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x86, io_apic: Introduce x86_io_apic_ops.print_entries for debugging

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This call-back is used to dump IO-APIC entries for debugging
purposes into the kernel log. VT-d needs a special routine
for this and will overwrite the default.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Joerg Roedel
2012-09-26 12:44:36 +02:00
parent 1c4248ca4e
commit afcc8a40a0
5 changed files with 69 additions and 53 deletions
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arch/x86/include/asm/x86_init.h
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@@ -195,6 +195,7 @@ struct x86_io_apic_ops {
void (*write) (unsigned int apic, unsigned int reg, unsigned int value);
void (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
void (*disable)(void);
void (*print_entries)(unsigned int apic, unsigned int nr_entries);
};
extern struct x86_init_ops x86_init;