From: David Vrabel Date: Wed, 8 Jan 2014 14:01:01 +0000 (+0000) Subject: x86/xen: do not use _PAGE_IOMAP PTE flag for I/O mappings X-Git-Tag: fixes-against-v3.18-rc2~118^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f2f88224517cdaad68b772b2a2095b87dc72886;p=pandora-kernel.git x86/xen: do not use _PAGE_IOMAP PTE flag for I/O mappings Since mfn_to_pfn() returns the correct PFN for identity mappings (as used for MMIO regions), the use of _PAGE_IOMAP is not required in pte_mfn_to_pfn(). Do not set the _PAGE_IOMAP flag in pte_pfn_to_mfn() and do not use it in pte_mfn_to_pfn(). This will allow _PAGE_IOMAP to be removed, making it available for future use. Signed-off-by: David Vrabel Reviewed-by: Konrad Rzeszutek Wilk --- Reading git-diff-tree failed