On Fri, 12 Jan 2018 00:09:16 PST (-0800), h...@lst.de wrote:
On Fri, Jan 12, 2018 at 07:24:54AM +1300, Michael Clark wrote:
I'm going to be restoring branches for bbl and riscv-linux that work again
priv 1.9.1. There are still other emulators and RTL that support priv1.9.1.
Folk will have silicon against different versions of spec going forward.
Likewise going forward we are still going to need to support v1.10 behavior
when v1.11 is published. i.e. priv v1.10 mode is going to have to hide any
additions made in priv v1.11. I use priv v1.9.1 during my QEMU testing.
Hopefully, future changes are additive vs breaking...
That was the plan for 1.10+. And I thought that was because 1.10
is what people actually started implementing for real, but based on
the comment from Palmer that is not actually true. Sigh..
I guess at least for Linux we'd then want to make sure 1.9.1 support
is in mainline as well, probably based off a config option.
I suppose in theory yes, but as far as I know there's no 1.9.1 chips with MMUs
And if someone has a a good contact to the RISC-V website admins
it would be very helpful to restore a link to the specification as well
so that things other than the direct link work.
I sent an email.
