All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andrii Anisov <andrii.anisov@gmail.com>
To: Julien Grall <Julien.Grall@arm.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Cc: Matthew Daley <mattd@bugfuzz.com>,
	"sstabellini@kernel.org" <sstabellini@kernel.org>
Subject: Re: [PATCH for-4.12 v2 2/2] xen/arm: Stop relocating Xen
Date: Fri, 14 Dec 2018 19:46:44 +0200	[thread overview]
Message-ID: <9850ed66-1a28-4af4-7306-6c0922900ce1@gmail.com> (raw)
In-Reply-To: <d0e0d122-b389-8fa0-df24-80cb1fe926c7@arm.com>



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.

-- 
Sincerely,
Andrii Anisov.

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

  parent reply	other threads:[~2018-12-14 17:46 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-14 11:44 [PATCH for-4.12 v2 0/2] xen/arm: mm: Boot fixes Julien Grall
2018-12-14 11:44 ` [PATCH for-4.12 v2 1/2] xen/arm: mm: Use pte_xen_addr when creating xen entries Julien Grall
2018-12-14 21:44   ` Stefano Stabellini
2018-12-14 11:44 ` [PATCH for-4.12 v2 2/2] xen/arm: Stop relocating Xen Julien Grall
2018-12-14 15:52   ` Andrii Anisov
2018-12-14 16:09     ` Andrii Anisov
2018-12-14 16:26     ` Julien Grall
2018-12-14 17:24       ` Andrii Anisov
2018-12-14 17:48         ` Julien Grall
2018-12-17 11:11           ` Julien Grall
2018-12-17 16:02             ` Andrii Anisov
2018-12-17 16:56               ` Julien Grall
2018-12-17 17:57             ` Stefano Stabellini
2018-12-17 18:03               ` Julien Grall
2018-12-17 13:14           ` Andrii Anisov
2018-12-17 13:38             ` Julien Grall
2018-12-17 15:55               ` Andrii Anisov
2018-12-17 17:02                 ` Julien Grall
2018-12-17 17:34                   ` Andrii Anisov
2018-12-18 12:09                     ` Andrii Anisov
2018-12-18 13:13                       ` Julien Grall
2018-12-14 17:46       ` Andrii Anisov [this message]
2018-12-14 18:04         ` Julien Grall
2018-12-17 15:54           ` Andrii Anisov
2018-12-17 17:03             ` Julien Grall
2018-12-14 16:13   ` Andrii Anisov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=9850ed66-1a28-4af4-7306-6c0922900ce1@gmail.com \
    --to=andrii.anisov@gmail.com \
    --cc=Julien.Grall@arm.com \
    --cc=mattd@bugfuzz.com \
    --cc=sstabellini@kernel.org \
    --cc=xen-devel@lists.xen.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.