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vmm: Add iommu=on|off option for --device

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Having the virtual IOMMU created with --iommu is one thing, but we also
need a way to decide if a VFIO device should be attached to the virtual
IOMMU or not. That's why we introduce an extra option "iommu" with the
value "on" or "off". By default, the device is not attached, which means
"iommu=off".

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2019-10-07 09:03:58 -07:00
committed by Samuel Ortiz
parent 3bb51d4d5e
commit 5fc3f37c9b
5 changed files with 32 additions and 4 deletions
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test_data/cloud-init/clear/openstack/latest/user_data
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@@ -51,4 +51,4 @@ write_files:
bash -c "echo 0000:00:06.0 > /sys/bus/pci/devices/0000\:00\:06.0/driver/unbind"
bash -c "echo 1af4 1041 > /sys/bus/pci/drivers/vfio-pci/new_id"
/mnt/cloud-hypervisor --kernel /mnt/vmlinux --cmdline "console=hvc0 reboot=k panic=1 nomodules i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd root=/dev/vda2 VFIOTAG" --disk path=/mnt/clear-cloudguest.img path=/mnt/cloudinit.img --cpus 1 --memory size=512M --rng --device /sys/bus/pci/devices/0000:00:06.0/
/mnt/cloud-hypervisor --kernel /mnt/vmlinux --cmdline "console=hvc0 reboot=k panic=1 nomodules i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd root=/dev/vda2 VFIOTAG" --disk path=/mnt/clear-cloudguest.img path=/mnt/cloudinit.img --cpus 1 --memory size=512M --rng --device path=/sys/bus/pci/devices/0000:00:06.0/