Bios Io Menu Io Virtualization Options - Oracle X7-8 Service Manual

BIOS IO Menu Selections
Setup Options
Maximum Payload
Maximum Read Request
PCIe Hot-Plug Support

BIOS IO Menu IO Virtualization Options

The following table describes the BIOS IO Menu IO virtualization options.
Setup Options
VT-d
ACS
SR-IOV Support
328 Oracle Server X7-8 Service Manual • April 2018
Options
Auto/128 Bytes/256 Bytes/512
Bytes/1024 Bytes/2048
Bytes/4096 Bytes
Auto/128 Bytes/256 Bytes/512
Bytes/1024 Bytes/2048
Bytes/4096 Bytes
Disabled/Enabled
Options
Disabled/Enabled
Disabled/Enabled
Disabled/Enabled
Defaults
Auto
Auto
Enabled
Defaults
Enabled
Disabled
Enabled
Description
is available only if the system
supports 64-bit decoding.
Set the Maximum Payload of the
PCI Express device or allow the
System BIOS to select the value.
Set the Maximum Read Request
of the PCI Express device or
allow the System BIOS to select
the value.
If enabled, allows the OS to
support PCIe Hot-Plug. If
disabled, it does not allow the
OS to support PCIe Hot-Plug.
Description
Enable or disable Intel
Virtualization Technology for
directed I/O (VT-d) by reporting
the I/O device assignment to
VMM through DMA remapping
reporting (DMAR) Advance
Configuration Power Interface
(ACPI) tables.
If disabled, programs ACS
only to Chipset PCIe Root Port
Bridges. If enabled, programs
ACS to all PCIe Root Port
Bridges.
Single Root I/O Virtualization
(SR-IOV) is used to configure
devices into multiple virtual
devices that can be used on
virtual OS installations. If
supported by the hardware
and set to enabled, all devices
within the system that are SR-
IOV capable are configured
to support SR-IOV and I/O
resources are allocated to the
device as normal. If set to
disabled, I/O resources are not
allocated to the device.