QEMU

  1. Bug #1838277
  2. Comment #18

Comment 18 for bug 1838277

Revision history for this message
Elouan Appéré (elouan-appere) wrote : Re: qemu-system-aarch64: regression: TCG sometimes using wrong values for VBAR_EL2 despite it being correctly reported to GDB

To be precise, as I was doing my own investigation, this only happens when *both* the following hold:

- a breakpoint instruction is executed in EL2 (as you mentionned).
- ELD is EL1. This does **not** happen **if ELD is EL2**, after setting e.g. MDCR_EL2.TDE to 1.

As mentionned above, it's a regression in implementing "AArch64 Self-hosted Debug, D2.3 Routing debug exceptions".