Following is from lspci output on my debian 10 (proxmox kernel 5.4.78-2-pve, with an AMD Ryzen 5 PRO 4650G apu on an Asrock B450 Pro R2.0 motherboard:
0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
Subsystem: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fc700000 (32-bit, non-prefetchable) [size=1M]
Memory at fc88c000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [64] Express Endpoint, MSI 00
Capabilities: [a0] MSI: Enable- Count=1/2 Maskable- 64bit+
Capabilities: [c0] MSI-X: Enable- Count=2 Masked-
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
My questions are:
1- what exactly is an âEncryption controllerâ? Do I have it because my CPU is âproâ? I am assuming some sort of hardware offloading, but more information would be good.
2- why doesnât it have a kernel driver or a kernel module? do I need to install something?
You are right I have it in my other Ryzen CPUs as well. I also have the ccp kernel module in fedora (32 kernel 5.10.12) , but I didnât have it in debian 10. It probably have something to do with the kernel version and not a missing package. debian 10 is on 4.9. Anyway, now that I know what I am looking for, Iâll find it .