At present the trap handler returns to M-mode only. Change to
returning to previous privilege level instead.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
arch/riscv/cpu/mtrap.S | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/riscv/cpu/mtrap.S b/arch/riscv/cpu/mtrap.S
index 6c0eac6..c9010c7 100644
--- a/arch/riscv/cpu/mtrap.S
+++ b/arch/riscv/cpu/mtrap.S
@@ -68,9 +68,6 @@ trap_entry:
jal handle_trap
csrw mepc, a0
- /* Remain in M-mode after mret */
- li t0, MSTATUS_MPP
- csrs mstatus, t0
LREG x1, 1 * REGBYTES(sp)
LREG x3, 3 * REGBYTES(sp)
LREG x4, 4 * REGBYTES(sp)
--
2.7.4
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