diff options
Diffstat (limited to 'drivers/crypto/ccp/sev-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index f527e5f9ed1f..ef7e8b4c6e02 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -241,7 +241,7 @@ static int __sev_platform_init_locked(int *error) struct psp_device *psp = psp_master; struct sev_data_init data; struct sev_device *sev; - int rc = 0; + int psp_ret, rc = 0; if (!psp || !psp->sev_data) return -ENODEV; @@ -266,7 +266,21 @@ static int __sev_platform_init_locked(int *error) data.tmr_len = SEV_ES_TMR_SIZE; } - rc = __sev_do_cmd_locked(SEV_CMD_INIT, &data, error); + rc = __sev_do_cmd_locked(SEV_CMD_INIT, &data, &psp_ret); + if (rc && psp_ret == SEV_RET_SECURE_DATA_INVALID) { + /* + * Initialization command returned an integrity check failure + * status code, meaning that firmware load and validation of SEV + * related persistent data has failed. Retrying the + * initialization function should succeed by replacing the state + * with a reset state. + */ + dev_dbg(sev->dev, "SEV: retrying INIT command"); + rc = __sev_do_cmd_locked(SEV_CMD_INIT, &data, &psp_ret); + } + if (error) + *error = psp_ret; + if (rc) return rc; @@ -1091,18 +1105,6 @@ void sev_pci_init(void) /* Initialize the platform */ rc = sev_platform_init(&error); - if (rc && (error == SEV_RET_SECURE_DATA_INVALID)) { - /* - * INIT command returned an integrity check failure - * status code, meaning that firmware load and - * validation of SEV related persistent data has - * failed and persistent state has been erased. - * Retrying INIT command here should succeed. - */ - dev_dbg(sev->dev, "SEV: retrying INIT command"); - rc = sev_platform_init(&error); - } - if (rc) { dev_err(sev->dev, "SEV: failed to INIT error %#x, rc %d\n", error, rc); |