External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-11-02 11:21:12 +00:00
Code Issues Packages Projects Releases Wiki Activity
27e47955a0
libvirt/src/util/pci.h

77 lines
3.0 KiB
C
Raw Normal View History

implements dettach, reattach and reset for PCI devices * configure.in po/POTFILES.in src/Makefile.am src/libvirt_private.syms src/pci.c src/pci.h: Add implementations of dettach, reattach and reset for PCI devices, patch by Mark McLoughlin Daniel
2009-03-02 16:18:11 +00:00
/*
* 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__
build: consistently indent preprocessor directives * global: patch created by running: for f in $(git ls-files '*.[ch]') ; do cppi $f > $f.t && mv $f.t $f done
2010-03-09 18:22:22 +00:00
# define __VIR_PCI_H__
implements dettach, reattach and reset for PCI devices * configure.in po/POTFILES.in src/Makefile.am src/libvirt_private.syms src/pci.c src/pci.h: Add implementations of dettach, reattach and reset for PCI devices, patch by Mark McLoughlin Daniel
2009-03-02 16:18:11 +00:00
build: consistently indent preprocessor directives * global: patch created by running: for f in $(git ls-files '*.[ch]') ; do cppi $f > $f.t && mv $f.t $f done
2010-03-09 18:22:22 +00:00
# include "internal.h"
implements dettach, reattach and reset for PCI devices * configure.in po/POTFILES.in src/Makefile.am src/libvirt_private.syms src/pci.c src/pci.h: Add implementations of dettach, reattach and reset for PCI devices, patch by Mark McLoughlin Daniel
2009-03-02 16:18:11 +00:00
typedef struct _pciDevice pciDevice;
Make pciDeviceList struct opaque * src/util/pci.c, src/util/pci.h: Make the pciDeviceList struct opaque to callers of the API. Add accessor methods for managing devices in the list * src/qemu/qemu_driver.c: Update to use APIs instead of directly accessing pciDeviceList fields
2009-10-27 17:30:16 +00:00
typedef struct _pciDeviceList pciDeviceList;
Simplify PCI hostdev prepare/re-attach using a pciDeviceList type The qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() functions are clutter with a bunch of calls to pciGetDevice() and pciFreeDevice() obscuring the basic logic. Add a pciDeviceList type and add a qemuGetPciHostDeviceList() function to build a list from a domain definition. Use this in prepare/re-attach fto simplify things and eliminate the multiple pciGetDevice calls. This is especially useful because in the next patch we need to iterate the hostdevs list a third time and we also need a list type for keeping track of active devices. * src/pci.[ch]: add pciDeviceList type and also a per-device 'managed' property * src/libvirt_private.syms: export the new functions * src/qemu_driver.c: add qemuGetPciHostDeviceList() and re-write qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() to use it
2009-08-17 14:05:23 +00:00
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
pciDevice *pciGetDevice (unsigned domain,
implements dettach, reattach and reset for PCI devices * configure.in po/POTFILES.in src/Makefile.am src/libvirt_private.syms src/pci.c src/pci.h: Add implementations of dettach, reattach and reset for PCI devices, patch by Mark McLoughlin Daniel
2009-03-02 16:18:11 +00:00
unsigned bus,
unsigned slot,
unsigned function);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
void pciFreeDevice (pciDevice *dev);
Check for active PCI devices when doing nodedevice operations. In the current libvirt PCI code, there is no checking whether a PCI device is in use by a guest when doing node device detach or reattach. This causes problems when a device is assigned to a guest, and the administrator starts issuing nodedevice commands. Make it so that we check the list of active devices when trying to detach/reattach, and only allow the operation if the device is not assigned to a guest. Signed-off-by: Chris Lalancette <clalance@redhat.com>
2010-06-14 21:12:35 +00:00
int pciDettachDevice (pciDevice *dev, pciDeviceList *activeDevs);
int pciReAttachDevice (pciDevice *dev, pciDeviceList *activeDevs);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
int pciResetDevice (pciDevice *dev,
pciResetDevice: use inactive devices to determine safe reset 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
2010-07-26 16:43:04 +00:00
pciDeviceList *activeDevs,
pciDeviceList *inactiveDevs);
Simplify PCI hostdev prepare/re-attach using a pciDeviceList type The qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() functions are clutter with a bunch of calls to pciGetDevice() and pciFreeDevice() obscuring the basic logic. Add a pciDeviceList type and add a qemuGetPciHostDeviceList() function to build a list from a domain definition. Use this in prepare/re-attach fto simplify things and eliminate the multiple pciGetDevice calls. This is especially useful because in the next patch we need to iterate the hostdevs list a third time and we also need a list type for keeping track of active devices. * src/pci.[ch]: add pciDeviceList type and also a per-device 'managed' property * src/libvirt_private.syms: export the new functions * src/qemu_driver.c: add qemuGetPciHostDeviceList() and re-write qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() to use it
2009-08-17 14:05:23 +00:00
void pciDeviceSetManaged(pciDevice *dev,
unsigned managed);
unsigned pciDeviceGetManaged(pciDevice *dev);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
pciDeviceList *pciDeviceListNew (void);
void pciDeviceListFree (pciDeviceList *list);
int pciDeviceListAdd (pciDeviceList *list,
Simplify PCI hostdev prepare/re-attach using a pciDeviceList type The qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() functions are clutter with a bunch of calls to pciGetDevice() and pciFreeDevice() obscuring the basic logic. Add a pciDeviceList type and add a qemuGetPciHostDeviceList() function to build a list from a domain definition. Use this in prepare/re-attach fto simplify things and eliminate the multiple pciGetDevice calls. This is especially useful because in the next patch we need to iterate the hostdevs list a third time and we also need a list type for keeping track of active devices. * src/pci.[ch]: add pciDeviceList type and also a per-device 'managed' property * src/libvirt_private.syms: export the new functions * src/qemu_driver.c: add qemuGetPciHostDeviceList() and re-write qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() to use it
2009-08-17 14:05:23 +00:00
pciDevice *dev);
Make pciDeviceList struct opaque * src/util/pci.c, src/util/pci.h: Make the pciDeviceList struct opaque to callers of the API. Add accessor methods for managing devices in the list * src/qemu/qemu_driver.c: Update to use APIs instead of directly accessing pciDeviceList fields
2009-10-27 17:30:16 +00:00
pciDevice * pciDeviceListGet (pciDeviceList *list,
int idx);
int pciDeviceListCount (pciDeviceList *list);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
pciDevice * pciDeviceListSteal (pciDeviceList *list,
Make pciDeviceList struct opaque * src/util/pci.c, src/util/pci.h: Make the pciDeviceList struct opaque to callers of the API. Add accessor methods for managing devices in the list * src/qemu/qemu_driver.c: Update to use APIs instead of directly accessing pciDeviceList fields
2009-10-27 17:30:16 +00:00
pciDevice *dev);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
void pciDeviceListDel (pciDeviceList *list,
Simplify PCI hostdev prepare/re-attach using a pciDeviceList type The qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() functions are clutter with a bunch of calls to pciGetDevice() and pciFreeDevice() obscuring the basic logic. Add a pciDeviceList type and add a qemuGetPciHostDeviceList() function to build a list from a domain definition. Use this in prepare/re-attach fto simplify things and eliminate the multiple pciGetDevice calls. This is especially useful because in the next patch we need to iterate the hostdevs list a third time and we also need a list type for keeping track of active devices. * src/pci.[ch]: add pciDeviceList type and also a per-device 'managed' property * src/libvirt_private.syms: export the new functions * src/qemu_driver.c: add qemuGetPciHostDeviceList() and re-write qemuPrepareHostDevices() and qemuDomainReAttachHostDevices() to use it
2009-08-17 14:05:23 +00:00
pciDevice *dev);
pciDevice * pciDeviceListFind (pciDeviceList *list,
pciDevice *dev);
Check active domain hostdevs before allowing PCI reset If a PCI device reset causes other devices to be reset, allow it so long as those other devices are note assigned to another active domain. Note, we need to take the driver lock qemudNodeDeviceReset() because the check function will iterate over the domain list. * src/qemu_conf.c: add qemuCheckPciHostDevice() to iterate over active domains checking whether the affected device is assigned * src/pci.[ch]: add pciDeviceEquals() helper
2009-08-14 07:31:11 +00:00
Add helper APIs for iterating over PCI device resource files * src/pci.h, src/pci.c: Helper for iterating over PCI device resource files * src/libvirt_private.syms: Export pciDeviceFileIterate
2009-08-14 13:20:40 +00:00
/*
* Callback that will be invoked once for each file
* associated with / used for PCI host device access.
*
* Should return 0 if successfully processed, or
* -1 to indicate error and abort iteration
*/
Remove virConnectPtr from USB/PCI device iterators All callers now pass a NULL virConnectPtr into the USB/PCi device iterator functions. Therefore the virConnectPtr arg can now be removed from these functions * src/util/hostusb.h, src/util/hostusb.c: Remove virConnectPtr from usbDeviceFileIterate * src/util/pci.c, src/util/pci.h: Remove virConnectPtr arg from pciDeviceFileIterate * src/qemu/qemu_security_dac.c, src/security/security_selinux.c: Update to drop redundant virConnectPtr arg
2010-02-10 09:55:39 +00:00
typedef int (*pciDeviceFileActor)(pciDevice *dev,
Add helper APIs for iterating over PCI device resource files * src/pci.h, src/pci.c: Helper for iterating over PCI device resource files * src/libvirt_private.syms: Export pciDeviceFileIterate
2009-08-14 13:20:40 +00:00
const char *path, void *opaque);
Remove virConnectPtr from USB/PCI device iterators All callers now pass a NULL virConnectPtr into the USB/PCi device iterator functions. Therefore the virConnectPtr arg can now be removed from these functions * src/util/hostusb.h, src/util/hostusb.c: Remove virConnectPtr from usbDeviceFileIterate * src/util/pci.c, src/util/pci.h: Remove virConnectPtr arg from pciDeviceFileIterate * src/qemu/qemu_security_dac.c, src/security/security_selinux.c: Update to drop redundant virConnectPtr arg
2010-02-10 09:55:39 +00:00
int pciDeviceFileIterate(pciDevice *dev,
Add helper APIs for iterating over PCI device resource files * src/pci.h, src/pci.c: Helper for iterating over PCI device resource files * src/libvirt_private.syms: Export pciDeviceFileIterate
2009-08-14 13:20:40 +00:00
pciDeviceFileActor actor,
void *opaque);
Remove conn parameter from PCI functions It was used for error reporting only.
2010-02-04 23:16:34 +00:00
int pciDeviceIsAssignable(pciDevice *dev,
Tests for ACS in PCIe switches New pciDeviceIsAssignable() function for checking whether a given PCI device can be assigned to a guest was added. Currently it only checks for ACS being enabled on all PCIe switches between root and the PCI device. In the future, it could be the right place to check whether a device is unbound or bound to a stub driver. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2009-12-22 17:21:15 +00:00
int strict_acs_check);
qemu: Fix race between device rebind and kvm cleanup Certain hypervisors (like qemu/kvm) map the PCI bar(s) on the host when doing device passthrough. This can lead to a race condition where the hypervisor is still cleaning up the device while libvirt is trying to re-attach it to the host device driver. To avoid this situation, we look through /proc/iomem, and if the hypervisor is still holding onto the bar (denoted by the string in the matcher variable), then we can wait around a bit for that to clear up. v2: Thanks to review by DV, make sure we wait the full timeout per-device Signed-off-by: Chris Lalancette <clalance@redhat.com>
2010-01-20 20:53:59 +00:00
int pciWaitForDeviceCleanup(pciDevice *dev, const char *matcher);
Tests for ACS in PCIe switches New pciDeviceIsAssignable() function for checking whether a given PCI device can be assigned to a guest was added. Currently it only checks for ACS being enabled on all PCIe switches between root and the PCI device. In the future, it could be the right place to check whether a device is unbound or bound to a stub driver. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2009-12-22 17:21:15 +00:00
implements dettach, reattach and reset for PCI devices * configure.in po/POTFILES.in src/Makefile.am src/libvirt_private.syms src/pci.c src/pci.h: Add implementations of dettach, reattach and reset for PCI devices, patch by Mark McLoughlin Daniel
2009-03-02 16:18:11 +00:00
#endif /* __VIR_PCI_H__ */
Reference in New Issue Copy Permalink