+bad2:
+ .word 0
+ j fail
+
+ # Skip the rest of the test if S-mode is not present.
+ li t0, MSTATUS_MPP
+ csrc mstatus, t0
+ li t1, (MSTATUS_MPP & -MSTATUS_MPP) * PRV_S
+ csrs mstatus, t1
+ csrr t2, mstatus
+ and t2, t2, t0
+ bne t1, t2, pass
+
+ # Test vectored interrupts if they are supported.
+test_vectored_interrupts:
+ csrwi mip, MIP_SSIP
+ csrwi mie, MIP_SSIP
+ la t0, mtvec_handler + 1
+ csrrw s0, mtvec, t0
+ csrr t0, mtvec
+ andi t0, t0, 1
+ beqz t0, msip
+ csrsi mstatus, MSTATUS_MIE
+1:
+ j 1b
+msip:
+ csrw mtvec, s0
+
+ # Delegate supervisor software interrupts so WFI won't stall.
+ csrwi mideleg, MIP_SSIP
+ # Enter supervisor mode.
+ la t0, 1f
+ csrw mepc, t0
+ li t0, MSTATUS_MPP
+ csrc mstatus, t0
+ li t1, (MSTATUS_MPP & -MSTATUS_MPP) * PRV_S
+ csrs mstatus, t1
+ mret
+
+1:
+ # Make sure WFI doesn't trap when TW=0.
+ wfi
+bad3:
+ .word 0
+ j fail
+
+bad4:
+ # Make sure WFI does trap when TW=1.
+ wfi
+ j fail
+
+ # Make sure SFENCE.VMA and sptbr don't trap when TVM=0.
+ sfence.vma
+ csrr t0, sptbr
+bad5: