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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/hw/i386/xen/xen_pvdevice.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/hw/i386/xen/xen_pvdevice.c')
-rw-r--r--qemu/hw/i386/xen/xen_pvdevice.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/qemu/hw/i386/xen/xen_pvdevice.c b/qemu/hw/i386/xen/xen_pvdevice.c
new file mode 100644
index 000000000..c2189473b
--- /dev/null
+++ b/qemu/hw/i386/xen/xen_pvdevice.c
@@ -0,0 +1,135 @@
+/* Copyright (c) Citrix Systems Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms,
+ * with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the
+ * following disclaimer.
+ * * 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.
+ *
+ * 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 THE COPYRIGHT HOLDER 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.
+ */
+
+#include "hw/hw.h"
+#include "hw/pci/pci.h"
+#include "trace.h"
+
+#define TYPE_XEN_PV_DEVICE "xen-pvdevice"
+
+#define XEN_PV_DEVICE(obj) \
+ OBJECT_CHECK(XenPVDevice, (obj), TYPE_XEN_PV_DEVICE)
+
+typedef struct XenPVDevice {
+ /*< private >*/
+ PCIDevice parent_obj;
+ /*< public >*/
+ uint16_t vendor_id;
+ uint16_t device_id;
+ uint8_t revision;
+ uint32_t size;
+ MemoryRegion mmio;
+} XenPVDevice;
+
+static uint64_t xen_pv_mmio_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ trace_xen_pv_mmio_read(addr);
+
+ return ~(uint64_t)0;
+}
+
+static void xen_pv_mmio_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ trace_xen_pv_mmio_write(addr);
+}
+
+static const MemoryRegionOps xen_pv_mmio_ops = {
+ .read = &xen_pv_mmio_read,
+ .write = &xen_pv_mmio_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static int xen_pv_init(PCIDevice *pci_dev)
+{
+ XenPVDevice *d = XEN_PV_DEVICE(pci_dev);
+ uint8_t *pci_conf;
+
+ /* device-id property must always be supplied */
+ if (d->device_id == 0xffff)
+ return -1;
+
+ pci_conf = pci_dev->config;
+
+ pci_set_word(pci_conf + PCI_VENDOR_ID, d->vendor_id);
+ pci_set_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID, d->vendor_id);
+ pci_set_word(pci_conf + PCI_DEVICE_ID, d->device_id);
+ pci_set_word(pci_conf + PCI_SUBSYSTEM_ID, d->device_id);
+ pci_set_byte(pci_conf + PCI_REVISION_ID, d->revision);
+
+ pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_MEMORY);
+
+ pci_config_set_prog_interface(pci_conf, 0);
+
+ pci_conf[PCI_INTERRUPT_PIN] = 1;
+
+ memory_region_init_io(&d->mmio, NULL, &xen_pv_mmio_ops, d,
+ "mmio", d->size);
+
+ pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
+ &d->mmio);
+
+ return 0;
+}
+
+static Property xen_pv_props[] = {
+ DEFINE_PROP_UINT16("vendor-id", XenPVDevice, vendor_id, PCI_VENDOR_ID_XEN),
+ DEFINE_PROP_UINT16("device-id", XenPVDevice, device_id, 0xffff),
+ DEFINE_PROP_UINT8("revision", XenPVDevice, revision, 0x01),
+ DEFINE_PROP_UINT32("size", XenPVDevice, size, 0x400000),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void xen_pv_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->init = xen_pv_init;
+ k->class_id = PCI_CLASS_SYSTEM_OTHER;
+ dc->desc = "Xen PV Device";
+ dc->props = xen_pv_props;
+}
+
+static const TypeInfo xen_pv_type_info = {
+ .name = TYPE_XEN_PV_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(XenPVDevice),
+ .class_init = xen_pv_class_init,
+};
+
+static void xen_pv_register_types(void)
+{
+ type_register_static(&xen_pv_type_info);
+}
+
+type_init(xen_pv_register_types)