commit 2595fe6b2834fa0af15baf6f5ad4a8f523c838a6
author Alec Roelke <ar4jc@virginia.edu> Sun Feb 18 22:28:44 2018 -0500
committer Alec Roelke <ar4jc@virginia.edu> Sat Jul 28 18:42:43 2018 +0000
tree 95b61f9c62b0ed8c05f8829daaf303cf6f7d61ad
parent 0a7193c1712ceba021732e4ad2b4dfb0a10394cc

arch-riscv: Add support for fault handling

This patch adds support for handling RISC-V faults, including tracking
current and previous execution privilege, correctly switching to
the privilege mode specified by CSRs, and setting/storing the PC.  It
also includes changes introduced by patch #9821, which disables
interrupts during handling of a fault.

Change-Id: Ie9c0f29719620c20783540d3bdb2db44f6114fc9
Reviewed-on: https://gem5-review.googlesource.com/9161
Maintainer: Alec Roelke <ar4jc@virginia.edu>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>