Dell E45S003 Довідковий посібник - Сторінка 7
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Table 5. Processor Settings details
Option
Logical Processor
Virtualization Technology
IOMMU Support
Kernel DMA Protection
L1 Stream HW Prefetcher
L2 Stream HW Prefetcher
L1 Stride Prefetcher
L1 Region Prefetcher
L2 Up Down Prefetcher
MADT Core Enumeration
NUMA Nodes Per Socket
L3 cache as NUMA Domain
Secure Memory Encryption (SME)
Minimum SEV non-ES ASID
Description
Each processor core supports up to two logical processors.
If this option is set to Enabled, the BIOS displays all the
logical processors. If this option is set to Disabled, the BIOS
displays only one logical processor per core. This option is set
to Enabled by default.
Enables or disables the virtualization technology for the
processor. This option is set to Enabled by default.
Enable or Disable IOMMU support. It is required to create
IVRS ACPI table. This option is set to Enabled by default.
When this option is set to Enabled, using IOMMU, BIOS,
and the Operating System will enable direct memory access
protection for DMA capable peripheral devices. Enable
IOMMU Support to use this option. When this option is set
to Enabled, using Virtualization Technology, BIOS, and the
Operating System will enable direct memory access protection
for DMA capable peripheral devices. Enable Virtualization
Technology to use this option. This option is set to Disabled
by default.
Enables or disables the L1 stream hardware prefetcher. This
option is set to Enabled by default.
Enables or disables the L2 stream hardware prefetcher. This
option is set to Enabled by default.
Enables or disables the L1 stride prefetcher. This option is set
to Enabled by default, as it optimizes overall workload.
NOTE:
This option is only available for 3rd Generation
AMD EPYC processors.
Enables or disables the L1 region prefetcher. This option is set
to Enabled by default, as it optimizes overall workload.
NOTE:
This option is only available for 3rd Generation
AMD EPYC processors.
Enables or disables the L2 up down prefetcher. This option is
set to Enabled by default, as it optimizes overall workload.
NOTE:
This option is only available for 3rd Generation
AMD EPYC processors.
Specifies the MADT Core Enumeration. This option is set to
Linear by default.
Specifies the number of NUMA nodes per socket. This option
is set to 1 by default.
Enables or disables the CCX as NUMA Domain. This option is
set to Disabled by default.
Enables or disables the AMD secure encryption features such
as SME and Secure Encrypted Virtualization (SEV). It also
determines if other secure encryption features such as TSME
and SEV-SNP can be enabled. This option is set to Disabled
by default.
NOTE:
This option is only available for 3rd Generation
AMD EPYC processors.
Determines the number of Secure Encrypted Virtualization ES
and non-ES available Address Space IDs. This option is set to
1 by default.
Pre-operating system management applications
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