libvirt/src/pci.h
Mark McLoughlin e8ad339312 Maintain a list of active PCI hostdevs and use it in pciResetDevice()
As we start/shutdown guests, or hotplug/hot-unplug devices, we can add
or delete devices as appropriate from a list of active devices.

Then, in pciReset(), we can use this to determine whether its safe to
reset a device as a side effect of resetting another device.

* src/qemu_conf.h: add activePciHostdevs to qemud_driver

* src/qemu_driver.c: maintain the activePciHostdevs list, and pass it
  to pciResetDevice()

* src/pci.[ch]: pass the activeDevs list to pciResetDevice() and use
  it to determine whether a Secondary Bus Reset is safe
2009-08-18 09:41:57 +01:00

66 lines
2.5 KiB
C

/*
* Copyright (C) 2009 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* Mark McLoughlin <markmc@redhat.com>
*/
#ifndef __VIR_PCI_H__
#define __VIR_PCI_H__
#include <config.h>
#include "internal.h"
typedef struct _pciDevice pciDevice;
typedef struct {
unsigned count;
pciDevice **devs;
} pciDeviceList;
pciDevice *pciGetDevice (virConnectPtr conn,
unsigned domain,
unsigned bus,
unsigned slot,
unsigned function);
void pciFreeDevice (virConnectPtr conn,
pciDevice *dev);
int pciDettachDevice (virConnectPtr conn,
pciDevice *dev);
int pciReAttachDevice (virConnectPtr conn,
pciDevice *dev);
int pciResetDevice (virConnectPtr conn,
pciDevice *dev,
pciDeviceList *activeDevs);
void pciDeviceSetManaged(pciDevice *dev,
unsigned managed);
unsigned pciDeviceGetManaged(pciDevice *dev);
pciDeviceList *pciDeviceListNew (virConnectPtr conn);
void pciDeviceListFree (virConnectPtr conn,
pciDeviceList *list);
int pciDeviceListAdd (virConnectPtr conn,
pciDeviceList *list,
pciDevice *dev);
void pciDeviceListDel (virConnectPtr conn,
pciDeviceList *list,
pciDevice *dev);
pciDevice * pciDeviceListFind (pciDeviceList *list,
pciDevice *dev);
#endif /* __VIR_PCI_H__ */