Messages in this thread | | | Date | Tue, 24 Mar 2015 15:43:24 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH v4 0/7] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping |
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On Tue, 24 Mar 2015 16:08:34 -0600 Toshi Kani <toshi.kani@hp.com> wrote:
> This patchset enhances MTRR checks for the kernel huge I/O mapping, > which was enabled by the patchset below: > https://lkml.org/lkml/2015/3/3/589 > > The following functional changes are made in patch 7/7. > - Allow pud_set_huge() and pmd_set_huge() to create a huge page > mapping to a range covered by a single MTRR entry of any memory > type. > - Log a pr_warn() message when a specified PMD map range spans more > than a single MTRR entry. Drivers should make a mapping request > aligned to a single MTRR entry when the range is covered by MTRRs. >
OK, I grabbed these after barely looking at them, to get them a bit of runtime testing.
I'll await guidance from the x86 maintainers regarding next steps?
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