[Qemu-devel] [Bug 1843254] [NEW] HCR.TID3 traps are not implemented

[Udo Steinberg]

Public bug reported:

On ARM (aarch64), HCR_EL2.TID3 [bit18] is supposed to trap ID group 3,
which includes the ID_AA64{PFR,DFR,ISAR,MMFR,AFR}*_EL1 registers.
However, setting that HCR bit has no effect and accesses to those ID
registers are not trapped to EL2 with an EC syndrome value of 0x18.

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: arm virtualization

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https://bugs.launchpad.net/bugs/1843254

Title:
  HCR.TID3 traps are not implemented

Status in QEMU:
  New

Bug description:
  On ARM (aarch64), HCR_EL2.TID3 [bit18] is supposed to trap ID group 3,
  which includes the ID_AA64{PFR,DFR,ISAR,MMFR,AFR}*_EL1 registers.
  However, setting that HCR bit has no effect and accesses to those ID
  registers are not trapped to EL2 with an EC syndrome value of 0x18.

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