Re: [PATCH v2] target/arm: fix exception syndrome for AArch32 bkpt insn

[Peter Maydell]

On Sat, 27 Jan 2024 at 20:30, Jan Klötzke <jan.kloetzke@kernkonzept.com> wrote:
>
> Debug exceptions that target AArch32 Hyp mode are reported differently
> than on AAarch64. Internally, Qemu uses the AArch64 syndromes. Therefore
> such exceptions need to be either converted to a prefetch abort
> (breakpoints, vector catch) or a data abort (watchpoints).
>
> Signed-off-by: Jan Klötzke <jan.kloetzke@kernkonzept.com>
> ---
> v2:
>  * Refactor watchpoint syndrome rewriting
>  * Drop ARM_EL_ISV from watchpoint syndrome
>
>  target/arm/helper.c   | 18 ++++++++++++++++++
>  target/arm/syndrome.h |  8 ++++++++
>  2 files changed, 26 insertions(+)
>

Applied to target-arm.next, thanks (with a cc: qemu-stable header added).

By the way, if you're interested in incorrect syndromes with
AArch32 Hyp mode, the other one I know about is
https://gitlab.com/qemu-project/qemu/-/issues/1153
which describes some issues with the syndrome for traps
of VFP or Neon instructions. I don't know if that affects
your use-case.

thanks
-- PMM