diff options
| author | Eric Auger <eric.auger@redhat.com> | 2024-03-07 14:43:08 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-12 17:59:03 -0400 |
| commit | 9b588be373ad01e7ce09e25f69f66b811af0b799 (patch) | |
| tree | fdb68f1aad0c409817b50464dab1ef967a7dc984 /hw/core | |
| parent | 01e7e4921ccebb81cebc69eb648040a57be4f5ff (diff) | |
hw/i386/q35: Set virtio-iommu aw-bits default value to 39
Currently the default input range can extend to 64 bits. On x86,
when the virtio-iommu protects vfio devices, the physical iommu
may support only 39 bits. Let's set the default to 39, as done
for the intel-iommu.
We use hw_compat_8_2 to handle the compatibility for machines
before 9.0 which used to have a virtio-iommu default input range
of 64 bits.
Of course if aw-bits is set from the command line, the default
is overriden.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20240307134445.92296-8-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/machine.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c index 6bd09d4592..4b89172d1c 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -35,6 +35,7 @@ GlobalProperty hw_compat_8_2[] = { { TYPE_VIRTIO_IOMMU_PCI, "granule", "4k" }, + { TYPE_VIRTIO_IOMMU_PCI, "aw-bits", "64" }, }; const size_t hw_compat_8_2_len = G_N_ELEMENTS(hw_compat_8_2); |