Acer E3-1220 v3 KC.12201.3E3 用户手册

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Memory controller and processor graphics comply with the Intel VT-d 1.2

Specification.

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Two Intel VT-d DMA remap engines.
— iGFX DMA remap engine
— Default DMA remap engine (covers all devices except iGFX)

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Support for root entry, context entry, and default context

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39-bit guest physical address and host physical address widths

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Support for 4K page sizes only

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Support for register-based fault recording only (for single entry only) and support

for MSI interrupts for faults

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Support for both leaf and non-leaf caching

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Support for boot protection of default page table

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Support for non-caching of invalid page table entries

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Support for hardware based flushing of translated but pending writes and pending

reads, on IOTLB invalidation

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Support for Global, Domain specific and Page specific IOTLB invalidation

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MSI cycles (MemWr to address FEEx_xxxxh) not translated
— Translation faults result in cycle forwarding to VBIOS region (byte enables

masked for writes). Returned data may be bogus for internal agents; PEG/DMI

interfaces return unsupported request status

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Interrupt Remapping is supported

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Queued invalidation is supported

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Intel VT-d translation bypass address range is supported (Pass Through)

The processor supports the following added new Intel VT-d features:
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4-level Intel VT-d Page walk – both default Intel VT-d engine, as well as the IGD

VT-d engine, are upgraded to support 4-level Intel VT-d tables (adjusted guest

address width 48)

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Intel VT-d superpage – support of Intel VT-d superpage (2 MB, 1 GB) for default

Intel VT-d engine (that covers all devices except IGD)
IGD Intel VT-d engine does not support superpage and BIOS should disable

superage in default Intel VT-d engine when iGfx is enabled.

Intel VT-d Technology may not be available on all SKUs.

Intel Trusted Execution Technology (Intel TXT) defines platform-level enhancements

that provide the building blocks for creating trusted platforms.

The Intel TXT platform helps to provide the authenticity of the controlling environment

such that those wishing to rely on the platform can make an appropriate trust

decision. The Intel TXT platform determines the identity of the controlling environment

by accurately measuring and verifying the controlling software.

Intel

®

 Xeon

®

 Processor E3-1200 v3 Product Family

Datasheet – Volume 1 of 2

June 2013

42

Order No.: 328907-001