x86, io_apic: Introduce x86_io_apic_ops.disable()

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This function pointer is used to call a system-specific
function for disabling the IO-APIC. Currently this is used
for IRQ remapping which has its own disable routine.

Also introduce the necessary infrastructure in the interrupt
remapping code to overwrite this and other function pointers
as necessary by interrupt remapping.

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>

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This commit is contained in:

Joerg Roedel 2012-09-26 12:44:35 +02:00

parent 336224ba5e

commit 1c4248ca4e

5 changed files with 61 additions and 31 deletions

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2

arch/x86/include/asm/io_apic.h

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9

arch/x86/include/asm/x86_init.h

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43

arch/x86/kernel/apic/io_apic.c

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9

arch/x86/kernel/x86_init.c

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31

drivers/iommu/irq_remapping.c

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