Dell PowerEdge T550 Integrated Remote Access Controller 9 Attribute Registry - Page 295

BIOS.ProcSettings.CpuMinSevAsid (Read or Write) Description This field determines the number of Secure Encrypted Virtualization (SEV) ES and non-ES available Address Space IDs. The number specified is the dividing line between ES and non-ES ASIDs. ES Encrypted State - the register save state area is also encrypted along with the entire guest memory area. The maximum number of SEV ASIDs available depends on installed CPU and memory configuration which can either be 15, 253 or 509. The default value is 1 and the value entered by user means the number of non-ES ASIDs starts from the value entered and ends at the maximum number of SEV ASIDs available. A value of 1 means there are only non-ES ASIDs available. Example 1: If the maximum number of ASIDs is 15, the default value 1 means there are 15 SEV non-ES ASIDs and 0 SEV ES ASIDs. Example 2: If the maximum number of ASIDs is 15, the value 4 means there are 12 SEV non-ES ASIDs and 3 SEV ES ASIDs. Example 3: If the maximum number of ASIDs is 509, the value 40 means there are 470 SEV non-ES ASIDs and 39 SEV ES ASIDs. Legal Values None Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.DataReuse (Read or Write) Description When set to Enabled, allows the processor to retain frequently used lines in all levels of cache at the expense of some control signals between the processor and cache. Legal Values ● Disabled ● Enabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.DcuIpPrefetcher (Read or Write) Description Enables or disables Data Cache Unit (DCU) IP Prefetcher. This setting can affect performance, depending on the application running on the server. Recommended for High Performance Computing applications. Not on Value systems. Legal Values ● Enabled ● Disabled Default Value Not Applicable Write Privilege Server Control License Required iDRAC Express or iDRAC Enterprise Dependency Not applicable BIOS.ProcSettings.DcuStreamerPrefetcher (Read or Write) Description Enables or disables Data Cache Unit (DCU) Streamer Prefetcher. This setting can affect performance, depending on the application running on the server. Recommended for High Performance Computing applications. BIOS Attributes 295