Comment 7 for bug 1278531
Revision history for this message
| Serge Hallyn (serge-hallyn) wrote Re: nested kvm fails with trust and upstream kernels | #7 |
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35a32c5
(Get the code!)
Note that "what we can do about saucy" - I don't really care, except in as much as debugging it will help to fix it in trusty.
You said:
>From your description it sounds like some nested VMX (again) but just to make
>sure I got this right. The failing combination is:
> - Host: P user-space, T kernel; Lvl1: P user-space, P kernel; Lvl2: T user-space, T kernel
-> Host: T user-space, T kernel; Lvl1: T user-space, T kernel; Lvl2: T user-space, T kernel
Right, except that Lvl2 can be anything. precise, quantal trusty, all fail, all in the same way, in lvl2.
So the point is that levels 1 and 2 don't matter, nor does the qemu userspace
on the host. Only the host kernel matters.