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authorThomas Gleixner <tglx@linutronix.de>2017-12-17 12:56:29 +0300
committerIngo Molnar <mingo@kernel.org>2017-12-22 22:13:05 +0300
commit613e396bc0d4c7604fba23256644e78454c68cf6 (patch)
tree8ffcc7982ba17085864a3e87525e2090255e00bc /arch/x86/include/asm
parent92a0f81d89571e3e8759366e050ee05cc545ef99 (diff)
downloadlinux-613e396bc0d4c7604fba23256644e78454c68cf6.tar.xz
init: Invoke init_espfix_bsp() from mm_init()
init_espfix_bsp() needs to be invoked before the page table isolation initialization. Move it into mm_init() which is the place where pti_init() will be added. While at it get rid of the #ifdeffery and provide proper stub functions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/espfix.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/include/asm/espfix.h b/arch/x86/include/asm/espfix.h
index 0211029076ea..6777480d8a42 100644
--- a/arch/x86/include/asm/espfix.h
+++ b/arch/x86/include/asm/espfix.h
@@ -2,7 +2,7 @@
#ifndef _ASM_X86_ESPFIX_H
#define _ASM_X86_ESPFIX_H
-#ifdef CONFIG_X86_64
+#ifdef CONFIG_X86_ESPFIX64
#include <asm/percpu.h>
@@ -11,7 +11,8 @@ DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
extern void init_espfix_bsp(void);
extern void init_espfix_ap(int cpu);
-
-#endif /* CONFIG_X86_64 */
+#else
+static inline void init_espfix_ap(int cpu) { }
+#endif
#endif /* _ASM_X86_ESPFIX_H */