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[Qemu-devel] [PATCH v2 2/4] s390x/css: use ccw data stream
From: |
Halil Pasic |
Subject: |
[Qemu-devel] [PATCH v2 2/4] s390x/css: use ccw data stream |
Date: |
Wed, 13 Sep 2017 13:50:27 +0200 |
Replace direct access which implicitly assumes no IDA
or MIDA with the new ccw data stream interface which should
cope with these transparently in the future.
Signed-off-by: Halil Pasic <address@hidden>
---
hw/s390x/css.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index e8d2016563..6b0cd8861b 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -890,6 +890,7 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr,
}
/* Look at the command. */
+ ccw_dstream_init(&sch->cds, &ccw, &(sch->orb));
switch (ccw.cmd_code) {
case CCW_CMD_NOOP:
/* Nothing to do. */
@@ -903,8 +904,8 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr,
}
}
len = MIN(ccw.count, sizeof(sch->sense_data));
- cpu_physical_memory_write(ccw.cda, sch->sense_data, len);
- sch->curr_status.scsw.count = ccw.count - len;
+ ccw_dstream_write_buf(&sch->cds, sch->sense_data, len);
+ sch->curr_status.scsw.count = ccw_dstream_residual_count(&sch->cds);
memset(sch->sense_data, 0, sizeof(sch->sense_data));
ret = 0;
break;
@@ -930,8 +931,8 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr,
} else {
sense_id.reserved = 0;
}
- cpu_physical_memory_write(ccw.cda, &sense_id, len);
- sch->curr_status.scsw.count = ccw.count - len;
+ ccw_dstream_write_buf(&sch->cds, &sense_id, len);
+ sch->curr_status.scsw.count = ccw_dstream_residual_count(&sch->cds);
ret = 0;
break;
}
--
2.13.5
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, (continued)
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Dong Jia Shi, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Cornelia Huck, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Halil Pasic, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Cornelia Huck, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Halil Pasic, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Cornelia Huck, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Halil Pasic, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Cornelia Huck, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Pierre Morel, 2017/09/19
- Re: [Qemu-devel] [PATCH v2 4/4] s390x/css: support ccw IDA, Halil Pasic, 2017/09/19
[Qemu-devel] [PATCH v2 2/4] s390x/css: use ccw data stream,
Halil Pasic <=
[Qemu-devel] [PATCH v2 1/4] s390x/css: introduce css data stream, Halil Pasic, 2017/09/13