FS#59463 - [linux-hardened] 4.17.x AMD memory encryption doesn't work with amdgpu
Attached to Project:
Arch Linux
Opened by mailoxy (mailoxy) - Thursday, 26 July 2018, 20:54 GMT
Last edited by Toolybird (Toolybird) - Monday, 29 May 2023, 03:31 GMT
Opened by mailoxy (mailoxy) - Thursday, 26 July 2018, 20:54 GMT
Last edited by Toolybird (Toolybird) - Monday, 29 May 2023, 03:31 GMT
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Details
AMD memory encryption doesn't work with amdgpu. Must either
AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT be unset or
mem_encrypt=off must be used on boot.
Tested on the following configuration: AMD Ryzen 5 1600 Six-Core Processor Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon RX 550 640SP / RX 560/560X] (rev ff) |
This task depends upon
Closed by Toolybird (Toolybird)
Monday, 29 May 2023, 03:31 GMT
Reason for closing: Fixed
Additional comments about closing: See comments
Monday, 29 May 2023, 03:31 GMT
Reason for closing: Fixed
Additional comments about closing: See comments
Please also see https://lkml.org/lkml/2018/6/6/451 and https://bugs.freedesktop.org/show_bug.cgi?id=104437
mem_encrypt=off needed to boot with amdgpu
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7cad554887f1c5fd77e57e6bf4be38370c2160cb
edit: seems they backported the fixes to 5.8.10 as well