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hw/arm/virt: Add default_bus_bypass_iommu machine option

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Add a default_bus_bypass_iommu machine option to enable/disable
bypass_iommu for default root bus. The option is disabled by
default and can be enabled with:
$QEMU -machine virt,iommu=smmuv3,default_bus_bypass_iommu=true

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-4-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xingang Wang
2021-07-08 12:55:13 +00:00
committed by Michael S. Tsirkin
parent 91528f40ba
commit 6d7a85483a
2 changed files with 27 additions and 0 deletions
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1
include/hw/arm/virt.h
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@ -147,6 +147,7 @@ struct VirtMachineState {
OnOffAuto acpi;
VirtGICType gic_version;
VirtIOMMUType iommu;
bool default_bus_bypass_iommu;
VirtMSIControllerType msi_controller;
uint16_t virtio_iommu_bdf;
struct arm_boot_info bootinfo;