Re: [PATCH 11/26] hw/intc/arm_gicv3_its: Use 1ULL when shifting by (DTE.SIZE + 1)

[Richard Henderson]

On 12/11/21 11:11 AM, Peter Maydell wrote:
  
      if (dte_valid) {
-        max_eventid = 1UL << (FIELD_EX64(dte, DTE, SIZE) + 1);
+        max_eventid = 1ULL << (FIELD_EX64(dte, DTE, SIZE) + 1);

Without changing the type of max_eventid, I think it'd be easiest to fix the off-by-one 
bug by not changing the comparisions, but changing this computation.  E.g.

  max_eventid = (2 << FIELD_EX64(dte, DTE, SIZE)) - 1;

so that the value becomes UINT32_MAX for SIZE=31.



r~