linux/arch
David Vrabel 7f2f882245 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 <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-09-23 13:36:20 +00:00
..
alpha alpha: io: implement relaxed accessor macros for writes 2014-08-29 11:18:45 -07:00
arc ARC: [mm] Fix compilation breakage 2014-09-03 10:08:50 -07:00
arm Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-09-21 12:11:52 -07:00
arm64 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-09-19 09:07:47 -07:00
avr32
blackfin
c6x
cris
frv
hexagon flush_icache_range: export symbol to fix build errors 2014-08-29 16:28:17 -07:00
ia64 PCI updates for v3.17: 2014-09-19 10:50:30 -07:00
m32r
m68k m68k: Wire up memfd_create 2014-09-01 10:28:00 +02:00
metag
microblaze microblaze: Fix number of syscalls 2014-09-09 13:14:47 +02:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-09-19 09:06:39 -07:00
mn10300
openrisc
parisc parisc: Implement new LWS CAS supporting 64 bit operations. 2014-09-13 22:40:48 +02:00
powerpc powerpc: Wire up sys_seccomp(), sys_getrandom() and sys_memfd_create() 2014-09-09 19:02:47 +10:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-09-08 08:27:00 -07:00
score
sh sh: get_user_pages_fast() must flush cache 2014-09-10 15:42:12 -07:00
sparc
tile flush_icache_range: export symbol to fix build errors 2014-08-29 16:28:17 -07:00
um
unicore32 unicore32: Fix build error 2014-08-31 17:08:12 -07:00
x86 x86/xen: do not use _PAGE_IOMAP PTE flag for I/O mappings 2014-09-23 13:36:20 +00:00
xtensa Xtensa improvements for 3.17: 2014-08-31 17:08:42 -07:00
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