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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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3
src/runtime/virtcontainers/pkg/annotations/annotations.go
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@@ -148,6 +148,9 @@ const (
// HugePages is a sandbox annotation to specify if the memory should be pre-allocated from huge pages
HugePages = kataAnnotHypervisorPrefix + "enable_hugepages"
// Iommu is a sandbox annotation to specify if the VM should have a vIOMMU device
IOMMU = kataAnnotHypervisorPrefix + "enable_iommu"
// FileBackedMemRootDir is a sandbox annotation to soecify file based memory backend root directory
FileBackedMemRootDir = kataAnnotHypervisorPrefix + "file_mem_backend"