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| author | Harald Freudenberger <freude@linux.ibm.com> | 2024-02-09 16:20:21 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-02-16 14:30:13 +0100 |
| commit | b69b65f51148531ff3dd942a038614f77d9d60e3 (patch) | |
| tree | ac4646c6edcd23e09856be49213984d8667dff3f /drivers/s390/crypto | |
| parent | s390/ap: add debug possibility for AP messages (diff) | |
| download | linux-b69b65f51148531ff3dd942a038614f77d9d60e3.tar.xz linux-b69b65f51148531ff3dd942a038614f77d9d60e3.zip | |
s390/zcrypt: add debug possibility for CCA and EP11 messages
This patch introduces dynamic debug hexdump invocation
possibilities to be able to:
- dump an CCA or EP11 CPRB request as early as possible
when received via ioctl from userspace but after the
ap message has been collected together.
- dump an CCA or EP11 CPRB reply short before it is
transferred via ioctl into userspace.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 00e7e05a289c..e8742757085b 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -866,6 +866,8 @@ static long _zcrypt_send_cprb(bool userspace, struct ap_perms *perms, rc = prep_cca_ap_msg(userspace, xcrb, &ap_msg, &func_code, &domain); if (rc) goto out; + print_hex_dump_debug("ccareq: ", DUMP_PREFIX_ADDRESS, 16, 1, + ap_msg.msg, ap_msg.len, false); tdom = *domain; if (perms != &ap_perms && tdom < AP_DOMAINS) { @@ -953,6 +955,10 @@ static long _zcrypt_send_cprb(bool userspace, struct ap_perms *perms, *domain = AP_QID_QUEUE(qid); rc = pref_zq->ops->send_cprb(userspace, pref_zq, xcrb, &ap_msg); + if (!rc) { + print_hex_dump_debug("ccarpl: ", DUMP_PREFIX_ADDRESS, 16, 1, + ap_msg.msg, ap_msg.len, false); + } spin_lock(&zcrypt_list_lock); zcrypt_drop_queue(pref_zc, pref_zq, mod, wgt); @@ -1046,6 +1052,8 @@ static long _zcrypt_send_ep11_cprb(bool userspace, struct ap_perms *perms, rc = prep_ep11_ap_msg(userspace, xcrb, &ap_msg, &func_code, &domain); if (rc) goto out_free; + print_hex_dump_debug("ep11req: ", DUMP_PREFIX_ADDRESS, 16, 1, + ap_msg.msg, ap_msg.len, false); if (perms != &ap_perms && domain < AUTOSEL_DOM) { if (ap_msg.flags & AP_MSG_FLAG_ADMIN) { @@ -1130,6 +1138,10 @@ static long _zcrypt_send_ep11_cprb(bool userspace, struct ap_perms *perms, qid = pref_zq->queue->qid; rc = pref_zq->ops->send_ep11_cprb(userspace, pref_zq, xcrb, &ap_msg); + if (!rc) { + print_hex_dump_debug("ep11rpl: ", DUMP_PREFIX_ADDRESS, 16, 1, + ap_msg.msg, ap_msg.len, false); + } spin_lock(&zcrypt_list_lock); zcrypt_drop_queue(pref_zc, pref_zq, mod, wgt); |