Hi Jordan,
On 7/20/20 12:24 PM, Jordan Niethe wrote:
On Fri, Jul 17, 2020 at 2:11 PM Ravi Bangoria
<ravi.bango...@linux.ibm.com> wrote:
Power10 has removed 512 bytes boundary from match criteria. i.e. The watch
range can cross 512 bytes boundary.
It looks like this change is not mentioned in ISA v3.1 Book III 9.4
Data Address Watchpoint. It could be useful to mention that in the
commit message.
Yes, ISA 3.1 Book III 9.4 has a documentation mistake and hopefully it
will be fixed in the next version of ISA. Though, this is mentioned in
ISA 3.1 change log:
Multiple DEAW:
Added a second Data Address Watchpoint. [H]DAR is
set to the first byte of overlap. 512B boundary is
removed.
I'll mention this in the commit description.
Also I wonder if could add a test for this to the ptrace-hwbreak selftest?
Yes, I already have a selftest for this in perf-hwbreak. Will send that soon.
Thanks,
Ravi
