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Microsoft Windows Logo Program System and Device Requirements  —  47

This DAC requirement does not apply to outbound accesses to PCI devices. However, for systems where DAC is not supported on outbound accesses to PCI devices, the system firmware must not claim that the bus aperture can be placed above the 4-GB boundary.

All 64-bit PCI adapters must be able to address any location in the address space supported by the platform.

The server system must support a 64-bit PCI bus if the server has 64-bit processors or has the capability to support more than 4 GB of physical memory.

In particular, access to PCI configuration space must use mechanisms that do not directly reference PCI configuration space but that instead use the services provided by the SAL or other services which in turn call SAL services.

See also:

Ref A1.1.4 Provide PCI interrupt routing information per ACPI 2.0 Section 6.2.8.

Ref B2.5.1.7 Adapters address full physical address space on a 64-bit platform; 32-bit PCI adapters used on the primary data path support the PCI DAC command, with the exception of 10/100 Ethernet devices.

A5.4.6 Provide correct device support
A5.4.6.1 System does not include parallel port

64-bit Windows does not provide native legacy parallel port support. Parallel ports must not be present in Itanium-based systems.

Note: 64-bit Windows does not provide native legacy parallel port support.

A5.4.6.2 Primary graphics adapter supports 800x600x256 color and complies with VESA timing standards

At a minimum, the adapter must support 800 × 600 × 256 color, following the VESA monitor timing standards and guidelines for this mode.

A5.4.6.3 Server with no 8042 or other port 60h and port 64h based keyboard controller meets requirements

System designs that remove legacy (port 60h/port 64h) keyboard controllers, typically implemented using 8042 or similar controllers, must meet these requirements to function with Windows. Specifically, these systems must properly set Fixed ACPI Description Table Boot Architecture Flags as described in the ACPI 2.0 specification.

A5.4.7 Provide GPT-partitioned hard drive for boot

64-bit Windows requires bootable hard drives to be partitioned using the GPT mechanism defined in EFI 1.0. This is also the 64-bit Windows default partitioning scheme for all non-removable storage media.

A5.4.7.1 System with GPT-partitioned bootable hard disks provide one ESP of correct size

64-bit Windows requires bootable hard drives to contain a single EFI System Partition (ESP) of size Max(100MB, min (1% of the physical disk size, 1GB)) as defined in EFI 1.0. This formula is to be read, in words, as “the size of the ESP must be the larger of these two numbers, 100MB or 1% of the physical disk size (up to 1GB).” The physical disk size is measured at the time of disk partitioning.

A5.4.7.2 System with ESP contains only components needed for system boot, installation, or recovery

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