Intel® Core™ Ultra Processors for H-series and U-series Platforms CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 795258 | 12/14/2023 | Public |
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Base Data of Stolen Memory (BDSM_0_0_0_PCI) – Offset b0
This register contains the base address of graphics data stolen DRAM memory. BIOS determines the base of graphics data stolen memory by subtracting the graphics data stolen memory size (PCI Device 0 offset 52 bits 7:4) from TOLUD (PCI Device 0 offset BC bits 31:20).
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:20 | 0h | RW/L | (BDSM) This register contains bits 31 to 20 of the base address of stolen DRAM memory. BIOS determines the base of graphics stolen memory by subtracting the graphics stolen memory size (PCI Device 0 offset 50 bits 15:8) from TOLUD (PCI Device 0 offset BC bits 31:20). |
| 19:1 | 0h | RO | Reserved |
| 0 | 0h | RW/L | (LOCK) This bit will lock all writable settings in this register, including itself. |