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x86/lguest: Use __pa_symbol instead of __pa on C visible symbols 

The function lguest_write_cr3 is using __pa to convert swapper_pg_dir and
initial_page_table from virtual addresses to physical.  The correct function
to use for these values is __pa_symbol since they are C visible symbols.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Link: http://lkml.kernel.org/r/20121116215748.8521.83556.stgit@ahduyck-cp1.jf.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Alexander Duyck 2012-11-16 13:58:12 -08:00 committed by H. Peter Anvin
parent afd51a0e32
commit 6a3956bd24
1 changed files with 2 additions and 1 deletions
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3
arch/x86/lguest/boot.c
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@ -552,7 +552,8 @@ static void lguest_write_cr3(unsigned long cr3)
current_cr3 = cr3;
/* These two page tables are simple, linear, and used during boot */
if (cr3 != __pa(swapper_pg_dir) && cr3 != __pa(initial_page_table))
if (cr3 != __pa_symbol(swapper_pg_dir) &&
cr3 != __pa_symbol(initial_page_table))
cr3_changed = true;
}