mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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53b2bd5811
ACRN cleans up the IOMMU domain and other data structures that represents the state of device assigment to POST_LAUNCHED_VM. This is with the help of hypercalls from SOS DM. Under scenarios where DM execution can get terminated abruptly or due to bugs in DM, hypercalls responsible for cleaning up ACRN cannot happen. This leaves ACRN device representation/resource assignment in an incorrect state. This patch cleans up the IOMMU resource and other data structures upon shutdown of POST_LAUNCHED_VM. Tracked-On: #2700 Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
120 lines
4.8 KiB
C
120 lines
4.8 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* Copyright (c) 2018 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef VPCI_PRIV_H_
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#define VPCI_PRIV_H_
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#include <pci.h>
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static inline bool in_range(uint32_t value, uint32_t lower, uint32_t len)
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{
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return ((value >= lower) && (value < (lower + len)));
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}
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static inline uint8_t pci_vdev_read_cfg_u8(const struct pci_vdev *vdev, uint32_t offset)
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{
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return vdev->cfgdata.data_8[offset];
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}
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static inline uint16_t pci_vdev_read_cfg_u16(const struct pci_vdev *vdev, uint32_t offset)
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{
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return vdev->cfgdata.data_16[offset >> 1U];
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}
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static inline uint32_t pci_vdev_read_cfg_u32(const struct pci_vdev *vdev, uint32_t offset)
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{
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return vdev->cfgdata.data_32[offset >> 2U];
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}
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static inline void pci_vdev_write_cfg_u8(struct pci_vdev *vdev, uint32_t offset, uint8_t val)
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{
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vdev->cfgdata.data_8[offset] = val;
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}
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static inline void pci_vdev_write_cfg_u16(struct pci_vdev *vdev, uint32_t offset, uint16_t val)
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{
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vdev->cfgdata.data_16[offset >> 1U] = val;
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}
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static inline void pci_vdev_write_cfg_u32(struct pci_vdev *vdev, uint32_t offset, uint32_t val)
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{
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vdev->cfgdata.data_32[offset >> 2U] = val;
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}
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/**
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* @pre vdev != NULL
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*/
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static inline bool has_msix_cap(const struct pci_vdev *vdev)
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{
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return (vdev->msix.capoff != 0U);
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}
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void vdev_hostbridge_init(struct pci_vdev *vdev);
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int32_t vdev_hostbridge_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
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int32_t vdev_hostbridge_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
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void vdev_hostbridge_deinit(__unused const struct pci_vdev *vdev);
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int32_t vdev_pt_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
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int32_t vdev_pt_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
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void vmsi_init(struct pci_vdev *vdev);
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int32_t vmsi_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
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int32_t vmsi_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
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void vmsi_deinit(const struct pci_vdev *vdev);
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void vmsix_init(struct pci_vdev *vdev);
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void vdev_pt_remap_msix_table_bar(struct pci_vdev *vdev);
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int32_t vmsix_table_mmio_access_handler(struct io_request *io_req, void *handler_private_data);
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int32_t vmsix_cfgread(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t *val);
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int32_t vmsix_cfgwrite(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
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void vmsix_deinit(const struct pci_vdev *vdev);
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uint32_t pci_vdev_read_cfg(const struct pci_vdev *vdev, uint32_t offset, uint32_t bytes);
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void pci_vdev_write_cfg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes, uint32_t val);
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struct pci_vdev *pci_find_vdev_by_vbdf(const struct acrn_vpci *vpci, union pci_bdf vbdf);
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struct pci_vdev *pci_find_vdev_by_pbdf(const struct acrn_vpci *vpci, union pci_bdf pbdf);
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int32_t partition_mode_vpci_init(struct acrn_vm *vm);
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void partition_mode_cfgread(const struct acrn_vpci *vpci, union pci_bdf vbdf,
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uint32_t offset, uint32_t bytes, uint32_t *val);
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void partition_mode_cfgwrite(const struct acrn_vpci *vpci, union pci_bdf vbdf,
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uint32_t offset, uint32_t bytes, uint32_t val);
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void partition_mode_vpci_deinit(const struct acrn_vm *vm);
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int32_t sharing_mode_vpci_init(struct acrn_vm *vm);
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void sharing_mode_cfgread(struct acrn_vpci *vpci, union pci_bdf bdf,
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uint32_t offset, uint32_t bytes, uint32_t *val);
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void sharing_mode_cfgwrite(__unused struct acrn_vpci *vpci, union pci_bdf bdf,
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uint32_t offset, uint32_t bytes, uint32_t val);
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void sharing_mode_vpci_deinit(const struct acrn_vm *vm);
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void post_launched_vm_vpci_deinit(const struct acrn_vm *vm);
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#endif /* VPCI_PRIV_H_ */
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