]> 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, 25 Apr 2025 08:43:44 +0000 (10:43 +0200)
commit0642f87cbf61d99142f526702a6897bcf5c4105c
tree512bac1a33ef431b5034e9b837f5a71908beede4
parent8b75a7c1e4a3dea99fbd9870776326bb04831547
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