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Re: [Xen-devel] [PATCH for-4.12 v2 2/2] xen/arm: Stop relocating Xen

On 14.12.18 18:26, Julien Grall wrote:
Are you using arm64 or arm32?

I'm using arm64.
But also speak about arm32.

I don't understand what you mean. Looking at your log, Xen is relocated at the
end of the last bank. This is the expected behavior in unstable.

Yes, I miscounted zeroes, and recalled that part before your answer  ;)

This not the first time part of answer is mangled with my e-mail. This is making
really difficult to follow the conversion. Can you please configure your e-mail
client to do proper quote/reply?

OK. Will check it.

How were you switching between the page-tables? A proper solution would require
to switch between page-tables using an identify mappings. This is far more
complicate than what is worth here.

Sorry for my ignorance, what "identify mappings" stands for? Any links for the 
problem description?
I don't remember such details of implementation but pretty sure we didn't mean 
that thing. It was about 3 years ago in a different company on a arm32 SoC.

Xen is free to allocate anything below 4GB. This is nothing new. But you should
not have two 128MB chunks stolen because of modules here. If that's the case
then there is a bug in Xen that should be fixed.

They are stolen from 1:1 memory allocation because of `allocate_memory_11()` 
design and implementation.

Andrii Anisov.

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