT-x, and we also need
> to support AMD SVM,
> so I need common struct registers.
>
> I heard about SVM support but it's not in my repository copy(Revision:
> 248994),
> how much do I have to care about AMD?
>