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Update hptwAccessFault to generate additional hptw access faults during ifu fetches #1012

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merged 1 commit into from
Oct 14, 2024
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Update hptwAccessFault to generate additional hptw access faults during ifu fetches #1012

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27 changes: 26 additions & 1 deletion tests/coverage/hptwAccessFault.S
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,32 @@ main:
lw t1, 0(t0) # this load is a valid virtual address, but the page table will access an invalid address so it should cause a load access fault
li t1, 0x00008067 # this store is a valid virtual address, but the page table will access an invalid address so it should cause a store access fault
add t0, t0, t2
sw t1, 0(t0)
sw t1, 0(t0)

j jumppoint

jumppoint:
.align 6 # aligns to cache line size
sw t1, 0(t0)
sw t1, 4(t0)
sw t1, 8(t0)
sw t1, 12(t0)
sw t1, 16(t0)
sw t1, 20(t0)
sw t1, 24(t0)
sw t1, 28(t0)
sw t1, 32(t0)
sw t1, 36(t0)
sw t1, 40(t0)
sw t1, 44(t0)
sw t1, 48(t0)
sw t1, 52(t0) # this one causes a concurrent I$ miss with HPTW access exception (store access exception)
sw t1, 56(t0)
lw t3, 0(t0)
lw t3, 4(t0)
lw t3, 8(t0)
lw t3, 12(t0)
lw t3, 16(t0)

fence.I

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