Intel i7-3920XM Extreme AW8063801009607 User Manual
Product codes
AW8063801009607
Processor Configuration Registers
264
Datasheet, Volume 2
12:8
RO
00010b
Uncore
Supported Adjusted Guest Address Widths (SAGAW)
This 5-bit field indicates the supported adjusted guest address
This 5-bit field indicates the supported adjusted guest address
widths (which in turn represents the levels of page-table walks
for the 4 KB base page size) supported by the hardware
implementation.
A value of 1 in any of these bits indicates the corresponding
A value of 1 in any of these bits indicates the corresponding
adjusted guest address width is supported. The adjusted guest
address widths corresponding to various bit positions within this
field are:
0 = 30-bit AGAW (2-level page table)
1 = 39-bit AGAW (3-level page table)
2 = 48-bit AGAW (4-level page table)
3 = 57-bit AGAW (5-level page table)
4 = 64-bit AGAW (6-level page table)
Software must ensure that the adjusted guest address width
0 = 30-bit AGAW (2-level page table)
1 = 39-bit AGAW (3-level page table)
2 = 48-bit AGAW (4-level page table)
3 = 57-bit AGAW (5-level page table)
4 = 64-bit AGAW (6-level page table)
Software must ensure that the adjusted guest address width
used to setup the page tables is one of the supported guest
address widths reported in this field.
7
RO
0b
Uncore
Caching Mode (CM)
0 = Not-present and erroneous entries are not cached in any of
0 = Not-present and erroneous entries are not cached in any of
the remapping caches. Invalidations are not required for
modifications to individual not present or invalid entries.
However, any modifications that result in decreasing the
effective permissions or partial permission increases require
invalidations for them to be effective.
1 = Not-present and erroneous mappings may be cached in the
remapping caches. Any software updates to the remapping
structures (including updates to "not-present" or erroneous
entries) require explicit invalidation.
Hardware implementations of this architecture must support a
value of 0 in this field.
6
RO
1b
Uncore
Protected High-Memory Region (PHMR)
0 = Protected high-memory region is not supported.
1 = Protected high-memory region is supported.
0 = Protected high-memory region is not supported.
1 = Protected high-memory region is supported.
5
RO
1b
Uncore
Protected Low-Memory Region (PLMR)
0 = Protected low-memory region is not supported.
1 = Protected low-memory region is supported.
0 = Protected low-memory region is not supported.
1 = Protected low-memory region is supported.
B/D/F/Type:
0/0/0/GFXVTBAR
Address Offset:
8–Fh
Reset Value:
00C0000020E60262h
Access:
RO
Size:
64 bits
BIOS Optimal Default
000h
Bit
Access
Reset
Value
RST/
PWR
Description