On 1/17/21 4:16 AM, Domen Stangar wrote:
Sorry for late answer, somewhat missed mail.
dmesg last lines that where added
[ 325.691756] ccp 0000:0a:00.2: enabling device (0000 -> 0002)
[ 325.692217] ccp 0000:0a:00.2: ccp enabled
[ 325.702401] ccp 0000:0a:00.2: tee enabled
[ 325.702405] ccp 0000:0a:00.2: psp enabled
/sys/kernel/debug/ccp/ccp-1/stats
Total Interrupts Handled: 0
Total Operations: 1
AES: 0
XTS AES: 0
SHA: 0
SHA: 0
RSA: 0
Pass-Thru: 1
ECC: 0
interrupts output attached.
Ok, the interrupts are not being delivered from the CCP (running in the
AMD Secure Processor or psp) to the x86. This is a BIOS/AGESA issue that
will require a BIOS fix. I don't know what level of AGESA it will be
delivered in and when your BIOS supplier would incorporate it, so my only
suggestion is to not use the ccp and ccp-crypto modules for now.
Thanks,
Tom
Domen
------ Original Message ------
From: "John Allen" <john.al...@amd.com>
To: "Domen Stangar" <domen.stan...@gmail.com>
Cc: "Tom Lendacky" <thomas.lenda...@amd.com>;
"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>
Sent: 07/01/2021 17:10:50
Subject: Re: problem with ccp-crypto module on apu
On Mon, Jan 04, 2021 at 04:10:26PM +0000, Domen Stangar wrote:
Device name: ccp-1
RNG name: ccp-1-rng
# Queues: 3
# Cmds: 0
Version: 5
Engines: AES 3DES SHA RSA ECC ZDE TRNG
Queues: 5
LSB Entries: 128
Let me know if you need anything else.
Hi Domen,
Looks like we may have a lead on this problem.
Could you provide the following when you're loading the module?
dmesg
/proc/interrupts
/sys/kernel/debug/ccp/ccp-1/stats
Thanks,
John
Domen
> Domen, do you have the debugfs support enabled? Could you supply the
output from /sys/kernel/debug/ccp/ccp-X/info (where X is replaced with
each of the present ccp ordinal values)?
>
> Thanks,
> Tom
>
