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authorHarald Freudenberger <freude@linux.ibm.com>2023-09-12 10:02:07 +0300
committerVasily Gorbik <gor@linux.ibm.com>2023-10-16 14:04:09 +0300
commit8d6be876bbd7c09190b025ccc478260f5a40c216 (patch)
tree9ff4f4f673cce4a63ad316bd02594d824c6124e7 /drivers/s390
parenta19a161482b1739c2207861d086403389dc1bd47 (diff)
downloadlinux-8d6be876bbd7c09190b025ccc478260f5a40c216.tar.xz
s390/ap: show APFS value on error reply 0x8B
With Secure Execution the error reply RX 0x8B now carries an APFS value indicating why the request has been filtered by a lower layer of the firmware. So display this value as a warning line in the s390 debug feature trace. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/crypto/zcrypt_error.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h
index d36177e65a3d..a44fcfcec938 100644
--- a/drivers/s390/crypto/zcrypt_error.h
+++ b/drivers/s390/crypto/zcrypt_error.h
@@ -98,8 +98,22 @@ static inline int convert_error(struct zcrypt_queue *zq,
case REP88_ERROR_MESSAGE_MALFORMD: /* 0x22 */
case REP88_ERROR_KEY_TYPE: /* 0x34 */
/* RY indicates malformed request */
- ZCRYPT_DBF_WARN("%s dev=%02x.%04x RY=0x%02x => rc=EINVAL\n",
- __func__, card, queue, ehdr->reply_code);
+ if (ehdr->reply_code == REP82_ERROR_FILTERED_BY_HYPERVISOR &&
+ ehdr->type == TYPE86_RSP_CODE) {
+ struct {
+ struct type86_hdr hdr;
+ struct type86_fmt2_ext fmt2;
+ } __packed * head = reply->msg;
+ unsigned int apfs = *((u32 *)head->fmt2.apfs);
+
+ ZCRYPT_DBF_WARN("%s dev=%02x.%04x RY=0x%02x apfs=0x%x => rc=EINVAL\n",
+ __func__, card, queue,
+ ehdr->reply_code, apfs);
+ } else {
+ ZCRYPT_DBF_WARN("%s dev=%02x.%04x RY=0x%02x => rc=EINVAL\n",
+ __func__, card, queue,
+ ehdr->reply_code);
+ }
return -EINVAL;
case REP82_ERROR_MACHINE_FAILURE: /* 0x10 */
case REP82_ERROR_MESSAGE_TYPE: /* 0x20 */