x86: Use __pa_symbol instead of __pa on C visible symbols

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When I made an attempt at separating __pa_symbol and __pa I found that there
were a number of cases where __pa was used on an obvious symbol.

I also caught one non-obvious case as _brk_start and _brk_end are based on the
address of __brk_base which is a C visible symbol.

In mark_rodata_ro I was able to reduce the overhead of kernel symbol to
virtual memory translation by using a combination of __va(__pa_symbol())
instead of page_address(virt_to_page()).

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Link: http://lkml.kernel.org/r/20121116215640.8521.80483.stgit@ahduyck-cp1.jf.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Alexander Duyck 2012-11-16 13:57:13 -08:00 • committed by H. Peter Anvin

parent 05a476b6e3

commit fc8d782677

6 changed files with 27 additions and 29 deletions

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arch/x86/kernel/cpu/intel.c

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arch/x86/kernel/setup.c

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arch/x86/mm/init_64.c

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arch/x86/mm/pageattr.c

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arch/x86/platform/efi/efi.c

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arch/x86/realmode/init.c

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