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crypto: ccp - Log when resetting PSP SEV state 

Currently when the PSP returns a SECURE_DATA_INVALID error on INIT or
INIT_EX the driver retries the command once which should reset the PSP's
state SEV related state, meaning the PSP will regenerate its keying
material. This is logged with a dbg log but given this will change
system state this should be logged at a higher priority and with more
information.

Signed-off-by: Peter Gonda <pgonda@google.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: John Allen <john.allen@amd.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Peter Gonda 2022-04-13 08:58:35 -07:00 committed by Herbert Xu
parent 32547a6aed
commit a77aba3109
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/ccp/sev-dev.c
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@ -435,7 +435,7 @@ static int __sev_platform_init_locked(int *error)
* initialization function should succeed by replacing the state
* with a reset state.
*/
dev_dbg(sev->dev, "SEV: retrying INIT command");
dev_err(sev->dev, "SEV: retrying INIT command because of SECURE_DATA_INVALID error. Retrying once to reset PSP SEV state.");
rc = init_function(&psp_ret);
}
if (error)