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https://github.com/projectacrn/acrn-hypervisor.git
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483b7b1280
fix bug: if PTM-CAP device, like TSN in multi-hostbridge could cause acrn-dm crash. original PTM PCI code has not handled multi-hostbridge case, and just handled hostbridge (00:00.0) case. this patch calls PCI access API to handle PTM-CAP device/bridge (root port) structure, to avoid scan PCI hierarchical. Tracked-On: #7045 Acked-by: Wang, Yu1 <yu1.wang@intel.com> Reviewed-by: Fei Li <fei1.li@intel.com> Signed-off-by: Minggui Cao <minggui.cao@intel.com>
21 lines
443 B
C
21 lines
443 B
C
/*
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* Copyright (C) 2021 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#ifndef __PCI_UTIL_H
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#define __PCI_UTIL_H
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#include <stdbool.h>
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#include "pciaccess.h"
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int pci_find_cap(struct pci_device *pdev, const int cap_id);
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int pci_find_ext_cap(struct pci_device *pdev, int cap_id);
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int pci_get_pcie_type(struct pci_device *dev);
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bool is_root_port(struct pci_device *pdev);
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bool is_mfdev(struct pci_device *pdev);
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#endif
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