]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
crypto: ccp - Fix check for the primary ASP device
authorTom Lendacky <thomas.lendacky@amd.com>
Fri, 17 Jan 2025 23:05:47 +0000 (17:05 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 2 May 2025 05:44:05 +0000 (07:44 +0200)
commit9c5eedb065fa3373a3301ccfceaf8a317d61fd19
treee72f6a679111bff2c2ab0dbc7029c7a82f3d5823
parent2e794415ff7f207d7e84781a152de74192e69cd1
crypto: ccp - Fix check for the primary ASP device

commit 07bb097b92b987db518e72525b515d77904e966e upstream.

Currently, the ASP primary device check does not have support for PCI
domains, and, as a result, when the system is configured with PCI domains
(PCI segments) the wrong device can be selected as primary. This results
in commands submitted to the device timing out and failing. The device
check also relies on specific device and function assignments that may
not hold in the future.

Fix the primary ASP device check to include support for PCI domains and
to perform proper checking of the Bus/Device/Function positions.

Fixes: 2a6170dfe755 ("crypto: ccp: Add Platform Security Processor (PSP) device support")
Cc: stable@vger.kernel.org
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/crypto/ccp/sp-pci.c