From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: yalin wang <yalin.wang2010@gmail.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
"x86@kernel.org" <x86@kernel.org>,
Will Deacon <Will.Deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Mark Salter <msalter@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH V4 2/3] arm64: support initrd outside kernel linear map
Date: Thu, 8 Oct 2015 10:40:55 +0100 [thread overview]
Message-ID: <20151008094055.GC32532@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <FC378C09-F140-4A62-9FFA-09293E65E866@gmail.com>
On Thu, Oct 08, 2015 at 05:18:14PM +0800, yalin wang wrote:
> is it also possible to implement it on ARM platforms?
> ARM64 platform dona??t have HIGH_MEM zone .
> but ARM platform have .
> i remember boot loader must put init rd into low memory region,
> so if some boot loader put init rd into HIGH men zone
> we can also relocate it to low men region ?
> then boot loader dona??t need care about this ,
> and since vmalloc= boot option will change HIGH mem region size,
> if we can relocate init rd , boot loader dona??t need care about init rd load address,
> when change vmalloc= boot options .
I'd be more inclined to say yes if the kernel wasn't buggering around
passing virtual addresses (initrd_start) of the initrd image around,
but instead used a physical address. initrd_start must be a lowmem
address.
--
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2015-10-08 9:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-17 17:01 [PATCH V4 0/3] mm: Add generic copy from early unmapped RAM Mark Salter
2015-08-17 17:01 ` [PATCH V4 1/3] mm: add utility for early copy from unmapped ram Mark Salter
2015-08-17 17:01 ` [PATCH V4 2/3] arm64: support initrd outside kernel linear map Mark Salter
2015-08-18 8:56 ` Will Deacon
2015-09-08 11:31 ` Mark Rutland
2015-10-06 17:11 ` Mark Rutland
2015-10-06 17:16 ` Mark Salter
2015-10-08 8:49 ` Christoffer Dall
2015-10-08 9:18 ` yalin wang
2015-10-08 9:40 ` Russell King - ARM Linux [this message]
2015-08-17 17:01 ` [PATCH V4 3/3] x86: use generic early mem copy Mark Salter
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=20151008094055.GC32532@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=Catalin.Marinas@arm.com \
--cc=Will.Deacon@arm.com \
--cc=akpm@linux-foundation.org \
--cc=ard.biesheuvel@linaro.org \
--cc=arnd@arndb.de \
--cc=christoffer.dall@linaro.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mark.rutland@arm.com \
--cc=msalter@redhat.com \
--cc=x86@kernel.org \
--cc=yalin.wang2010@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).