[PATCH v3 1/2] s390/virtio: remove the old KVM virtio headers

[PATCH v3 1/2] s390/virtio: remove the old KVM virtio headers

[Michael S. Tsirkin]

commit 7fb2b2d51 ("s390/virtio: remove the old KVM virtio transport")
dropped the transport support. We don't need to keep the header around.

Cc: Thomas Huth <thuth@redhat.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Halil Pasic <pasic@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

No changes from v2

 arch/s390/include/uapi/asm/kvm_virtio.h | 65 ---------------------------------
 1 file changed, 65 deletions(-)
 delete mode 100644 arch/s390/include/uapi/asm/kvm_virtio.h

diff --git a/arch/s390/include/uapi/asm/kvm_virtio.h b/arch/s390/include/uapi/asm/kvm_virtio.h
deleted file mode 100644
index 7328367..0000000
--- a/arch/s390/include/uapi/asm/kvm_virtio.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * definition for virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#ifndef __KVM_S390_VIRTIO_H
-#define __KVM_S390_VIRTIO_H
-
-#include <linux/types.h>
-
-struct kvm_device_desc {
-	/* The device type: console, network, disk etc.  Type 0 terminates. */
-	__u8 type;
-	/* The number of virtqueues (first in config array) */
-	__u8 num_vq;
-	/*
-	 * The number of bytes of feature bits.  Multiply by 2: one for host
-	 * features and one for guest acknowledgements.
-	 */
-	__u8 feature_len;
-	/* The number of bytes of the config array after virtqueues. */
-	__u8 config_len;
-	/* A status byte, written by the Guest. */
-	__u8 status;
-	__u8 config[0];
-};
-
-/*
- * This is how we expect the device configuration field for a virtqueue
- * to be laid out in config space.
- */
-struct kvm_vqconfig {
-	/* The token returned with an interrupt. Set by the guest */
-	__u64 token;
-	/* The address of the virtio ring */
-	__u64 address;
-	/* The number of entries in the virtio_ring */
-	__u16 num;
-
-};
-
-#define KVM_S390_VIRTIO_NOTIFY		0
-#define KVM_S390_VIRTIO_RESET		1
-#define KVM_S390_VIRTIO_SET_STATUS	2
-
-/* The alignment to use between consumer and producer parts of vring.
- * This is pagesize for historical reasons. */
-#define KVM_S390_VIRTIO_RING_ALIGN	4096
-
-
-/* These values are supposed to be in ext_params on an interrupt */
-#define VIRTIO_PARAM_MASK		0xff
-#define VIRTIO_PARAM_VRING_INTERRUPT	0x0
-#define VIRTIO_PARAM_CONFIG_CHANGED	0x1
-#define VIRTIO_PARAM_DEV_ADD		0x2
-
-#endif
-- 
MST

[PATCH v3 2/2] s390/virtio: add BSD license to virtio-ccw

[Michael S. Tsirkin]

The original intent of the virtio header relicensing
from 2008 was to make sure anyone can implement compatible
devices/drivers. The virtio-ccw was omitted by mistake.

We have an ack from the only contributor as well as the
maintainer from IBM, so it's not too late to fix that.

Make it dual-licensed with GPLv2, as the whole kernel is GPL2.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

Changes from v2: fixed SPDX format as suggested by
Heiko Carstens.

 arch/s390/include/uapi/asm/virtio-ccw.h | 32 +++++++++++++++++++++++++++-----
 arch/s390/kernel/setup.c                |  1 -
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/arch/s390/include/uapi/asm/virtio-ccw.h b/arch/s390/include/uapi/asm/virtio-ccw.h
index 967aad3..6f1059d 100644
--- a/arch/s390/include/uapi/asm/virtio-ccw.h
+++ b/arch/s390/include/uapi/asm/virtio-ccw.h
@@ -1,14 +1,36 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Definitions for virtio-ccw devices.
  *
  * Copyright IBM Corp. 2013
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
  *  Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  */
 #ifndef __KVM_VIRTIO_CCW_H
 #define __KVM_VIRTIO_CCW_H
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 164a1e1..c022007 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -60,7 +60,6 @@
 #include <asm/ptrace.h>
 #include <asm/sections.h>
 #include <asm/ebcdic.h>
-#include <asm/kvm_virtio.h>
 #include <asm/diag.h>
 #include <asm/os_info.h>
 #include <asm/sclp.h>
-- 
MST