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hw/i386: Add a default_bus_bypass_iommu pc machine option

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Add a default_bus_bypass_iommu pc machine option to enable/disable
bypass_iommu for default root bus. The option is disabled by default
and can be enabled with:
$QEMU -machine q35,default_bus_bypass_iommu=true

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-5-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 12:55:14 +00:00 • committed by Michael S. Tsirkin
parent 6d7a85483a
commit c9e96b04fc
3 changed files with 23 additions and 0 deletions
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1
include/hw/i386/pc.h
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@ -44,6 +44,7 @@ typedef struct PCMachineState {
bool sata_enabled;
bool pit_enabled;
bool hpet_enabled;
bool default_bus_bypass_iommu;
uint64_t max_fw_size;
/* NUMA information: */