Re: [PATCH v3 3/10] x86/asm: Fix pud/pmd interfaces to handle large PAT bit

From: Thomas Gleixner
Date: Tue Aug 25 2015 - 04:17:18 EST

On Wed, 5 Aug 2015, Toshi Kani wrote:

> The PAT bit gets relocated to bit 12 when PUD and PMD mappings are
> used. This bit 12, however, is not covered by PTE_FLAGS_MASK, which
> is corrently used for masking pfn and flags for all cases.
> Fix pud/pmd interfaces to handle pfn and flags properly by using
> P?D_PAGE_MASK when PUD/PMD mappings are used, i.e. PSE bit is set.

Can you please split that into a patch introducing and describing the
new mask helper functions and a second one making use of it?


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