x86: Store a per-cpu shadow copy of CR4

[cascardo/linux.git] / arch / x86 / realmode / init.c

diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index bad628a..0b7a63d 100644 (file)
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -81,7 +81,7 @@ void __init setup_real_mode(void)
 
        trampoline_header->start = (u64) secondary_startup_64;
        trampoline_cr4_features = &trampoline_header->cr4;
-       *trampoline_cr4_features = read_cr4();
+       *trampoline_cr4_features = __read_cr4();
 
        trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
        trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;