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PTW: traverse check GPA bits higher than HGATP mode only if leaf #3651

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merged 1 commit into from
Jun 27, 2024
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PTW: traverse check GPA bits higher than HGATP mode only if leaf #3651

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4 changes: 2 additions & 2 deletions src/main/scala/rocket/PTW.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -695,7 +695,7 @@ 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()) || (pte.v && pte.reserved_for_future === 0.U && invalid_gpa)
val gf = (stage2 && !stage2_final && !pte.ur()) || (pte.leaf() && 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
Expand Down Expand Up @@ -723,7 +723,7 @@ class PTW(n: Int)(implicit edge: TLEdgeOut, p: Parameters) extends CoreModule()(
}

resp_ae_ptw := ae && count < (pgLevels-1).U && pte.table()
resp_ae_final := ae
resp_ae_final := ae && pte.leaf()
resp_pf := pf && !stage2
resp_gf := gf || (pf && stage2)
resp_hr := !stage2 || (!pf && !gf && pte.ur())
Expand Down
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