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763f7eaf60
commit 613e396bc0 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
19 lines
426 B
C
19 lines
426 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_ESPFIX_H
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#define _ASM_X86_ESPFIX_H
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#ifdef CONFIG_X86_ESPFIX64
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#include <asm/percpu.h>
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DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
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DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
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extern void init_espfix_bsp(void);
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extern void init_espfix_ap(int cpu);
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#else
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static inline void init_espfix_ap(int cpu) { }
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#endif
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#endif /* _ASM_X86_ESPFIX_H */
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