Hello Robert Scheffel,
I'd like you to reexamine a change. Please visit
https://gem5-review.googlesource.com/11136
to look at the new patch set (#4).
Change subject: arch-riscv: Add xret instructions
......................................................................
arch-riscv: Add xret instructions
This patch adds the uret, sret, and mret instructions for use with
returning from user-, supervisor-, and machine-level code, respectively.
These instructions read the STATUS register to determine the previous
privilege level and modify it to re-enable interrupts at the old
privilege level. These instructions can only be executed at the
corresponding privilege level or higher.
Change-Id: I6125c31cb2fdcc3f83eca86910519e81ffbbbfc9
---
M src/arch/riscv/faults.hh
M src/arch/riscv/isa/decoder.isa
M src/arch/riscv/registers.hh
3 files changed, 110 insertions(+), 58 deletions(-)
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I6125c31cb2fdcc3f83eca86910519e81ffbbbfc9
Gerrit-Change-Number: 11136
Gerrit-PatchSet: 4
Gerrit-Owner: Alec Roelke <alec.roe...@gmail.com>
Gerrit-Reviewer: Alec Roelke <alec.roe...@gmail.com>
Gerrit-Reviewer: Robert Scheffel <robert.scheff...@tu-dresden.de>
Gerrit-CC: Jason Lowe-Power <ja...@lowepower.com>
Gerrit-MessageType: newpatchset
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