]> 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 05:39:16 +0000 (07:39 +0200)
commit9d18fcd0abc5db02ec27ac72949c509820ea4bf1
tree95e35e74cb56db51ff88f1d27cab695844e49faa
parent2f39c1bc6727bb065c9f84d9689974afdd5e4220
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