12th Generation Intel® Core™ Processor Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767626 | 07/13/2023 | Public |
Page Request Queue Address Register (PQA_REG_0_0_0_VTDBAR) – Offset D0
Register to configure the base address and size of the page request queue. This register is treated as RsvdZ by implementations reporting Page Request Support (PRS) as not supported in the Extended Capability register.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
63:46 | 0h | RO | Reserved |
45:12 | 0x0 | RW | Page Request Queue Base Address (PQA) This field points to the base of 4KB aligned page request queue. Hardware may ignore and not implement bits 63:HAW, where HAW is the host address width. Software must configure this register before enabling page requests in any extended-context-entries. |
11:3 | 0h | RO | Reserved |
2:0 | 0x0 | RW | Page Request Queue Size (PQS) This field specifies the size of the page request queue. A value of X in this field indicates an invalidation request queue of (2^X) 4KB pages. The number of entries in the page request queue is 2^(X + 8) |