DGX Software Stack#

NVIDIA DGX Software Packages#

The following tables list the packages installed as part of the DGX Software Stack, categorized by metapackage names.

nvidia-system-core#

Package Name	Description
cuda-compute-repo	CUDA compute repository configuration files.
dgx-release	Package updates the DGX OS release information.
dgx-repo	DGX repository configuration files.
hpc-sdk-repo	NVIDIA HPC SDK repository configuration files.
msecli	Micron Storage Executive CLI.
nv-common-apis	Install commonly used scripts used by Nvidia systems.
nv-cpu-governor	Set CPU governor to performance.
nv-env-paths	Configure the PATH variable.
nv-grubmenu	Make Grub menu visible.
nv-grubserial	Display GRUB menu over a serial console.
nv-iommu	Enable iommu in passthrough mode; enable intel_iommu on systems with Emerald Rapids CPU.
nv-ipmi-devintf	Load the ipmi_devintf module.
nv-limits	Increase the file limit.
nv-update-disable	Disable OS update prompt.
nvgpu-services-list	List all GPU-related services.
nvidia-acs-disable	Disable the PCIe ACS capability.
nvidia-crashdump	NVIDIA crash dump policy.
nvidia-disable-init-on-alloc	Disable heap memory zeroing on allocation.
nvidia-disable-numa-balancing	Disable automatic page fault NUMA memory balancing.
nvidia-earlycon	Set up the early console with no options.
nvidia-enable-power-meter-cap	Enable power capping functionality in ACPI power meter.
nvidia-esm-hook-epilogue	NVIDIA package to clarify ESM policy.
nvidia-fs-loader	Load the nvidia-fs module.
nvidia-ipmisol	Enable IPMI Serial-over-LAN.
nvidia-kernel-defaults	The sysctl default kernel settings for DGX.
nvidia-mig-manager	NVIDIA MIG Partition Editor and Systemd Service.
nvidia-nvme-options	Automatically enables NVMe Interrupt Coalescing at bootup on all Samsung and Kioxia drives.
nvidia-pci-bridge-power	Set the PCI bridge power control to on.
nvidia-pci-realloc	Force PCI resource reallocation.
nvidia-raid-config	DGX RAID Configuration.
nvidia-redfish-config	Configure Redfish Host Interface.
nvidia-relaxed-ordering-gpu	Configure PCIe Relaxed Ordering.
nvidia-relaxed-ordering-nvme	Configure PCIe Relaxed Ordering.
nvidia-repo-keys	Add keys to apt trusted.gpg database.

nvidia-system-utils#

Package Name	Description
nv-persistence-mode	Enable persistence mode.
nvidia-conf-cachefilesd	Systemd settings for cachefilesd.
nvidia-fs-loader	Load the nvidia-fs module.
nvidia-logrotate	NVIDIA logrotate policy.
nvidia-motd	Custom motd files for NVIDIA platforms.
nvsm	REST API services for DGX System Management.

nvidia-system-mlnx-drivers#

Package Name	Description
doca-ofed	The doca-ofed metapackage.
doca-repo	DOCA repository configuration files.
mlnx-nfsrdma-dkms	DKMS support for NFS RDMA kernel module.
mlnx-nvme-dkms	DKMS support for nvme kernel module.
mlnx-pxe-setup	Provide a script to enable PXE booting using Mellanox cards.
nvidia-ib-umad-loader	Load the ib_umad module.
nvidia-mlnx-config	Configure the MLNX devices.
mlnx-fw-updater	Firmware update binaries and utility

DGX Kernel Parameters, System Configuration Settings, and Runtime Commands#

Kernel Parameters#

Parameter Name	Description	Package	Location
crashkernel	Amount of memory to use for crash dumps.	nvidia-crashdump	/etc/default/grub.d/kdump-tools.cfg
console=ttyS[0-1],11 5200n8	Set the console to serial port 0 or 1, using 115200 baud, no parity, and 8 data bits. For dgx-h100 and dgx-h800: console=ttyS0,115200 n8. Other system types: console=ttyS1,115200 n8.	nvidia-ipmisol	/etc/default/grub.d/ ipmisol.cfg
iommu=pt	Enable pass through mode only and disable DMA translations. This enables optimizations for the CPU inside the DGX A100.	nv-iommu	/etc/default/grub.d/ iommu.cfg
pci=realloc=on	Allow kernel to reallocate PCI resources if allocations done by BIOS are insufficient. This and pcie_ports=native are both required for NVME hot-plug on DGX2.	nv-enable-nvme-hot-plug	/etc/default/grub.d/ enable-nvme-hot-plug.cfg

System Configuration Settings#

Parameter Name	Description	Package	Location
net.ipv4.conf.all.ar p_announce = 2	Always use the best local address for this target.	nvidia-kernel-defaults	/etc/sysctl.d/20-nvidia-defaults.conf
net.ipv4.conf.defaul t.arp_announce = 2	Always use the best local address for this target.	nvidia-kernel-defaults	/etc/sysctl.d/20-nvidia-defaults.conf
net.ipv4.conf.all.ar p_ignore = 1	Only reply to ARP requests on the interface that contains the target IP address.	nvidia-kernel-defaults	/etc/sysctl.d/20-nvidia-defaults.conf
net.ipv4.conf.default.arp_ignore = 1	Only reply to ARP requests on the interface that contains the target IP address.	nvidia-kernel-defaults	/etc/sysctl.d/20-nvidia-defaults.conf
NVreg_EnablePCIERela xedOrderingMode=1	Set a reg-key to enable PCIe relaxed-ordering in the GPUs.	nvidia-relaxed-ordering-gpu	/etc/modprobe.d/ nvidia-relaxed-ordering.conf
kernel.panic_on_unrecovered_nmi = 1	Configure the system to panic on unrecoverable NMI (Non-Maskable Interrupt).	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.unknown_nmi_panic = 1	Configure the system to panic on an unknown NMI.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.hardlockup_panic = 1	Configure the system to panic when a hard lockup is detected.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.panic_on_io_nmi = 1	Configure the system to panic on I/O NMI.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.softlockup_panic = 1	Configure the system to panic when a soft lockup is detected.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.panic_on_oops = 1	Configure the system to panic when an Oops occurs.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.hung_task_panic = 1	Configure the system to panic when a hung task is detected.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.panic_on_rcu_stall = 1	Configure the system to panic when an RCU stall is detected.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf
kernel.panic = 30	Configure the system to reboot after 30 seconds if a panic occurs.	nvidia-crashdump	/etc/sysctl.d/90-dgx-crashdump.conf

Runtime Commands#

Command	Description	Package	Location
setpci -d ::207 68.w=5000:f000	Set MaxReadReq size to 4KB for ConnectX-6 Network (2) Infiniband (07) devices. Only needed for DGX A100/A800	nvidia-mlnx-config	/etc/systemd/system/ nvidia-mlnx-config.service
mlxconfig -y -d <device> set ADVANCED_PCI_SETTINGS=1	Configure Mellanox network device PCI settings. Enables advanced PCI settings. Only needed for DGX A100/A800	nvidia-mlnx-config	/usr/bin/nvidia-mlnx-config.sh
mlxconfig -y -d <device> set MAX_ACC_OUT_READ=44	Configure Mellanox network device PCI settings. Sets maximum accumulated outbound read requests to 44. Only needed for DGX A100/A800	nvidia-mlnx-config	/usr/bin/nvidia-mlnx-config.sh

DGX Platform JSON Configuration#

{
    "dgx_a800":
    {
        "PlatformType": "DGX A800",
        "GrepStr": "^.*920-23687-2535-.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "True",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "False",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "True",
        "IPMIDefaultSerialTTY": "ttyS1",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "",
        "CrashdumpMem": "2048M,high"
    },
    "dgx_a100":
    {
        "PlatformType": "DGX A100",
        "GrepStr": "^.*920-23687-.*\\|^.*675-23287-.*\\|^.*920-23287-.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "True",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "False",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "True",
        "IPMIDefaultSerialTTY": "ttyS1",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgx_h100":
    {
        "PlatformType": "DGX H100",
        "GrepStr": "^.*DGXH100.*\\|^.*DGX H100.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "False",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "True",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "False",
        "IPMIDefaultSerialTTY": "ttyS0",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "off",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgx_h200":
    {
        "PlatformType": "DGX H200",
        "GrepStr": "^.*DGXH200.*\\|^.*DGX H200.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "False",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "True",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "False",
        "IPMIDefaultSerialTTY": "ttyS0",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "off",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgx_h800":
    {
        "PlatformType": "DGX H100",
        "GrepStr": "^.*DGXH800.*\\|^.*DGX H800.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "False",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "True",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "False",
        "IPMIDefaultSerialTTY": "ttyS0",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "off",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgx_b200":
    {
        "PlatformType": "DGX B200",
        "GrepStr": "^.*DGXB200.*\\|^.*DGX B200.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "False",
        "EnablePowerMeterCap": "False",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "True",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "False",
        "IPMIDefaultSerialTTY": "ttyS0",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "True",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "CrashdumpMem": "2048M,high"
    },
    "dgxstation_a100":
    {
        "PlatformType": "DGXSTATION A100",
        "GrepStr": "^.*920-23487-.*\\|^.*675-23487-.*\\|^DGX Station A100",
        "ConfigureDGXA100Raid": "False",
        "ConfigureDGXStationA100Raid": "True",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "True",
        "HasRedfishIntf": "True",
        "UsesNetplan": "False",
        "EnablePowerMeterCap": "False",
        "UsesNetworkManager": "True",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "False",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "True",
        "IPMIDefaultSerialTTY": "ttyS1",
        "NeedsOEMXconfigOverride": "True",
        "NeedsInitialNvidiaXconfig": "True",
        "NeedsAdaptiveNvidiaXconfig": "True",
        "NeedsContainerdOverride": "True",
        "UsesFabricManager": "False",
        "IsDgxServerType": "False",
        "IsDgxDesktopType": "True",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgxstation_a800":
    {
        "PlatformType": "DGXSTATION A800",
        "GrepStr": "^.*920-23487-2535.*\\|^.*675-23487-0200.*",
        "ConfigureDGXA100Raid": "False",
        "ConfigureDGXStationA100Raid": "True",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "True",
        "HasRedfishIntf": "True",
        "UsesNetplan": "False",
        "EnablePowerMeterCap": "False",
        "UsesNetworkManager": "True",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "False",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "True",
        "IPMIDefaultSerialTTY": "ttyS1",
        "NeedsOEMXconfigOverride": "True",
        "NeedsInitialNvidiaXconfig": "True",
        "NeedsAdaptiveNvidiaXconfig": "True",
        "NeedsContainerdOverride": "True",
        "UsesFabricManager": "False",
        "IsDgxServerType": "False",
        "IsDgxDesktopType": "True",
        "NeedsDisableNumaBalance": "False",
        "NeedsIommuPt": "True",
        "NeedsDisableInitOnAlloc": "False",
        "NeedsEarlycon": "False",
        "PciRealloc": "",
        "CrashdumpMem": "1G-:1024M"
    },
    "dgx_gb200":
    {
        "PlatformType": "DGX GB200",
        "GrepStr": "^.*DGXGB200.*\\|^.*DGX GB200.*\\|^ *GB200 NVL.*",
        "ConfigureDGXA100Raid": "True",
        "ConfigureDGXStationA100Raid": "False",
        "NVMERelaxedOrdering": "True",
        "GpuRelaxedOrdering": "False",
        "EnablePowerMeterCap": "True",
        "BMCPasswordMinLength": "13",
        "BMCPasswordMaxLength": "20",
        "BMCPasswordSupportsZerofill": "True",
        "BMCPasswordComplexityReq": "True",
        "NVSMAlertsSupported": "True",
        "NeedsMRRSConfig": "True",
        "NeedsAccBytesTuning": "False",
        "IPMIDefaultSerialTTY": "ttyS0",
        "NeedsOEMXconfigOverride": "False",
        "NeedsInitialNvidiaXconfig": "False",
        "NeedsAdaptiveNvidiaXconfig": "False",
        "NeedsContainerdOverride": "False",
        "NeedsOemConfigPostActNetplanApply": "False",
        "UsesFabricManager": "False",
        "IsDgxServerType": "True",
        "IsDgxDesktopType": "False",
        "NeedsDisableNumaBalance": "True",
        "NeedsIommuPt": "False",
        "NeedsDisableInitOnAlloc": "True",
        "NeedsEarlycon": "True",
        "PciRealloc": "",
        "CrashdumpMem": "2048M,high"
    }
}

DGX Platform JSON Configuration Definitions#

Name	Definition
PlatformType	Printable string representation of the platform type (for example, DGX H100).
GrepStr	Regex matching the product name as reported by `dmidecode`
ConfigureDGXA100Raid	Used by `nvidia-raid-config` calls to create RAID array with a DGX A100-like disk arrangement: RAID 0 spanning all available U.2 drives.
ConfigureDGXStationA100Raid	Used to create RAID array with a DGX Station A100-like disk arrangement: single U.2, no RAID.
NVMERelaxedOrdering	Package installs the `/usr/bin/nvidia-relaxed-ordering-nvme.sh` script. Requires all data disks to be from the same vendor. Currently only supported in Samsung NVMe disks.
GpuRelaxedOrdering	The nvidia-relaxed-ordering-gpus package calls this function to change GPU driver settings based on platform.
EnablePowerMeterCap	The package nvidia-enable-power-meter-cap configures a server to enable power capping in ACPI power meter for Grace based platforms. Setting this to `True` will configure `acpi_power_meter.force_cap_on=y` in the grub boot parameters.
BMCPasswordMinLength	The package nvidia-oem-config-plugins creates EULA, BMC, etc oem-config screens that use this attribute to set BMC password requirements during ISO installation.
BMCPasswordMaxLength	The package nvidia-oem-config-plugins creates EULA, BMC, etc oem-config screens that use this attribute to set BMC password requirements during ISO installation.
BMCPasswordSupportsZerofill	The package nvidia-oem-config-plugins creates EULA, BMC, etc oem-config screens that use this attribute to set BMC password requirements during ISO installation.
BMCPasswordComplexityReq	The package nvidia-oem-config-plugins creates EULA, BMC, etc oem-config screens that use this attribute to set BMC password requirements during ISO installation.
NVSMAlertsSupported	NVSM is only supported on DGX Platforms. If NVSM is installed, `nvidia-motd` will change the motto of the day to show NVSM alerts.
NeedsMRRSConfig	Nvidia-mlnx-config uses this attribute to use mlxconfig and sets various PCI settings. Sets MaxReadReq size to 4KB for all Network (2) Infiniband (07) devices on DGX A100, DGX A800 and DGX2 only.
NeedsAccBytesTuning	Nvidia-mlnx-config uses this attribute to use mlxconfig and sets various PCI settings.
IPMIDefaultSerialTTY	Sets a default IPMI serial console port in grub kernel parameters.
NeedsOEMXconfigOverride	For dgxstation_a100 or dgxstation_a800, nvidia-conf-xconfig create oem-config override service.
NeedsInitialNvidiaXconfig	For dgxstation_a100 or dgxstation_a800, nvidia-conf-xconfig calls nvidia xconfig and creates empty initial configuration.
NeedsAdaptiveNvidiaXconfig	For dgxstation_a100 or dgxstation_a800, nvidia-conf-xconfig calls nvidia xconfig and creates empty initial configuration.
NeedsContainerdOverride	The package nv-docker-gpus checks this for dgxstation_a100 or dgxstation_a800. In these cases, this package limits nvidia docker to use 3D Controller class GPUs.
NeedsOemConfigPostActNetplanApply	Nvidia-oem-config-postact checks for DCS and DCS legacy platforms, this forces a “netplan apply” after OEM ISO installation.
UsesFabricManager	For platforms DGX2 up to DGX B200, package dgx-release-upgrade checks this to install proper nvidia-fabricmanager package for GPU driver.
IsDgxServerType	During a release upgrade, `dgx-release-upgrade` checks this to install packages just for DGX servers.
IsDgxDesktopType	During a release upgrade, `dgx-release-upgrade` checks this to install packages just for DGX Stations (DGX Station A100, etc.)
NeedsDisableNumaBalance	In Grace based platforms, it configures the system to disable automatic page fault NUMA memory balancing.
NeedsIommuPt	Set `iommu=pt` for AMD Rome platforms to enable `iommu` in passthrough mode on DGX AX00, DGX Station AX00, and DGX HX00 platforms.
NeedsDisableInitOnAlloc	Adds the option `init_on_alloc=0` to the kernel boot string. Disabling `init-on-alloc` allows the kernel to allocate a page of memory without initializing it. This improves performance by skipping the initialization of the memory. `init-on-alloc` is currently disabled for all Grace platforms.
NeedsEarlycon	Adds the option `earlycon` to the kernel boot string. This sets up the early console with no options. The early console is determined by the stdout-path property in the device tree’s chosen node.
PciRealloc	Determine whether to set grub to `pci=realloc=on`, `pci=realloc=off`, or not to set `pci=realloc` at all.
CrashdumpMem	The kdump service uses this value to reserve the crash kernel memory for each kernel. The minimum size of the crash kernel can vary depending on the hardware and machine specifications.