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x86/entry: Convert General protection exception to IDTENTRY

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Convert #GP to IDTENTRY_ERRORCODE:
  - 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
  - Remove the old prototypes
  - Remove the RCU warning as the new entry macro ensures correctness

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/20200505134905.637269946@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-02-25 23:16:25 +01:00
parent fd9689bf91
commit be4c11afbb
8 changed files with 9 additions and 20 deletions
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2
arch/x86/xen/enlighten_pv.c
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@@ -630,7 +630,7 @@ static struct trap_array_entry trap_array[] = {
TRAP_ENTRY(exc_invalid_tss, false ),
TRAP_ENTRY(exc_segment_not_present, false ),
TRAP_ENTRY(exc_stack_segment, false ),
{ general_protection, xen_general_protection, false },
TRAP_ENTRY(exc_general_protection, false ),
{ spurious_interrupt_bug, xen_spurious_interrupt_bug, false },
{ coprocessor_error, xen_coprocessor_error, false },
{ alignment_check, xen_alignment_check, false },