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Oracle® Exadata Database Server X8-8 Service Manual

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Updated: June 2020
 
 

BIOS IO Menu Selections

This section includes a screen of the BIOS IO Menu. The options that are available from the IO Menu are described in the sections that follow.

image:This figure shows the BIOS IO Menu image.

The following sections describe the BIOS IO Menu options.

BIOS IO Menu PCI Subsystem Settings Options

The following table describes the BIOS IO Menu PCI subsystem settings options.

Setup Options
Options
Defaults
Description
PCI 64 Bit Resources Allocation
Disabled/Enabled
Enabled
Enable or disable 64-bit capable devices to be decoded in above 4G address space. This setting is available only if the system supports 64-bit decoding.
Maximum Payload
Auto/128 Bytes/256 Bytes/512 Bytes/1024 Bytes/2048 Bytes/4096 Bytes
Auto
Set the Maximum Payload of the PCI Express device or allow the System BIOS to select the value.
Maximum Read Request
Auto/128 Bytes/256 Bytes/512 Bytes/1024 Bytes/2048 Bytes/4096 Bytes
Auto
Set the Maximum Read Request of the PCI Express device or allow the System BIOS to select the value.
PCIe Hot-Plug Support
Disabled/Enabled
Enabled
If enabled, allows the OS to support PCIe Hot-Plug. If disabled, it does not allow the OS to support PCIe Hot-Plug.

BIOS IO Menu IO Virtualization Options

The following table describes the BIOS IO Menu IO virtualization options.

Setup Options
Options
Defaults
Description
VT-d
Disabled/Enabled
Enabled
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.
ACS
Disabled/Enabled
Disabled
If disabled, programs ACS only to Chipset PCIe Root Port Bridges. If enabled, programs ACS to all PCIe Root Port Bridges.
SR-IOV Support
Disabled/Enabled
Enabled
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.
ARI
Disabled/Enabled
Enabled
If Alternate Routing ID (ARI) is supported by the hardware and set to enabled, devices are permitted to locate virtual functions (VFs) in function numbers 8 to 255 of the captured bus number, instead of normal function numbers 0 to 7.

BIOS IO Menu IOAT Configuration Options

The following table describes the BIOS IO Menu IOAT configuration options.

Setup Options
Options
Defaults
Description
Intel IOAT
Disabled/Enabled
Enabled
Enable or disable Intel IOAT.
DCA Support
Disabled/Enabled
Enabled
Enable or disable direct cache access (DCA) support.

BIOS IO Menu Internal Devices Options

The following table describes the BIOS IO Menu internal devices options.

Setup Options
Options
Defaults
Description
NET 0
Displays and provides options to change the internal device settings.
PCI-E UEFI Driver Enable
Disabled/Enabled
Enabled
Enable or disable PCI-E UEFI Driver. If set to enabled, UEFI Driver for the card executes as normal. If set to disabled, UEFI Driver for the card is not copied into memory and the execution of the UEFI Driver is inhibited.
NET 1 through NET 7
Same description as NET 0
PCI-E HBA Settings
Displays and provides options to change PCIe HBA settings.
PCI-E HBA Settings (SideB)
Displays and provides options to change PCIe HBA settings.

BIOS IO Menu Add-in Cards Options

The following table describes the BIOS IO Menu add-in cards options.

Setup Options
Options
Defaults
Description
Slot 1
Displays and provides options to change the settings of the devices in PCIe HBA slots.
IO Enable
Disabled/Enabled
Enabled
IO Enable
PCI-E UEFI Driver Enable
Disabled/Enabled
Enabled
Enable or disable PCI-E UEFI Driver. If set to enabled, UEFI Driver for the card executes as normal. If set to disabled, UEFI Driver for the card is not copied into memory and the execution of the UEFI Driver is inhibited.
Hot Plug Capable
Disabled/Enabled
Enabled
Specifies if the link is Hot-Plug capable.
PCIE SLOT DDIO
Disabled/Enabled
Enabled
Enable or disable DDIO Use_Allocating_Flow_WR for this slot.
Slot 2 through Slot 16
Same description as Slot 1.

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