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.
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