diff options
Diffstat (limited to 'drivers/crypto/ccp/psp-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/psp-dev.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 56bf832c2947..1c5a7189631e 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -19,6 +19,7 @@ #include "tee-dev.h" #include "platform-access.h" #include "dbc.h" +#include "hsti.h" struct psp_device *psp_master; @@ -154,16 +155,7 @@ static unsigned int psp_get_capability(struct psp_device *psp) dev_notice(psp->dev, "psp: unable to access the device: you might be running a broken BIOS.\n"); return -ENODEV; } - psp->capability = val; - - /* Detect TSME and/or SME status */ - if (PSP_CAPABILITY(psp, PSP_SECURITY_REPORTING) && - 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"); - } + psp->capability.raw = val; return 0; } @@ -171,7 +163,7 @@ static unsigned int psp_get_capability(struct psp_device *psp) static int psp_check_sev_support(struct psp_device *psp) { /* Check if device supports SEV feature */ - if (!PSP_CAPABILITY(psp, SEV)) { + if (!psp->capability.sev) { dev_dbg(psp->dev, "psp does not support SEV\n"); return -ENODEV; } @@ -182,7 +174,7 @@ static int psp_check_sev_support(struct psp_device *psp) static int psp_check_tee_support(struct psp_device *psp) { /* Check if device supports TEE feature */ - if (!PSP_CAPABILITY(psp, TEE)) { + if (!psp->capability.tee) { dev_dbg(psp->dev, "psp does not support TEE\n"); return -ENODEV; } @@ -214,12 +206,17 @@ static int psp_init(struct psp_device *psp) /* dbc must come after platform access as it tests the feature */ if (PSP_FEATURE(psp, DBC) || - PSP_CAPABILITY(psp, DBC_THRU_EXT)) { + psp->capability.dbc_thru_ext) { ret = dbc_dev_init(psp); if (ret) return ret; } + /* HSTI uses platform access on some systems. */ + ret = psp_init_hsti(psp); + if (ret) + return ret; + return 0; } |