[SOLVED] AMD Processors and amd_pstate.shared_mem=1

[utkonos]

I was reviewing the syslogs on a new install of PVE and noticed this entry:

kernel: amd_pstate: This processor supports shared memory solution, you can enable it with amd_pstate.shared_mem=1

The processor hardware is an AMD processor, and this indicates that I should be able to enable this feature. Looking at the current command line in grub's config shows the following:

GRUB_CMDLINE_LINUX_DEFAULT="quiet"

To enable this feature the line in the config would be changed to:

GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_pstate.shared_mem=1"

I would then run update-grub and reboot.

Do the above steps look correct, or are there any Proxmox-specific steps that I should take into consideration?

 

[fiona]

Hi,
AFAIK we don't have documentation about this yet, but other users have discussed it here: https://forum.proxmox.com/threads/amd-pstate-driver-steps-and-discussion.118873/

 

[Neobin]

In general:

1. Determine which bootloader is used: [1]
2. Edit the kernel command line: [2]

[1] https://pve.proxmox.com/wiki/Host_Bootloader#sysboot_determine_bootloader_used
[2] https://pve.proxmox.com/wiki/Host_Bootloader#sysboot_edit_kernel_cmdline

 

[utkonos]

@fiona @Neobin Thanks!