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Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support
Date 2016-12-08 21:30 +0100
Message-ID <sMduh-2eY-5@gated-at.bofh.it> (permalink)
References <sM9K2-8la-5@gated-at.bofh.it> <sM9K2-8la-3@gated-at.bofh.it> <sMdaV-254-15@gated-at.bofh.it> <sMdaV-254-17@gated-at.bofh.it>
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On Thu, Dec 08, 2016 at 12:08:53PM -0800, Linus Torvalds wrote:
> Especially since that's some of the ugliest inline asm ever due to the
> nasty BX handling.

Yeah, about that: why doesn't gcc handle that for us like it would
handle a clobbered register? I mean, it *should* know that BX is live
when building with -fPIC... The .ifnc thing looks really silly.

Hmmm.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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Thread

[RFC, PATCHv1 15/28] x86: detect 5-level paging support "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-12-08 17:30 +0100
  Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support Borislav Petkov <bp@alien8.de> - 2016-12-08 21:10 +0100
    Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-08 21:10 +0100
      Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support Borislav Petkov <bp@alien8.de> - 2016-12-08 21:30 +0100
    Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support "Kirill A. Shutemov" <kirill@shutemov.name> - 2016-12-09 16:40 +0100
      Re: [RFC, PATCHv1 15/28] x86: detect 5-level paging support Borislav Petkov <bp@alien8.de> - 2016-12-09 17:40 +0100

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