Additions/Solaris/Virtio: export to OSE

git-svn-id: https://www.virtualbox.org/svn/vbox/trunk@34143 cfe28804-0f27-0410-a406-dd0f0b0b656f

1 files changed, 206 insertions, 0 deletions

diff --git a/src/VBox/Additions/solaris/Virtio/Virtio-solaris.c b/src/VBox/Additions/solaris/Virtio/Virtio-solaris.c
new file mode 100644
index 00000000000..3c80465365f
--- /dev/null
+++ b/src/VBox/Additions/solaris/Virtio/Virtio-solaris.c
@@ -0,0 +1,206 @@
+/* $Id$ */
+/** @file
+ * VirtualBox Guest Additions: Virtio Driver for Solaris.
+ */
+
+/*
+ * Copyright (C) 2010 Oracle Corporation
+ *
+ * Oracle Corporation confidential
+ * All rights reserved
+ */
+
+/*******************************************************************************
+*   Header Files                                                               *
+*******************************************************************************/
+#include "Virtio-solaris.h"
+
+#include <iprt/assert.h>
+#include <iprt/mem.h>
+#include <VBox/log.h>
+
+#if defined(DEBUG_ramshankar)
+# undef LogFlowFunc
+# define LogFlowFunc        LogRel
+# undef Log
+# define Log                LogRel
+# undef LogFlow
+# define LogFlow            LogRel
+#endif
+
+/**
+ * Virtio Attach routine that should be called from all Virtio drivers' attach
+ * routines.
+ *
+ * @param pDip              The module structure instance.
+ * @param enmCmd            Operation type (attach/resume).
+ * @param pDeviceOps        Pointer to device ops structure.
+ * @param pHyperOps         Pointer to hypervisor ops structure.
+ *
+ * @return Solaris DDI error code. DDI_SUCCESS or DDI_FAILURE.
+ */
+int VirtioAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd, PVIRTIODEVICEOPS pDeviceOps, PVIRTIOHYPEROPS pHyperOps)
+{
+    LogFlowFunc((VIRTIOLOGNAME ":VirtioAttach: pDip=%p enmCmd=%d pDeviceOps=%p pHyperOps=%p\n", pDip, enmCmd, pDeviceOps, pHyperOps));
+
+    AssertReturn(pDip, DDI_EINVAL);
+    AssertReturn(pDeviceOps, DDI_EINVAL);
+    AssertReturn(pHyperOps, DDI_EINVAL);
+
+    if (enmCmd != DDI_ATTACH)
+    {
+        LogRel((VIRTIOLOGNAME ":VirtioAttach: Invalid enmCmd=%#x expected DDI_ATTACH\n", enmCmd));
+        return DDI_FAILURE;
+    }
+
+    int rc = DDI_FAILURE;
+    PVIRTIODEVICE pDevice = RTMemAllocZ(sizeof(VIRTIODEVICE));
+    if (RT_LIKELY(pDevice))
+    {
+        pDevice->pDip = pDip;
+        pDevice->pDeviceOps = pDeviceOps;
+        pDevice->pHyperOps = pHyperOps;
+
+        pDevice->pvDevice = pDevice->pDeviceOps->pfnAlloc(pDevice);
+        if (RT_LIKELY(pDevice->pvDevice))
+        {
+            pDevice->pvHyper = pDevice->pHyperOps->pfnAlloc(pDevice);
+            if (RT_LIKELY(pDevice->pvHyper))
+            {
+                /*
+                 * Attach hypervisor interface and obtain features supported by host.
+                 */
+                rc = pDevice->pHyperOps->pfnAttach(pDevice);
+                if (rc == DDI_SUCCESS)
+                {
+                    pDevice->fHostFeatures = pDevice->pHyperOps->pfnGetFeatures(pDevice);
+                    LogFlow((VIRTIOLOGNAME ":VirtioAttach: Host features=%#x\n", pDevice->fHostFeatures));
+
+                    /*
+                     * Attach the device type interface.
+                     */
+                    rc = pDevice->pDeviceOps->pfnAttach(pDevice);
+                    if (rc == DDI_SUCCESS)
+                    {
+                        ddi_set_driver_private(pDip, pDevice);
+                        return DDI_SUCCESS;
+                    }
+                    else
+                        LogRel((VIRTIOLOGNAME ":VirtioAttach: DeviceOps pfnAttach failed. rc=%d\n", rc));
+
+                    pDevice->pHyperOps->pfnDetach(pDevice);
+                }
+                else
+                    LogRel((VIRTIOLOGNAME ":VirtioAttach: HyperOps pfnAttach failed. rc=%d\n", rc));
+
+                pDevice->pHyperOps->pfnFree(pDevice);
+            }
+            else
+                LogRel((VIRTIOLOGNAME ":VirtioAttach: HyperOps->pfnAlloc failed!\n"));
+
+            pDevice->pDeviceOps->pfnFree(pDevice);
+        }
+        else
+            LogRel((VIRTIOLOGNAME ":VirtioAttach: DeviceOps->pfnAlloc failed!\n"));
+
+        RTMemFree(pDevice);
+    }
+    else
+        LogRel((VIRTIOLOGNAME ":VirtioAttach: failed to alloc %u bytes for device structure.\n", sizeof(VIRTIODEVICE)));
+
+    return DDI_FAILURE;
+}
+
+
+/**
+ * Virtio Detach routine that should be called from all Virtio drivers' detach
+ * routines.
+ *
+ * @param pDip              The module structure instance.
+ * @param enmCmd            Operation type (detach/suspend).
+ *
+ * @return Solaris DDI error code. DDI_SUCCESS or DDI_FAILURE.
+ */
+int VirtioDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd)
+{
+    LogFlowFunc((VIRTIOLOGNAME ":VirtioDetach pDip=%p enmCmd=%d\n", pDip, enmCmd));
+
+    PVIRTIODEVICE pDevice = ddi_get_driver_private(pDip);
+    if (RT_UNLIKELY(!pDevice))
+        return DDI_FAILURE;
+
+    if (enmCmd != DDI_DETACH)
+    {
+        LogRel((VIRTIOLOGNAME ":VirtioDetach: Invalid enmCmd=%#x expected DDI_DETACH.\n", enmCmd));
+        return DDI_FAILURE;
+    }
+
+    int rc = pDevice->pDeviceOps->pfnDetach(pDevice);
+    if (rc == DDI_SUCCESS)
+    {
+        pDevice->pHyperOps->pfnDetach(pDevice);
+        pDevice->pDeviceOps->pfnFree(pDevice);
+        pDevice->pvDevice = NULL;
+        pDevice->pHyperOps->pfnFree(pDevice);
+        pDevice->pvHyper = NULL;
+
+        ddi_set_driver_private(pDevice->pDip, NULL);
+        RTMemFree(pDevice);
+        return DDI_SUCCESS;
+    }
+    else
+        LogRel((VIRTIOLOGNAME ":VirtioDetach: DeviceOps pfnDetach failed. rc=%d\n", rc));
+
+    return DDI_FAILURE;
+}
+
+
+/**
+ * Allocates a Virtio Queue object and assigns it an index.
+ *
+ * @param pDevice           Pointer to the Virtio device instance.
+ *
+ * @return A pointer to a Virtio Queue instance.
+ */
+PVIRTIOQUEUE VirtioGetQueue(PVIRTIODEVICE pDevice, uint16_t Index)
+{
+    PVIRTIOQUEUE pQueue = RTMemAllocZ(sizeof(VIRTIOQUEUE));
+    if (RT_UNLIKELY(!pQueue))
+    {
+        LogRel((VIRTIOLOGNAME ":VirtioGetQueue: failed to alloc memory for %u bytes.\n", sizeof(VIRTIOQUEUE)));
+        return NULL;
+    }
+
+    pQueue->QueueIndex = Index;
+    pQueue->pvData     = pDevice->pHyperOps->pfnGetQueue(pDevice, pQueue);
+    if (RT_UNLIKELY(!pQueue->pvData))
+    {
+        LogRel((VIRTIOLOGNAME ":VirtioGetQueue: HyperOps GetQueue failed!\n"));
+        RTMemFree(pQueue);
+        return NULL;
+    }
+
+    AssertReturn(pQueue->pQueue, NULL);
+    AssertReturn(pQueue->Ring.cDesc > 0, NULL);
+
+    /* @todo enable interrupt. */
+
+    return pQueue;
+}
+
+
+/**
+ * Puts a queue and destroys the instance.
+ *
+ * @param pDevice           Pointer to the Virtio device instance.
+ * @param pQueue            Pointer to the Virtio queue.
+ */
+void VirtioPutQueue(PVIRTIODEVICE pDevice, PVIRTIOQUEUE pQueue)
+{
+    AssertReturnVoid(pDevice);
+    AssertReturnVoid(pQueue);
+
+    pDevice->pHyperOps->pfnPutQueue(pDevice, pQueue);
+    RTMemFree(pQueue);
+}
+