From: Harald Freudenberger Date: Wed, 5 Jun 2019 05:19:54 +0000 (+0200) Subject: s390/zcrypt: support special flagged EP11 cprbs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e1ab11012e1cc981b43219580e010a20ec8df7d8;p=linux.git s390/zcrypt: support special flagged EP11 cprbs Within an EP11 cprb there exists a byte field flags. Bit 0x20 of this field indicates a special cprb. A special cprb triggers special handling in the firmware below the OS layer. However, a special cprb also needs to have the S bit in GPR0 set when NQAP is called. This was not the case for EP11 cprbs and this patch now introduces the code to support this. Signed-off-by: Harald Freudenberger Signed-off-by: Heiko Carstens --- diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c index 0cbcc238ef983..12fe9deb265ea 100644 --- a/drivers/s390/crypto/zcrypt_msgtype6.c +++ b/drivers/s390/crypto/zcrypt_msgtype6.c @@ -567,6 +567,10 @@ static int xcrb_msg_to_type6_ep11cprb_msgx(struct ap_message *ap_msg, payload_hdr = (struct pld_hdr *)((&(msg->pld_lenfmt))+lfmt); *fcode = payload_hdr->func_val & 0xFFFF; + /* enable special processing based on the cprbs flags special bit */ + if (msg->cprbx.flags & 0x20) + ap_msg->special = 1; + return 0; }