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intel_iommu: Implement [set|unset]_iommu_device() callbacks

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Implement [set|unset]_iommu_device() callbacks in Intel vIOMMU.
In set call, we take a reference of HostIOMMUDevice and store it
in hash table indexed by PCI BDF.

Note this BDF index is device's real BDF not the aliased one which
is different from the index of VTDAddressSpace. There can be multiple
assigned devices under same virtual iommu group and share same
VTDAddressSpace, but each has its own HostIOMMUDevice.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Yi Liu 2024-06-05 16:30:42 +08:00 • committed by Cédric Le Goater
parent d5fd978d91
commit a20910ca3e
2 changed files with 83 additions and 0 deletions
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2
include/hw/i386/intel_iommu.h
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@ -292,6 +292,8 @@ struct IntelIOMMUState {
/* list of registered notifiers */
QLIST_HEAD(, VTDAddressSpace) vtd_as_with_notifiers;
GHashTable *vtd_host_iommu_dev; /* HostIOMMUDevice */
/* interrupt remapping */
bool intr_enabled; /* Whether guest enabled IR */
dma_addr_t intr_root; /* Interrupt remapping table pointer */