From: Mario Limonciello <mario.limonciello@amd.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Mario Limonciello <mario.limonciello@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"open list:AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER - DB..."
<linux-crypto@vger.kernel.org>,
Richard Hughes <hughsient@gmail.com>,
open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 5/5] crypto: ccp: Move message about TSME being enabled later in init
Date: Tue, 28 May 2024 16:07:12 -0500 [thread overview]
Message-ID: <20240528210712.1268-6-mario.limonciello@amd.com> (raw)
In-Reply-To: <20240528210712.1268-1-mario.limonciello@amd.com>
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@amd.com>
---
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
next prev parent reply other threads:[~2024-05-28 21:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-28 21:07 [PATCH v2 0/5] Enable PSP security attributes on more SoCs Mario Limonciello
2024-05-28 21:07 ` [PATCH v2 1/5] crypto: ccp: Represent capabilities register as a union Mario Limonciello
2024-05-28 21:07 ` [PATCH v2 2/5] crypto: ccp: Move security attributes to their own file Mario Limonciello
2024-05-29 15:20 ` Tom Lendacky
2024-05-29 16:22 ` Mario Limonciello
2024-05-29 16:50 ` Tom Lendacky
2024-05-28 21:07 ` [PATCH v2 3/5] crypto: ccp: align psp_platform_access_msg Mario Limonciello
2024-05-28 21:07 ` [PATCH v2 4/5] crypto: ccp: Add support for getting security attributes on some older systems Mario Limonciello
2024-05-29 15:21 ` Tom Lendacky
2024-05-28 21:07 ` Mario Limonciello [this message]
2024-05-29 15:22 ` [PATCH v2 5/5] crypto: ccp: Move message about TSME being enabled later in init Tom Lendacky
2024-05-29 8:07 ` [PATCH v2 0/5] Enable PSP security attributes on more SoCs Richard Hughes
2024-06-07 11:54 ` Herbert Xu
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