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x86: fix z_x86_page_tables_get() for 64-bit

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Needs a different assembly instruction.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
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Andrew Boie 2019-11-05 13:27:40 -08:00 • committed by Andrew Boie
commit 65e17a923f
1 changed files with 4 additions and 0 deletions
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4
include/arch/x86/mmustructs.h
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@ -352,7 +352,11 @@ static inline struct x86_page_tables *z_x86_page_tables_get(void)
{ {
struct x86_page_tables *ret; struct x86_page_tables *ret;
#ifdef CONFIG_X86_64
__asm__ volatile("movq %%cr3, %0\n\t" : "=r" (ret));
#else
__asm__ volatile("movl %%cr3, %0\n\t" : "=r" (ret)); __asm__ volatile("movl %%cr3, %0\n\t" : "=r" (ret));
#endif
return ret; return ret;
} }