Il 20/06/2014 11:10, Aurelien Jarno ha scritto:
> My idea was to add a machines-specific option umkernel=on, and require it
> in order to run KVM. Later we can add umkernel=on support for TCG as well,
> while umkernel=off with KVM requires virtualization extensions.
>
> The same option can disable pflash boot.
>
> What do you think?
For what I understand the current KVM support in MIPS uses trap and
emulate and thus doesn't need hardware support, just a recent kernel
with the option enabled.
Yes, but work to support virtualization extensions is underway. Patches
were posted a few months ago.
That's why I do wonder if there is a real point
in supporting UM kernels in TCG mode.
Debugging, mainly. It is sometimes useful to compare TCG with KVM on
x86, and I suppose it could be the same on MIPS.
Paolo
