From: swarren@wwwdotorg.org (Stephen Warren)
To: linux-arm-kernel@lists.infradead.org
Subject: Single zImage and A15/LPAE
Date: Mon, 08 Oct 2012 17:02:13 -0600 [thread overview]
Message-ID: <50735B75.8070109@wwwdotorg.org> (raw)
I'm curious what the single-zImage story is for Cortex A15 CPUs with
LPAE extensions; IIRC, LPAE entails a different page table format and so
isn't going to co-exist in the same zImage as non-LPAE (although doesn't
x86 support that now; I though separate LPAE/non-LPAE kernels went away
there?)
Presumably though, the intent is to be able to disable LPAE in Kconfig,
and create a single zImage with both A9 and A15 support, or to enable
LPAE and only support A15 with LPAE, and which you'd choose to do simply
depends on whether you care about LPAE based on how much RAM the boards
you want to support have (or perhaps also what physical address your
peripherals are at)?
next reply other threads:[~2012-10-08 23:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-08 23:02 Stephen Warren [this message]
2012-10-09 2:18 ` Single zImage and A15/LPAE Nicolas Pitre
2012-10-09 7:51 ` Arnd Bergmann
2012-10-09 14:17 ` Dave Martin
2013-05-29 0:28 ` Kukjin Kim
2013-05-29 1:54 ` Nicolas Pitre
2013-05-29 2:02 ` Olof Johansson
2013-05-29 2:04 ` Olof Johansson
2013-05-29 13:01 ` Arnd Bergmann
2013-05-29 15:15 ` Catalin Marinas
2013-05-29 21:51 ` Arnd Bergmann
2013-05-30 16:56 ` Catalin Marinas
2013-07-16 4:01 ` Kukjin Kim
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=50735B75.8070109@wwwdotorg.org \
--to=swarren@wwwdotorg.org \
--cc=linux-arm-kernel@lists.infradead.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.