Change in coreboot[master]: mb/intel/adlrvp: Update PMC Descriptor for Alder lake A0(906a0h) silicon

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Selma Bensaid, Sridhar Siricilla, Rizwan Qureshi, Subrata Banik, Werner Zeh.
Sridhar Siricilla has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56073 )

Change subject: mb/intel/adlrvp: Update PMC Descriptor for Alder lake A0(906a0h) silicon
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Patch Set 5:

(1 comment)

File src/mainboard/intel/adlrvp/bootblock.c:

https://review.coreboot.org/c/coreboot/+/56073/comment/78518c89_aeb61b9d 
PS1, Line 36: if (rdev_eraseat(&desc_rdev, 0, SI_DESC_REGION_SZ) != SI_DESC_REGION_SZ) {
            : 			printk(BIOS_ERR, "Failed to erase Descriptor Region area\n");
            : 			return;
            : 		}
            : 
            : 		if (rdev_writeat(&desc_rdev, si_desc_buf, 0, SI_DESC_REGION_SZ)
            : 				!= SI_DESC_REGION_SZ) {
            : 			printk(BIOS_ERR, "Failed to update Descriptor Region\n");
            : 			return;
            : 		}
> Isn't this only possible if you have granted write permission to the x86 host for the descriptor reg […]

Ack