Re: [PATCH] arm/monitor: Add support for 'info tlb' command

[Dr. David Alan Gilbert]

* Peter Maydell (peter.maydell@linaro.org) wrote:
> On Fri, 13 Nov 2020 at 09:59, Changbin Du <changbin.du@gmail.com> wrote:
> >
> > This adds hmp 'info tlb' command support for the arm platform.
> > The limitation is that this only implements a page walker for
> > ARMv8-A AArch64 Long Descriptor format, 32bit addressing is
> > not supported yet.
> 
> "info tlb" needs its own entirely independent implementation
> of a page-table walk? I see this is how x86 has done it ,but
> it seems like a recipe for the info command being perpetually
> behind what we actually implement...

I think the challenge is you want 'info tlb' to be quite easy
to read from a debuggers point of view and robust at pointing out
things that are odd; I'd hope at least you can use most of the macros
to extract fields etc

Dave

> thanks
> -- PMM
> 
-- 
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK