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46bcdb960d
When doing a PCI secondary bus reset, we must be sure that there are no active devices on the same bus segment. The active device tracking is designed to only track host devices that are active in use by guests. This ignores host devices that are actively in use by the host. So the current logic will reset host devices. Switch this logic around and allow sbus reset when we are assigning all devices behind a bridge to the same guest at guest startup or as a result of a single attach-device command. * src/util/pci.h: change signature of pciResetDevice to add an inactive devices list * src/qemu/qemu_driver.c src/xen/xen_driver.c: use (or not) the new functionality of pciResetDevice() depending on the place of use * src/util/pci.c: implement the interface and logic changes
77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
/*
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* Copyright (C) 2009 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors:
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* Mark McLoughlin <markmc@redhat.com>
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*/
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#ifndef __VIR_PCI_H__
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# define __VIR_PCI_H__
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# include "internal.h"
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typedef struct _pciDevice pciDevice;
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typedef struct _pciDeviceList pciDeviceList;
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pciDevice *pciGetDevice (unsigned domain,
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unsigned bus,
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unsigned slot,
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unsigned function);
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void pciFreeDevice (pciDevice *dev);
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int pciDettachDevice (pciDevice *dev, pciDeviceList *activeDevs);
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int pciReAttachDevice (pciDevice *dev, pciDeviceList *activeDevs);
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int pciResetDevice (pciDevice *dev,
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pciDeviceList *activeDevs,
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pciDeviceList *inactiveDevs);
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void pciDeviceSetManaged(pciDevice *dev,
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unsigned managed);
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unsigned pciDeviceGetManaged(pciDevice *dev);
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pciDeviceList *pciDeviceListNew (void);
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void pciDeviceListFree (pciDeviceList *list);
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int pciDeviceListAdd (pciDeviceList *list,
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pciDevice *dev);
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pciDevice * pciDeviceListGet (pciDeviceList *list,
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int idx);
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int pciDeviceListCount (pciDeviceList *list);
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pciDevice * pciDeviceListSteal (pciDeviceList *list,
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pciDevice *dev);
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void pciDeviceListDel (pciDeviceList *list,
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pciDevice *dev);
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pciDevice * pciDeviceListFind (pciDeviceList *list,
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pciDevice *dev);
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/*
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* Callback that will be invoked once for each file
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* associated with / used for PCI host device access.
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*
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* Should return 0 if successfully processed, or
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* -1 to indicate error and abort iteration
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*/
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typedef int (*pciDeviceFileActor)(pciDevice *dev,
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const char *path, void *opaque);
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int pciDeviceFileIterate(pciDevice *dev,
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pciDeviceFileActor actor,
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void *opaque);
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int pciDeviceIsAssignable(pciDevice *dev,
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int strict_acs_check);
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int pciWaitForDeviceCleanup(pciDevice *dev, const char *matcher);
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#endif /* __VIR_PCI_H__ */
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