All of lore.kernel.org
 help / color / mirror / Atom feed
From: "H. Peter Anvin" <hpa@zytor.com>
To: Brian Gerst <brgerst@gmail.com>, Ingo Molnar <mingo@kernel.org>
Cc: the arch/x86 maintainers <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Borislav Petkov <bp@alien8.de>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 0/5] x86: IA32 emulation cleanups
Date: Thu, 05 Mar 2015 14:38:01 -0800	[thread overview]
Message-ID: <54F8DAC9.1070304@zytor.com> (raw)
In-Reply-To: <CAMzpN2ik2R_402PxWKPhAF95hQ=XTqY9TJsz4-+EKWFhJkSwrg@mail.gmail.com>

On 03/03/2015 10:22 PM, Brian Gerst wrote:
> 
> It looks like most cases can simply be replaced.  There are some
> subtle relations with the x32 ABI though, and that will take some time
> to sort out.
> 

Yes, some aspects of CONFIG_COMPAT is used also by x32.

Overall the current Linux kernel handles the case of *more* than two
ABIs extremely poorly.  It is not the only case of more than two ABIs,
either; consider ARM for example.

	-hpa



      reply	other threads:[~2015-03-05 22:38 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-04  3:31 [PATCH 0/5] x86: IA32 emulation cleanups Brian Gerst
2015-03-04  3:31 ` [PATCH 1/5] x86: Remove compat_ni_syscall() Brian Gerst
2015-03-04  5:27   ` [tip:x86/asm] x86/compat: " tip-bot for Brian Gerst
2015-03-04  3:31 ` [PATCH 2/5] x86: Merge native and compat 32-bit syscall tables Brian Gerst
2015-03-04  5:27   ` [tip:x86/asm] x86/compat: " tip-bot for Brian Gerst
2015-03-04  3:31 ` [PATCH 3/5] x86: Remove sys32_vm86_warning Brian Gerst
2015-03-04  5:28   ` [tip:x86/asm] x86/compat: " tip-bot for Brian Gerst
2015-03-04  3:31 ` [PATCH 4/5] x86: Use generic compat audit code Brian Gerst
2015-03-04  5:14   ` Ingo Molnar
2015-03-04  6:39     ` Brian Gerst
2015-03-04  7:09       ` Ingo Molnar
2015-03-04 14:52       ` David Drysdale
2015-03-04  3:31 ` [PATCH 5/5] x86: Clean up ia32/Makefile Brian Gerst
2015-03-04  5:24 ` [PATCH 0/5] x86: IA32 emulation cleanups Ingo Molnar
2015-03-04  6:22   ` Brian Gerst
2015-03-05 22:38     ` H. Peter Anvin [this message]

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=54F8DAC9.1070304@zytor.com \
    --to=hpa@zytor.com \
    --cc=bp@alien8.de \
    --cc=brgerst@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=torvalds@linux-foundation.org \
    --cc=x86@kernel.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.