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Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86 hardware_subarch

From Andy Lutomirski <luto@amacapital.net>
Newsgroups linux.kernel
Subject Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86 hardware_subarch
Date 2016-02-24 17:50 +0100
Message-ID <r5KNt-7fP-27@gated-at.bofh.it> (permalink)
References (1 earlier) <r5fzZ-1Xv-41@gated-at.bofh.it> <r5gZ4-2Qo-13@gated-at.bofh.it> <r5ixQ-3Z2-19@gated-at.bofh.it> <r5s4a-2dy-15@gated-at.bofh.it> <r5D9g-1Oq-15@gated-at.bofh.it>
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On Feb 24, 2016 12:33 AM, "Ingo Molnar" <mingo@kernel.org> wrote:
>
> For hard coded platform quirks I'd suggest we add x86_platform.quirks flags. For
> example the F00F hack for Xen could be done via:
>
>         x86_platform.quirks.idt_remap = 0;
>

Don't we unconditionally remap the IDT?  I think Kees did it for
general purpose hardening due to our complete inability to hide the
IDT address. I.e. I think we can remove the f00f condition entirely.

Other than that, I agree with you.

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Thread

[PATCH v3 00/11] x86/init: replace paravirt_enabled() were possible "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-02-23 08:30 +0100
  [PATCH v3 09/11] x86/boot: add BIT() to boot/bitops.h "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-02-23 08:30 +0100
  [PATCH v3 01/11] x86/boot: enumerate documentation for the x86 hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-02-23 08:30 +0100
    Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch Ingo Molnar <mingo@kernel.org> - 2016-02-23 10:00 +0100
      Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-02-23 11:40 +0100
        Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-02-23 21:50 +0100
          Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch Ingo Molnar <mingo@kernel.org> - 2016-02-24 09:40 +0100
            Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86 hardware_subarch Andy Lutomirski <luto@amacapital.net> - 2016-02-24 17:50 +0100
              Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86 hardware_subarch Andy Lutomirski <luto@amacapital.net> - 2016-02-25 02:30 +0100
              Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch Ingo Molnar <mingo@kernel.org> - 2016-02-25 09:20 +0100
            Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-03-02 01:50 +0100
              Re: [PATCH v3 01/11] x86/boot: enumerate documentation for the x86  hardware_subarch "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-03-02 20:50 +0100

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