This patchset tries to fix some problems in current implementation for mstatus.MPP. - set to the least-privileged supported mode (U if U-mode is implemented, else M) after executing mret - legalize mpp when write to mstatus
The port is available here: https://github.com/plctlab/plct-qemu/tree/plct-mpp-fix 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 | 14 ++++++++++++++ target/riscv/op_helper.c | 3 ++- 3 files changed, 17 insertions(+), 5 deletions(-) -- 2.25.1
