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x86/entry: Convert Machine Check to IDTENTRY_IST

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Convert #MC to IDTENTRY_MCE:
  - Implement the C entry points with DEFINE_IDTENTRY_MCE
  - Emit the ASM stub with DECLARE_IDTENTRY_MCE
  - Remove the ASM idtentry in 64bit
  - Remove the open coded ASM entry code in 32bit
  - Fixup the XEN/PV code
  - Remove the old prototypes
  - Remove the error code from *machine_check_vector() as
    it is always 0 and not used by any of the functions
    it can point to. Fixup all the functions as well.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200505135314.334980426@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-02-25 23:33:23 +01:00
parent 94a46d316f
commit 8cd501c1fa
15 changed files with 33 additions and 43 deletions
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2
arch/x86/include/asm/mce.h
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@@ -238,7 +238,7 @@ extern void mce_disable_bank(int bank);
/*
* Exception handler
*/
void do_machine_check(struct pt_regs *, long);
void do_machine_check(struct pt_regs *pt_regs);
/*
* Threshold handler