Figure 3-9
Intel(R) TV for Directed I/O (TV-d) screen
----End
3.1.2 Modifying the GRUB Configuration File
Depending on the Linux distributions, the system Grand Unified Boot Loader (GRUB)
configuration file may be
grub.conf
or
grub.cfg
.
This section describes how to configure the
iommu
and
intel_iommu
parameters in the SR-
IOV pass-through mode.
l
To enable SR-IOV in the kernel, add
intel_iommu=on
to the GRUB file.
l
To avoid memory mapping and performance problems on the host, add
iommu=pt
to the
GRUB file when SR-IOV is enabled.
Procedure
This section uses RHEL 7.4 as an example to describe how to modify the system GRUB
configuration file.
Step 1
Run the following command to check whether SR-IOV is enabled:
l
If yes, no further action is required.
l
Step 2
In the system, run the
find
command to search for the GRUB file.
Huawei IN200 NIC
User Guide
3 Configuring SR-IOV
Issue 06 (2019-07-27)
Copyright © Huawei Technologies Co., Ltd.
36