From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39086) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YOCUB-00076n-Cv for qemu-devel@nongnu.org; Wed, 18 Feb 2015 16:48:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YOCU6-0004QI-IV for qemu-devel@nongnu.org; Wed, 18 Feb 2015 16:48:47 -0500 Received: from mail.kernel.org ([198.145.29.136]:51823) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YOCU6-0004QC-9z for qemu-devel@nongnu.org; Wed, 18 Feb 2015 16:48:42 -0500 Date: Wed, 18 Feb 2015 22:48:36 +0100 From: "Michael S. Tsirkin" Message-ID: <1424295164-4774-47-git-send-email-mst@redhat.com> References: <1424295164-4774-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1424295164-4774-1-git-send-email-mst@redhat.com> Subject: [Qemu-devel] [PULL 46/96] standard-headers: add s390 virtio headers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , dgilbert@redhat.com, Juan Quintela Signed-off-by: Michael S. Tsirkin --- include/standard-headers/asm-s390/kvm_virtio.h | 64 ++++++++++++++++++++++++++ include/standard-headers/asm-s390/virtio-ccw.h | 21 +++++++++ 2 files changed, 85 insertions(+) create mode 100644 include/standard-headers/asm-s390/kvm_virtio.h create mode 100644 include/standard-headers/asm-s390/virtio-ccw.h diff --git a/include/standard-headers/asm-s390/kvm_virtio.h b/include/standard-headers/asm-s390/kvm_virtio.h new file mode 100644 index 0000000..daad324 --- /dev/null +++ b/include/standard-headers/asm-s390/kvm_virtio.h @@ -0,0 +1,64 @@ +/* + * 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 + */ + +#ifndef __KVM_S390_VIRTIO_H +#define __KVM_S390_VIRTIO_H + +#include "standard-headers/linux/types.h" + +struct kvm_device_desc { + /* The device type: console, network, disk etc. Type 0 terminates. */ + uint8_t type; + /* The number of virtqueues (first in config array) */ + uint8_t num_vq; + /* + * The number of bytes of feature bits. Multiply by 2: one for host + * features and one for guest acknowledgements. + */ + uint8_t feature_len; + /* The number of bytes of the config array after virtqueues. */ + uint8_t config_len; + /* A status byte, written by the Guest. */ + uint8_t status; + uint8_t 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 */ + uint64_t token; + /* The address of the virtio ring */ + uint64_t address; + /* The number of entries in the virtio_ring */ + uint16_t 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 diff --git a/include/standard-headers/asm-s390/virtio-ccw.h b/include/standard-headers/asm-s390/virtio-ccw.h new file mode 100644 index 0000000..a9a4ebf --- /dev/null +++ b/include/standard-headers/asm-s390/virtio-ccw.h @@ -0,0 +1,21 @@ +/* + * 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 + */ +#ifndef __KVM_VIRTIO_CCW_H +#define __KVM_VIRTIO_CCW_H + +/* Alignment of vring buffers. */ +#define KVM_VIRTIO_CCW_RING_ALIGN 4096 + +/* Subcode for diagnose 500 (virtio hypercall). */ +#define KVM_S390_VIRTIO_CCW_NOTIFY 3 + +#endif -- MST