x86/entry: Convert Divide Error to IDTENTRY

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Convert #DE to IDTENTRY:
  - Implement the C entry point with DEFINE_IDTENTRY
  - Emit the ASM stub with DECLARE_IDTENTRY
  - Remove the ASM idtentry in 64bit
  - Remove the open coded ASM entry code in 32bit
  - Fixup the XEN/PV code

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/20200505134904.663914713@linutronix.de

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This commit is contained in:

Thomas Gleixner 2020-02-25 23:16:14 +01:00

parent 218e31b6e7

commit 9d06c4027f

8 changed files with 26 additions and 15 deletions

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7

arch/x86/entry/entry_32.S

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1

arch/x86/entry/entry_64.S

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12

arch/x86/include/asm/idtentry.h

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3

arch/x86/include/asm/traps.h

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arch/x86/kernel/idt.c

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7

arch/x86/kernel/traps.c

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7

arch/x86/xen/enlighten_pv.c

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2

arch/x86/xen/xen-asm_64.S

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