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- CPU_modes abstract "CPU modes (also called processor modes, CPU states, CPU privilege levels and other names) are operating modes for the central processing unit of some computer architectures that place restrictions on the type and scope of operations that can be performed by certain processes being run by the CPU. This design allows the operating system to run with more privileges than application software.Ideally, only highly trusted kernel code is allowed to execute in the unrestricted mode; everything else (including non-supervisory portions of the operating system) runs in a restricted mode and must use a system call to request the kernel perform on its behalf any operation that could damage or compromise the system, making it impossible for untrusted programs to alter or damage other programs (or the computing system itself).In practice, however, system calls take time and can hurt the performance of a computing system, so it is not uncommon for system designers to allow some time-critical software (especially device drivers) to run with full kernel privileges.Multiple modes can be implemented—allowing a hypervisor to run multiple operating system supervisors beneath it, which is the basic design of many virtual machine systems available today.".
- CPU_modes wikiPageID "3991954".
- CPU_modes wikiPageLength "4099".
- CPU_modes wikiPageOutDegree "19".
- CPU_modes wikiPageRevisionID "702150548".
- CPU_modes wikiPageWikiLink Application_software.
- CPU_modes wikiPageWikiLink Category:Central_processing_unit.
- CPU_modes wikiPageWikiLink Category:Computer_security.
- CPU_modes wikiPageWikiLink Central_processing_unit.
- CPU_modes wikiPageWikiLink Computer_architecture.
- CPU_modes wikiPageWikiLink Device_driver.
- CPU_modes wikiPageWikiLink Hypervisor.
- CPU_modes wikiPageWikiLink IA-64.
- CPU_modes wikiPageWikiLink Intel_80286.
- CPU_modes wikiPageWikiLink Kernel_(operating_system).
- CPU_modes wikiPageWikiLink Multics.
- CPU_modes wikiPageWikiLink Operating_system.
- CPU_modes wikiPageWikiLink Page_table.
- CPU_modes wikiPageWikiLink Popek_and_Goldberg_virtualization_requirements.
- CPU_modes wikiPageWikiLink Process_(computing).
- CPU_modes wikiPageWikiLink Protected_mode.
- CPU_modes wikiPageWikiLink System_call.
- CPU_modes wikiPageWikiLink Virtual_machine.
- CPU_modes wikiPageWikiLink Virtual_memory.
- CPU_modes wikiPageWikiLinkText "CPU mode".
- CPU_modes wikiPageWikiLinkText "CPU modes".
- CPU_modes wikiPageWikiLinkText "kernel-mode".
- CPU_modes wikiPageWikiLinkText "mode".
- CPU_modes wikiPageWikiLinkText "processor mode".
- CPU_modes wikiPageWikiLinkText "security model".
- CPU_modes wikiPageUsesTemplate Template:Details.
- CPU_modes wikiPageUsesTemplate Template:Operating_System.
- CPU_modes wikiPageUsesTemplate Template:Unreferenced.
- CPU_modes subject Category:Central_processing_unit.
- CPU_modes subject Category:Computer_security.
- CPU_modes hypernym Modes.
- CPU_modes type Area.
- CPU_modes type PublicTransitSystem.
- CPU_modes type Area.
- CPU_modes comment "CPU modes (also called processor modes, CPU states, CPU privilege levels and other names) are operating modes for the central processing unit of some computer architectures that place restrictions on the type and scope of operations that can be performed by certain processes being run by the CPU.".
- CPU_modes label "CPU modes".
- CPU_modes sameAs Q2247050.
- CPU_modes sameAs Režimy_procesoru.
- CPU_modes sameAs Kernel_mode.
- CPU_modes sameAs CPUモード.
- CPU_modes sameAs m.0bbg2k.
- CPU_modes sameAs Режим_работы_процессора.
- CPU_modes sameAs Kernel_mode.
- CPU_modes sameAs Q2247050.
- CPU_modes sameAs 核心态.
- CPU_modes wasDerivedFrom CPU_modes?oldid=702150548.
- CPU_modes isPrimaryTopicOf CPU_modes.