[$] Why RISC-V doesn't (yet) support KVM

The RISC-V CPU architecture has been
gaining prominence for some years; its relatively open nature makes it an
attractive platform on which a number of companies have built products.
Linux supports
RISC-V well, but there is one gaping hole: there is no support for
virtualization with KVM,
despite the fact that a high-quality
implementation exists. A recent attempt to add that support is shining
some light on a part of the ecosystem that, it seems, does not work quite
as well
as one would like.