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qemu: enable iommu on q35

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Add a configuration option and a Pod Annotation

If activated:
- Add kernel parameters to load iommu
- Add irqchip=split in the kvm options
- Add a vIOMMU to the VM

Fixes #2694
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
This commit is contained in:
Adrian Moreno
2020-03-12 13:00:29 +01:00
committed by Fabiano Fidêncio
parent 7faaa06a52
commit b97287090b
11 changed files with 66 additions and 2 deletions
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6
src/runtime/cli/config/configuration-fc.toml.in
View File

@@ -129,6 +129,12 @@ block_device_driver = "@DEFBLOCKSTORAGEDRIVER_FC@"
# result in memory pre allocation
#enable_hugepages = true
# Enable vIOMMU, default false
# Enabling this will result in the VM having a vIOMMU device
# This will also add the following options to the kernel's
# command line: intel_iommu=on,iommu=pt
#enable_iommu = true
# Enable swap of vm memory. Default false.
# The behaviour is undefined if mem_prealloc is also set to true
#enable_swap = true

6
src/runtime/cli/config/configuration-qemu-virtiofs.toml.in
View File

@@ -183,6 +183,12 @@ enable_vhost_user_store = @DEFENABLEVHOSTUSERSTORE@
# simulated block device nodes for vhost-user devices to live.
vhost_user_store_path = "@DEFVHOSTUSERSTOREPATH@"
# Enable vIOMMU, default false
# Enabling this will result in the VM having a vIOMMU device
# This will also add the following options to the kernel's
# command line: intel_iommu=on,iommu=pt
#enable_iommu = true
# Enable file based guest memory support. The default is an empty string which
# will disable this feature. In the case of virtio-fs, this is enabled
# automatically and '/dev/shm' is used as the backing folder.

6
src/runtime/cli/config/configuration-qemu.toml.in
View File

@@ -190,6 +190,12 @@ enable_vhost_user_store = @DEFENABLEVHOSTUSERSTORE@
# simulated block device nodes for vhost-user devices to live.
vhost_user_store_path = "@DEFVHOSTUSERSTOREPATH@"
# Enable vIOMMU, default false
# Enabling this will result in the VM having a vIOMMU device
# This will also add the following options to the kernel's
# command line: intel_iommu=on,iommu=pt
#enable_iommu = true
# Enable file based guest memory support. The default is an empty string which
# will disable this feature. In the case of virtio-fs, this is enabled
# automatically and '/dev/shm' is used as the backing folder.