[PATCH v2 5/5] crypto: ccp: Move message about TSME being enabled later in init

From: Mario Limonciello
Date: Tue May 28 2024 - 17:09:13 EST


Some of the security attributes data is now populated from an HSTI
command on some processors, so show the message after it has been
populated.

Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
v1->v2:
* Move code from patch 4
---
drivers/crypto/ccp/hsti.c | 15 +++++++++++++++
drivers/crypto/ccp/psp-dev.c | 8 --------
2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/ccp/hsti.c b/drivers/crypto/ccp/hsti.c
index 8b99bbd4efe2..1b39a4fb55c0 100644
--- a/drivers/crypto/ccp/hsti.c
+++ b/drivers/crypto/ccp/hsti.c
@@ -119,5 +119,20 @@ int psp_init_hsti(struct psp_device *psp)
return ret;
}

+ /*
+ * At this stage, if security information hasn't been populated by
+ * either the PSP or by the driver through the platform command,
+ * then there is nothing more to do.
+ */
+ if (!psp->capability.security_reporting)
+ return 0;
+
+ if (psp->capability.tsme_status) {
+ if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT))
+ dev_notice(psp->dev, "psp: Both TSME and SME are active, SME is unnecessary when TSME is active.\n");
+ else
+ dev_notice(psp->dev, "psp: TSME enabled\n");
+ }
+
return 0;
}
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c
index 0a01ad134609..1c5a7189631e 100644
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -157,14 +157,6 @@ static unsigned int psp_get_capability(struct psp_device *psp)
}
psp->capability.raw = val;

- /* Detect TSME and/or SME status */
- if (psp->capability.security_reporting && psp->capability.tsme_status) {
- if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT))
- dev_notice(psp->dev, "psp: Both TSME and SME are active, SME is unnecessary when TSME is active.\n");
- else
- dev_notice(psp->dev, "psp: TSME enabled\n");
- }
-
return 0;
}

--
2.43.0