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Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup

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On Mon, Aug 31, 2015 at 11:05:33AM -0500, Stuart Hayes wrote:
> Increase the range of chunk sizes tried in mtrr_cleanup() so it is able
> to map large memory configs into MTRRs.
> 
> Currently, mtrr_cleanup() will fail with large memory configurations,
> because it limits chunk_size to 2GB, which means that each MTRR can only
> cover 2GB of memory.  With a memory size of, say, 256GB, and ten variable
> MTRRs (such as some recent Intel CPUs have), it is not possible to set up
> the MTRRs to cover all of memory.

Linux drivers no longer use MTRR so why is the cleanup needed, ie, what would
happen if the cleanup is just skipped in your case ?

  Luis
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Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Stuart Hayes <stuart.w.hayes@gmail.com> - 2015-08-31 18:10 +0200
  Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-03 04:50 +0200
    Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Prarit Bhargava <prarit@redhat.com> - 2015-09-03 14:20 +0200
      Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-03 20:00 +0200
        Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Prarit Bhargava <prarit@redhat.com> - 2015-09-03 20:20 +0200
          Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-03 20:50 +0200
            Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-03 21:30 +0200
              Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-03 22:00 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-03 23:40 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-04 00:10 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-04 00:30 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-04 00:50 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-04 01:30 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-04 02:00 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-04 03:00 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-09-04 03:50 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup Toshi Kani <toshi.kani@hpe.com> - 2015-09-04 17:00 +0200
                Re: Fwd: [PATCH] x86: Use larger chunks in mtrr_cleanup "Jan Beulich" <JBeulich@suse.com> - 2015-09-04 09:00 +0200

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