This patchset tries to fix some problems in current implementation for mstatus.MPP

The port is available here:
https://github.com/plctlab/plct-qemu/tree/plct-mpp-fix-v2

v2:
* Modify commit message and add comment to specify MPP field becomes a WARL field since priv version 1.11 in patch 2
* rebase on riscv-to-apply.next

Weiwei Li (2):
  target/riscv: Fix the mstatus.MPP value after executing MRET
  target/riscv: Legalize MPP value in write_mstatus

 target/riscv/cpu_helper.c |  5 +----
 target/riscv/csr.c        | 18 ++++++++++++++++++
 target/riscv/op_helper.c  |  3 ++-
 3 files changed, 21 insertions(+), 5 deletions(-)

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2.25.1