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| author | Borislav Petkov (AMD) <bp@alien8.de> | 2024-02-05 16:46:01 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-02-17 09:09:16 +0800 |
| commit | 6e031ef2c201cea07bea3b286ed151378c4099f3 (patch) | |
| tree | 836c2a522b7a3a3c34c1aba6401f6525b047848b | |
| parent | e8829ef1f73fa4051a936ab9f0204195dae4ef2b (diff) | |
| download | crypto-2.6-6e031ef2c201cea07bea3b286ed151378c4099f3.tar.gz | |
crypto: ccp - State in dmesg that TSME is enabled
In the case when only TSME is enabled, it is useful to state that fact
too, so that users are aware that memory encryption is still enabled
even when the corresponding software variant of memory encryption is not
enabled.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/ccp/psp-dev.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 124a2e0c899937..56bf832c294777 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -156,11 +156,14 @@ static unsigned int psp_get_capability(struct psp_device *psp) } psp->capability = val; - /* Detect if TSME and SME are both enabled */ + /* Detect TSME and/or SME status */ if (PSP_CAPABILITY(psp, PSP_SECURITY_REPORTING) && - psp->capability & (PSP_SECURITY_TSME_STATUS << PSP_CAPABILITY_PSP_SECURITY_OFFSET) && - 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"); + psp->capability & (PSP_SECURITY_TSME_STATUS << PSP_CAPABILITY_PSP_SECURITY_OFFSET)) { + 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; } |