根据你的BIOS版本不同,你可能需要找到“Advanced”(高级)或“Security”(安全)选项。在这些选项中继续查找与DMA相关的设置。 关闭DMA保护:找到DMA选项后,你可能会看到“DMA Protection”或类似的设置项。选中此选项,并将其值更改为“Disabled”(禁用)。在某些主板上,DMA保护可能被命名为“DMA Control Guarantee”或其...
BIOS Setup 63 ▶ Control IOMMU Pre-boot Behavior Enables or disables the IOMMU (I/O Memory Management Unit) in pre-boot environment. This item is available when the Intel VT-D sets to Enabled. ▶ DMA Control Guarantee Enables or disables the DMA (Direct Memory Access) control guarantee....
Control dependencies can order prior loads against later stores. However, they do -not- guarantee any other sort of ordering: Not prior loads against later loads, nor prior stores against later anything. If you need these other forms of ordering, use smp_rmb(), smp_wmb(), or, in the ca...
For example, on a traditional x86 platform, the PCI Root Bridge driver just return same address of host memory, because the x86 architecture can guarantee the DMA and the cache are consistent. An I/O agent can perform the direct memory access (DMA) to write-back memory ...
for "16Mb"), but I * won't guarantee that's all :-( ) */ /* 这个子程序通过设置控制寄存器 cr0 的标志(PG 位 31)来启动对内存的分页处理功能, 并设置各个页表项的内容,以恒等映射前 16MB 的物理内存。分页器假定不会产生非法的 地址映射(也即在只有 Mb 的机器上设置出大于 4Mb 的内存地址)...
slower”communications ••••••PCIbus,ISAbus,SMBusDMAcontrollerIDE(SATAorPATA)controllerLPCBridgeRealTimeClockNonvolatileBIOSmemory –Etymology •Drawthearchitectureinthefashionofamap•Locatesouthofothersystemdevicesasdrawn 6PresentationTitle FlashROM •FlashROM –Floatinggatetransistors(Cells)
radioandevisioncommunications.However,thereisnoguaranteethatinterferencewill notoccurinaparticularinstallation. Ifthisequipmentdoescauseharmfulinterferencetoradioorevisionreception,which canbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotryto correcttheinterferencebyoneormoreofthefollowingmeasures: ...
Simply installing processors with virtualization extensions does not always guarantee optimum performance or best host server stability; you must enable a variety of BIOS settings to manage details of the processors' virtualization behavior. The options allow IT professionals to configure host platforms to...
For example, on a traditional x86 platform, the PCI Root Bridge driver just return same address of host memory, because the x86 architecture can guarantee the DMA and the cache are consistent. An I/O agent can perform the direct memory access (DMA) to write-back me...
of Windows, these drivers typically experienced compatibility issues. However, there is no guarantee that all drivers have been updated to fix PAE-mode-induced compatibility issues. However, there are few drivers that use these techniques. DEP alone does not typically cause driver compatibility issues...