From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Additions/solaris/Virtio/Virtio-solaris.c | 224 +++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 src/VBox/Additions/solaris/Virtio/Virtio-solaris.c (limited to 'src/VBox/Additions/solaris/Virtio/Virtio-solaris.c') 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 00000000..7406f68d --- /dev/null +++ b/src/VBox/Additions/solaris/Virtio/Virtio-solaris.c @@ -0,0 +1,224 @@ +/* $Id: Virtio-solaris.c $ */ +/** @file + * VirtualBox Guest Additions - Virtio Driver for Solaris. + */ + +/* + * Copyright (C) 2010-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "Virtio-solaris.h" + +#include +#include +#include + + +/** + * 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. + * @param Index Queue index. + * + * @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); +} + -- cgit v1.2.3