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x86-iommu: introduce "intremap" property

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Adding one property for intel-iommu devices to specify whether we should
support interrupt remapping. By default, IR is disabled. To enable it,
we should use (take Intel IOMMU as example):

  -device intel_iommu,intremap=on

This property can be shared by Intel and future AMD IOMMUs.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Peter Xu 2016-07-14 13:56:13 +08:00 • committed by Michael S. Tsirkin
parent 1cf5fd573f
commit 1121e0afdc
2 changed files with 24 additions and 0 deletions
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1
include/hw/i386/x86-iommu.h
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@ -43,6 +43,7 @@ struct X86IOMMUClass {
struct X86IOMMUState {
SysBusDevice busdev;
bool intr_supported; /* Whether vIOMMU supports IR */
};
/**