Lucas Duarte Prates e4f1c52832 [AArch64] Assembly support for the Armv9.5-A Memory System Extensions (#76237) ...

This implements assembly support for the Memory Systems Extensions
introduced as part of the Armv9.5-A architecture version.
The changes include:
* New subtarget feature for FEAT_TLBIW.
* New system registers for FEAT_HDBSS:
  * HDBSSBR_EL2 and HDBSSPROD_EL2.
* New system registers for FEAT_HACDBS:
  * HACDBSBR_EL2 and HACDBSCONS_EL2.
* New TLBI instructions for FEAT_TLBIW:
  * VMALLWS2E1(nXS), VMALLWS2E1IS(nXS) and VMALLWS2E1OS(nXS).
* New system register for FEAT_FGWTE3:
  * FGWTE3_EL3.

2023-12-22 14:40:29 +00:00

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