This is the 3rd version of the patch set, updated as per the review from Richard and Alistair, and updated for current top of tree. Parts 1 and 2 are the same. Part 3 is smaller because some of it was moved to part 5. Part 5 is bigger because it received part of part 3. Parts 4 and 5 have changed because the csr support was rewritten. The illegal instruction traps are no longer inside the csr support code, but it still has mode checks that I need to disable, so I still need a debugger mode, but it doesn't do as much as before. Also, what was one function is now about one hundred functions, so rather than add a debugger parameter to lots of functions that don't need it, I put it in the CPURISCVState struct. This also helps fix a bug, because debugger mode is only appropriate for system qemu, and should not be enabled for user qemu. The new patch set gets this right. As a result of this, part 4 also ends up smaller, and part 5 is rewritten a bit to use the new interface to the csr support. Otherwise it is effectively the same code as before.
Jim
