12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767625 | 07/13/2023 | Public |
Interrupt Remapping Table Address Register (IRTA_REG_0_0_0_VTDBAR) – Offset B8
Register providing the base address of Interrupt remapping table. This register is treated as RsvdZ by implementations reporting Interrupt Remapping (IR) as not supported in the Extended Capability register.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
63:12 | 0x0 | RW | Interrupt Remapping Table Address (IRTA) This field points to the base of 4KB aligned interrupt remapping table Hardware ignores and does not implement bits 63:HAW, where HAW is the host address width Reads of this field returns value that was last programmed to it. |
11 | 0x0 | RW | Extended Interrupt Mode Enable (EIME) This field is used by hardware on Intel64 platforms as follows: |
10:4 | 0h | RO | Reserved |
3:0 | 0x0 | RW | Size (S) This field specifies the size of the interrupt remapping table. The number of entries in the interrupt remapping table is 2(X+1), where X is the value programmed in this field. |