]> 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>
Sun, 20 Apr 2025 08:18:20 +0000 (10:18 +0200)
commitd4656cbb2f4b15caea8e2b93bd9c62091f01a0a7
tree329c4f23f511b1fe09b2c99afb2a2a083aa13bd0
parent5f270539f9441444742d93e7cde76661f8e1d990
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