diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2016-07-14 13:56:28 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-07-21 20:43:49 +0300 |
| commit | 28589311b326398e88bf6804db8575a6da426b39 (patch) | |
| tree | c5940952719e6e99ef531ce6c723fa2e3beba8bd /include/hw | |
| parent | e3d9c92507df61608896a579b5b0d7c218d5353e (diff) | |
intel_iommu: Add support for Extended Interrupt Mode
As neither QEMU nor KVM support more than 255 CPUs so far, this is
simple: we only need to switch the destination ID translation in
vtd_remap_irq_get if EIME is set.
Once CFI support is there, it will have to take EIM into account as
well. So far, nothing to do for this.
This patch allows to use x2APIC in split irqchip mode of KVM.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
[use le32_to_cpu() to retrieve dest_id]
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>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/i386/intel_iommu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index e048ced5d5..745b4e7687 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -271,6 +271,7 @@ struct IntelIOMMUState { bool intr_enabled; /* Whether guest enabled IR */ dma_addr_t intr_root; /* Interrupt remapping table pointer */ uint32_t intr_size; /* Number of IR table entries */ + bool intr_eime; /* Extended interrupt mode enabled */ }; /* Find the VTD Address space associated with the given bus pointer, |