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PTW: traverse check GPA bits higher than HGATP mode only if valid #3625

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Apr 23, 2024
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PTW: traverse check GPA bits higher than HGATP mode only if valid #3625

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2 changes: 1 addition & 1 deletion src/main/scala/rocket/PTW.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -694,7 +694,7 @@ class PTW(n: Int)(implicit edge: TLEdgeOut, p: Parameters) extends CoreModule()(
when (do_both_stages && !stage2) { do_switch := true.B }
count := count + 1.U
}.otherwise {
val gf = stage2 && !stage2_final && !pte.ur()
val gf = (stage2 && !stage2_final && !pte.ur()) || (pte.v && pte.reserved_for_future === 0.U && invalid_gpa)
val ae = pte.v && invalid_paddr
val pf = pte.v && pte.reserved_for_future =/= 0.U
val success = pte.v && !ae && !pf && !gf
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