Re: [kvm-unit-tests PATCH v9 09/12] s390x: Library resources for CSS tests

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On 2020-06-24 14:26, Thomas Huth wrote:
On 15/06/2020 11.31, Pierre Morel wrote:
Provide some definitions and library routines that can be used by
tests targeting the channel subsystem.

Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
---
  lib/s390x/css.h      | 256 +++++++++++++++++++++++++++++++++++++++++++
  lib/s390x/css_dump.c | 153 ++++++++++++++++++++++++++
  s390x/Makefile       |   1 +
  3 files changed, 410 insertions(+)
  create mode 100644 lib/s390x/css.h
  create mode 100644 lib/s390x/css_dump.c
[...]
diff --git a/lib/s390x/css_dump.c b/lib/s390x/css_dump.c
new file mode 100644
index 0000000..0c2b64e
--- /dev/null
+++ b/lib/s390x/css_dump.c
@@ -0,0 +1,153 @@
+/*
+ * Channel subsystem structures dumping
+ *
+ * Copyright (c) 2020 IBM Corp.
+ *
+ * Authors:
+ *  Pierre Morel <pmorel@xxxxxxxxxxxxx>
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2.
+ *
+ * Description:
+ * Provides the dumping functions for various structures used by subchannels: + * - ORB  : Operation request block, describes the I/O operation and points to
+ *          a CCW chain
+ * - CCW  : Channel Command Word, describes the command, data and flow control + * - IRB  : Interuption response Block, describes the result of an operation;
+ *          holds a SCSW and model-dependent data.
+ * - SCHIB: SubCHannel Information Block composed of:
+ *   - SCSW: SubChannel Status Word, status of the channel.
+ *   - PMCW: Path Management Control Word
+ * You need the QEMU ccw-pong device in QEMU to answer the I/O transfers.
+ */
+
+#include <libcflat.h>
+#include <unistd.h>

Please don't use unistd.h in kvm-unit-tests - this header is not usable in cross-compilation environments:

  https://travis-ci.com/github/huth/kvm-unit-tests/jobs/353089278#L536

Thanks,
  Thomas


Yes, no problem, it does not belong here anyway.

Regards,
Pierre


--
Pierre Morel
IBM Lab Boeblingen



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