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libvirt/src/qemu/qemu_hostdev.h

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Move QEMU hostdev helper code out of the QEMU driver The QEMU driver file is far too large. Move all the hostdev helper code out into a separate file. No functional change. * src/qemu/qemu_hostdev.c, src/qemu/qemu_hostdev.h, src/Makefile.am: Add hostdev helper file * src/qemu/qemu_driver.c: Delete hostdev code
2010-12-16 16:10:54 +00:00
/*
* qemu_hostdev.h: QEMU hostdev management
*
qemu: default to vfio for nodedev-detach This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1035188 Commit f094aaac48a6 changed the PCI device assignment in qemu domains to default to using VFIO rather than legacy KVM device assignment (when VFIO is available). It didn't change which driver was used by default for virNodeDeviceDetachFlags(), though, so that API (and the virsh nodedev-detach command) was still binding to the pci-stub driver, used by legacy KVM assignment, by default. This patch publicizes (only within the qemu module, though, so no additions to the symbol exports are needed) the functions that check for presence of KVM and VFIO device assignment, then uses those functions to decide what to do when no driver is specified for virNodeDeviceDetachFlags(); if the vfio driver is loaded, the device will be bound to vfio-pci, or if legacy KVM assignment is supported on this system, the device will be bound to pci-stub; if neither method is available, the detach will fail.
2013-11-29 11:19:26 +00:00
* Copyright (C) 2006-2007, 2009-2013 Red Hat, Inc.
Move QEMU hostdev helper code out of the QEMU driver The QEMU driver file is far too large. Move all the hostdev helper code out into a separate file. No functional change. * src/qemu/qemu_hostdev.c, src/qemu/qemu_hostdev.h, src/Makefile.am: Add hostdev helper file * src/qemu/qemu_driver.c: Delete hostdev code
2010-12-16 16:10:54 +00:00
* Copyright (C) 2006 Daniel P. Berrange
*
* 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
maint: fix up copyright notice inconsistencies https://www.gnu.org/licenses/gpl-howto.html recommends that the 'If not, see <url>.' phrase be a separate sentence. * tests/securityselinuxhelper.c: Remove doubled line. * tests/securityselinuxtest.c: Likewise. * globally: s/; If/. If/
2012-09-20 22:30:55 +00:00
* License along with this library. If not, see
Desert the FSF address in copyright Per the FSF address could be changed from time to time, and GNU recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html) You should have received a copy of the GNU General Public License along with Foobar. If not, see <http://www.gnu.org/licenses/>. This patch removes the explicit FSF address, and uses above instead (of course, with inserting 'Lesser' before 'General'). Except a bunch of files for security driver, all others are changed automatically, the copyright for securify files are not complete, that's why to do it manually: src/security/security_selinux.h src/security/security_driver.h src/security/security_selinux.c src/security/security_apparmor.h src/security/security_apparmor.c src/security/security_driver.c
2012-07-21 10:06:23 +00:00
* <http://www.gnu.org/licenses/>.
Move QEMU hostdev helper code out of the QEMU driver The QEMU driver file is far too large. Move all the hostdev helper code out into a separate file. No functional change. * src/qemu/qemu_hostdev.c, src/qemu/qemu_hostdev.h, src/Makefile.am: Add hostdev helper file * src/qemu/qemu_driver.c: Delete hostdev code
2010-12-16 16:10:54 +00:00
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __QEMU_HOSTDEV_H__
# define __QEMU_HOSTDEV_H__
# include "qemu_conf.h"
# include "domain_conf.h"
qemu: default to vfio for nodedev-detach This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1035188 Commit f094aaac48a6 changed the PCI device assignment in qemu domains to default to using VFIO rather than legacy KVM device assignment (when VFIO is available). It didn't change which driver was used by default for virNodeDeviceDetachFlags(), though, so that API (and the virsh nodedev-detach command) was still binding to the pci-stub driver, used by legacy KVM assignment, by default. This patch publicizes (only within the qemu module, though, so no additions to the symbol exports are needed) the functions that check for presence of KVM and VFIO device assignment, then uses those functions to decide what to do when no driver is specified for virNodeDeviceDetachFlags(); if the vfio driver is loaded, the device will be bound to vfio-pci, or if legacy KVM assignment is supported on this system, the device will be bound to pci-stub; if neither method is available, the detach will fail.
2013-11-29 11:19:26 +00:00
bool qemuHostdevHostSupportsPassthroughLegacy(void);
bool qemuHostdevHostSupportsPassthroughVFIO(void);
qemu: hostdev: Unify naming for qemuHostdevPrepare*Devices() Adopt the same names used for virHostdevPrepare*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:10:16 +00:00
hostdev: Maintain a driver list of active mediated devices Keep track of the assigned mediated devices the same way we do it for the rest of hostdevs. Methods like 'Prepare', 'Update', and 'ReAttach' are introduced by this patch. Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-02-03 13:04:59 +00:00
int qemuHostdevUpdateActiveMediatedDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
qemu: hostdev: Unify naming for qemuHostdevUpdateActive*Devices() Adopt the same names used for virHostdevUpdateActive*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:26:30 +00:00
int qemuHostdevUpdateActivePCIDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
int qemuHostdevUpdateActiveUSBDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
int qemuHostdevUpdateActiveSCSIDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
qemu: hostdev: Introduce qemuHostdevUpdateActiveDomainDevices() This calls the PCI-, USB- and SCSI-specific functions just like qemuHostdev{Prepare,ReAttach}DomainDevices() already do, and was the missing piece for the qemuHostdev API to nicely mirror the virHostdev API. Update qemuProcessReconnect() to use the new function.
2015-10-26 11:09:33 +00:00
int qemuHostdevUpdateActiveDomainDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
qemu: hostdev: Unify naming for qemuHostdevUpdateActive*Devices() Adopt the same names used for virHostdevUpdateActive*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:26:30 +00:00
qemu: hostdev: Unify naming for qemuHostdevPrepare*Devices() Adopt the same names used for virHostdevPrepare*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:10:16 +00:00
int qemuHostdevPreparePCIDevices(virQEMUDriverPtr driver,
qemu: Do not reattach PCI device used by other domain when shutdown When failing on starting a domain, it tries to reattach all the PCI devices defined in the domain conf, regardless of whether the devices are still used by other domain. This will cause the devices to be deleted from the list qemu_driver->activePciHostdevs, thus the devices will be thought as usable even if it's not true. And following commands nodedev-{reattach,reset} will be successful. How to reproduce: 1) Define two domains with same PCI device defined in the confs. 2) # virsh start domain1 3) # virsh start domain2 4) # virsh nodedev-reattach $pci_device You will see the device will be reattached to host successfully. As pciDeviceReattach just check if the device is still used by other domain via checking if the device is in list driver->activePciHostdevs, however, the device is deleted from the list by step 2). This patch is to prohibit the bug by: 1) Prohibit a domain starting or device attachment right at preparation period (qemuPrepareHostdevPCIDevices) if the device is in list driver->activePciHostdevs, which means it's used by other domain. 2) Introduces a new field for struct _pciDevice, (const char *used_by), it will be set as the domain name at preparation period, (qemuPrepareHostdevPCIDevices). Thus we can prohibit deleting the device from driver->activePciHostdevs if it's still used by other domain when stopping the domain process. * src/pci.h (define two internal functions, pciDeviceSetUsedBy and pciDevceGetUsedBy) * src/pci.c (new field "const char *used_by" for struct _pciDevice, implementations for the two new functions) * src/libvirt_private.syms (Add the two new internal functions) * src/qemu_hostdev.h (Modify the definition of functions qemuPrepareHostdevPCIDevices, and qemuDomainReAttachHostdevDevices) * src/qemu_hostdev.c (Prohibit preparation and don't delete the device from activePciHostdevs list if it's still used by other domain) * src/qemu_hotplug.c (Update function usage, as the definitions are changed) Signed-off-by: Eric Blake <eblake@redhat.com>
2011-10-13 04:05:04 +00:00
const char *name,
qemu: install port profile and mac address on netdev hostdevs These changes are applied only if the hostdev has a parent net device (i.e. if it was defined as "<interface type='hostdev'>" rather than just "<hostdev>"). If the parent netdevice has virtual port information, the original virtualport associate functions are called (these set and restore both mac and port profile on an interface). Otherwise, only mac address is set on the device. Note that This is only supported for SR-IOV Virtual Functions (not for standard PCI or USB netdevs), and virtualport association is only supported for 802.1Qbh. For all other types of cards and types of virtualport, a "Config Unsupported" error is returned and the operation fails. Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
2012-03-06 01:12:44 +00:00
const unsigned char *uuid,
Move QEMU hostdev helper code out of the QEMU driver The QEMU driver file is far too large. Move all the hostdev helper code out into a separate file. No functional change. * src/qemu/qemu_hostdev.c, src/qemu/qemu_hostdev.h, src/Makefile.am: Add hostdev helper file * src/qemu/qemu_driver.c: Delete hostdev code
2010-12-16 16:10:54 +00:00
virDomainHostdevDefPtr *hostdevs,
qemu: Prefer VFIO for PCI device passthrough Prefer using VFIO (if available) to the legacy KVM device passthrough. With this patch a PCI passthrough device without the driver configured will be started with VFIO if it's available on the host. If not legacy KVM passthrough is checked and error is reported if it's not available.
2013-09-20 08:39:51 +00:00
int nhostdevs,
qemu_hostdev: move cfg->relaxedACS as a flag For extracting hostdev codes from qemu_hostdev.c to common library, change qemu specific cfg->relaxedACS handling to be a flag, and pass it to hostdev functions.
2014-03-05 10:56:26 +00:00
virQEMUCapsPtr qemuCaps,
unsigned int flags);
qemu: hostdev: Unify naming for qemuHostdevPrepare*Devices() Adopt the same names used for virHostdevPrepare*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:10:16 +00:00
int qemuHostdevPrepareUSBDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs,
unsigned int flags);
int qemuHostdevPrepareSCSIDevices(virQEMUDriverPtr driver,
qemu: Introduce activeScsiHostdevs list for scsi host devices Although virtio-scsi supports SCSI PR (Persistent Reservations), the device on host may do not support it. To avoid losing data, Just like PCI and USB pass through devices, only one live guest is allowed per SCSI host pass through device." Signed-off-by: Han Cheng <hanc.fnst@cn.fujitsu.com>
2013-05-03 18:07:29 +00:00
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
qemu: Add vhost-scsi string for -device parameter Open /dev/vhost-scsi, and record the resulting file descriptor, so that the guest has access to the host device outside of the libvirt daemon. Pass this information, along with data parsed from the XML file, to build a device string for the qemu command line. That device string will be for either a vhost-scsi-ccw device in the case of an s390 machine, or vhost-scsi-pci for any others. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-22 03:58:18 +00:00
int qemuHostdevPrepareSCSIVHostDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
hostdev: Maintain a driver list of active mediated devices Keep track of the assigned mediated devices the same way we do it for the rest of hostdevs. Methods like 'Prepare', 'Update', and 'ReAttach' are introduced by this patch. Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-02-03 13:04:59 +00:00
int qemuHostdevPrepareMediatedDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
qemu: hostdev: Unify naming for qemuHostdevPrepare*Devices() Adopt the same names used for virHostdevPrepare*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:10:16 +00:00
int qemuHostdevPrepareDomainDevices(virQEMUDriverPtr driver,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
unsigned int flags);
qemu: hostdev: Unify naming for qemuHostdevReAttach*Devices() Adopt the same names used for virHostdevReAttach*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:12:48 +00:00
void qemuHostdevReAttachPCIDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
void qemuHostdevReAttachUSBDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
void qemuHostdevReAttachSCSIDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
qemu: Add vhost-scsi string for -device parameter Open /dev/vhost-scsi, and record the resulting file descriptor, so that the guest has access to the host device outside of the libvirt daemon. Pass this information, along with data parsed from the XML file, to build a device string for the qemu command line. That device string will be for either a vhost-scsi-ccw device in the case of an s390 machine, or vhost-scsi-pci for any others. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-22 03:58:18 +00:00
void qemuHostdevReAttachSCSIVHostDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
hostdev: Maintain a driver list of active mediated devices Keep track of the assigned mediated devices the same way we do it for the rest of hostdevs. Methods like 'Prepare', 'Update', and 'ReAttach' are introduced by this patch. Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-02-03 13:04:59 +00:00
void qemuHostdevReAttachMediatedDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
qemu: hostdev: Unify naming for qemuHostdevReAttach*Devices() Adopt the same names used for virHostdevReAttach*Devices() for consistency's sake and to make it easier to jump between the two. No functional changes.
2015-10-20 12:12:48 +00:00
void qemuHostdevReAttachDomainDevices(virQEMUDriverPtr driver,
virDomainDefPtr def);
Move QEMU hostdev helper code out of the QEMU driver The QEMU driver file is far too large. Move all the hostdev helper code out into a separate file. No functional change. * src/qemu/qemu_hostdev.c, src/qemu/qemu_hostdev.h, src/Makefile.am: Add hostdev helper file * src/qemu/qemu_driver.c: Delete hostdev code
2010-12-16 16:10:54 +00:00
#endif /* __QEMU_HOSTDEV_H__ */
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