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[v2,1/9] crypto: ccp: Move dev_info/err messages for SEV/SNP initialization

Message ID ddbf0b28d3c7127e0489ce7ec817b9b4f0c9d476.1734392473.git.ashish.kalra@amd.com
State New
Headers show
Series Move initializing SEV/SNP functionality to KVM | expand

Commit Message

Kalra, Ashish Dec. 16, 2024, 11:57 p.m. UTC 
From: Ashish Kalra <ashish.kalra@amd.com>

Remove dev_info and dev_err messages related to SEV/SNP initialization
from callers and instead move those inside __sev_platform_init_locked()
and __sev_snp_init_locked().

This allows both _sev_platform_init_locked() and various SEV/SNP ioctls
to call __sev_platform_init_locked() and __sev_snp_init_locked() for
implicit SEV/SNP initialization and shutdown without additionally
printing any errors/success messages.

Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
---
 drivers/crypto/ccp/sev-dev.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)
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Patch

diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index af018afd9cd7..1c1c33d3ed9a 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -1177,19 +1177,27 @@  static int __sev_snp_init_locked(int *error)
 
 	rc = __sev_do_cmd_locked(cmd, arg, error);
 	if (rc)
-		return rc;
+		goto err;
 
 	/* Prepare for first SNP guest launch after INIT. */
 	wbinvd_on_all_cpus();
 	rc = __sev_do_cmd_locked(SEV_CMD_SNP_DF_FLUSH, NULL, error);
 	if (rc)
-		return rc;
+		goto err;
 
 	sev->snp_initialized = true;
 	dev_dbg(sev->dev, "SEV-SNP firmware initialized\n");
 
+	dev_info(sev->dev, "SEV-SNP API:%d.%d build:%d\n", sev->api_major,
+		 sev->api_minor, sev->build);
+
 	sev_es_tmr_size = SNP_TMR_SIZE;
 
+	return 0;
+
+err:
+	dev_err(sev->dev, "SEV-SNP: failed to INIT rc %d, error %#x\n",
+		rc, *error);
 	return rc;
 }
 
@@ -1268,7 +1276,7 @@  static int __sev_platform_init_locked(int *error)
 
 	rc = __sev_platform_init_handle_init_ex_path(sev);
 	if (rc)
-		return rc;
+		goto err;
 
 	rc = __sev_do_init_locked(&psp_ret);
 	if (rc && psp_ret == SEV_RET_SECURE_DATA_INVALID) {
@@ -1288,7 +1296,7 @@  static int __sev_platform_init_locked(int *error)
 		*error = psp_ret;
 
 	if (rc)
-		return rc;
+		goto err;
 
 	sev->state = SEV_STATE_INIT;
 
@@ -1296,7 +1304,7 @@  static int __sev_platform_init_locked(int *error)
 	wbinvd_on_all_cpus();
 	rc = __sev_do_cmd_locked(SEV_CMD_DF_FLUSH, NULL, error);
 	if (rc)
-		return rc;
+		goto err;
 
 	dev_dbg(sev->dev, "SEV firmware initialized\n");
 
@@ -1304,6 +1312,11 @@  static int __sev_platform_init_locked(int *error)
 		 sev->api_minor, sev->build);
 
 	return 0;
+
+err:
+	dev_err(sev->dev, "SEV: failed to INIT error %#x, rc %d\n",
+		psp_ret, rc);
+	return rc;
 }
 
 static int _sev_platform_init_locked(struct sev_platform_init_args *args)