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| author | Eric Auger | 2020-07-03 17:59:42 +0200 |
|---|---|---|
| committer | Peter Maydell | 2020-07-03 17:59:42 +0200 |
| commit | 1733eebb9e75b77120b462814f8f9b03ae918a7a (patch) | |
| tree | 50bf38a34874938c8841f9ecdd1b28bb139e21c2 /include/hw/virtio | |
| parent | qdev: Introduce DEFINE_PROP_RESERVED_REGION (diff) | |
| download | qemu-1733eebb9e75b77120b462814f8f9b03ae918a7a.tar.gz qemu-1733eebb9e75b77120b462814f8f9b03ae918a7a.tar.xz qemu-1733eebb9e75b77120b462814f8f9b03ae918a7a.zip | |
virtio-iommu: Implement RESV_MEM probe request
This patch implements the PROBE request. At the moment,
only THE RESV_MEM property is handled. The first goal is
to report iommu wide reserved regions such as the MSI regions
set by the machine code. On x86 this will be the IOAPIC MSI
region, [0xFEE00000 - 0xFEEFFFFF], on ARM this may be the ITS
doorbell.
In the future we may introduce per device reserved regions.
This will be useful when protecting host assigned devices
which may expose their own reserved regions
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200629070404.10969-3-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/hw/virtio')
| -rw-r--r-- | include/hw/virtio/virtio-iommu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-iommu.h b/include/hw/virtio/virtio-iommu.h index e653004d7c..49eb105cd8 100644 --- a/include/hw/virtio/virtio-iommu.h +++ b/include/hw/virtio/virtio-iommu.h @@ -53,6 +53,8 @@ typedef struct VirtIOIOMMU { GHashTable *as_by_busptr; IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX]; PCIBus *primary_bus; + ReservedRegion *reserved_regions; + uint32_t nb_reserved_regions; GTree *domains; QemuMutex mutex; GTree *endpoints; |