add HTIF documentation

Open axel-h opened this issue 4 years ago • 1 comments

Having a bit of documentation for the HTIF would be good. Currently this still feels a bit like a undocumented useful hack that has been there of quite some time (see e.g. https://github.com/ucb-bar/riscv-sodor/issues/13). What is guaranteed to work actually?

Jan 14 '22 00:01 axel-h

Maybe you can look at the QEMU HTIF emulation codes @ https://github.com/qemu/qemu/blob/master/hw/char/riscv_htif.c#L134

There are some decriptions there.

Jul 22 '23 01:07 lbmeng