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Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for temporary mapping

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On Mon, Aug 1, 2016 at 5:36 PM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> On Monday, August 01, 2016 10:07:59 AM Thomas Garnier wrote:
>> Correctly setup the temporary mapping for hibernation. Previous
>> implementation assumed the address was aligned on the PGD level. With
>> KASLR memory randomization enabled, the address is randomized on the PUD
>> level. This change supports unaligned address up to PMD.
>
> This code is shared with kexec AFAICS, so it likely is better to push it
> through tip rather than through the PM tree.

Only calling path via arch/x86/power/hibernate_64.c have
   kernel_mapping = true;
other two paths: arch/x86/boot/compressed/pagetable.c and
arch/x86/kernel/machine_kexec_64.c
all have kernel_mapping as false.

maybe that path need simplified kernel_physical_mapping_init() instead?

Thanks

Yinghai

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[PATCH v1 0/2] x86/power/64: Make KASLR memory randomization compatible with hibernation Thomas Garnier <thgarnie@google.com> - 2016-08-01 19:10 +0200
  [PATCH v1 1/2] x86/power/64: Support unaligned addresses for temporary mapping Thomas Garnier <thgarnie@google.com> - 2016-08-01 19:10 +0200
    Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for temporary mapping "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-02 02:40 +0200
      Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-02 21:10 +0200
    Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-02 20:00 +0200
      Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for  temporary mapping Thomas Garnier <thgarnie@google.com> - 2016-08-02 20:00 +0200
        Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-02 22:00 +0200
          Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for  temporary mapping Thomas Garnier <thgarnie@google.com> - 2016-08-03 18:40 +0200
          [PATCH v2] x86/power/64: Support unaligned addresses for temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-03 23:00 +0200
            Re: [PATCH v2] x86/power/64: Support unaligned addresses for  temporary mapping "Rafael J. Wysocki" <rafael@kernel.org> - 2016-08-04 00:40 +0200
              Re: [PATCH v2] x86/power/64: Support unaligned addresses for temporary mapping "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-07 03:00 +0200
                Re: [PATCH v2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-07 07:00 +0200
                Re: [PATCH v2] x86/power/64: Support unaligned addresses for temporary mapping "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-08 01:20 +0200
                Re: [PATCH v2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-08 09:10 +0200
                Re: [PATCH v2] x86/power/64: Support unaligned addresses for  temporary mapping Yinghai Lu <yinghai@kernel.org> - 2016-08-08 09:30 +0200
                Re: [PATCH v2] x86/power/64: Support unaligned addresses for temporary mapping "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-08 15:20 +0200
  Re: [PATCH v1 0/2] x86/power/64: Make KASLR memory randomization compatible with hibernation "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-02 01:50 +0200
    Re: [PATCH v1 0/2] x86/power/64: Make KASLR memory randomization compatible with hibernation "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-08-02 02:50 +0200

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