External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-10-01 20:05:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

virpcimock: Mock the SRIOV Virtual functions

Browse Source 
The softlink to physfn is the way to know if the device is
VF or not. So, the patch softlinks 'physfn' to the parent function.
The multifunction PCI devices dont have 'physfn' softlinks.

The patch adds few Virtual functions to the mock environment and
changes the existing VFIO test xmls using the VFs to use the newly
added VFs for their use case.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Shivaprasad G Bhat 2019-08-29 16:18:59 -03:00 committed by Michal Privoznik
parent 16c9890383
commit 5a9dc4a50c
13 changed files with 28 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tests/qemuxml2argvdata/hostdev-vfio-multidomain.args
View File

@ -27,5 +27,5 @@ server,nowait \
-usb \
-drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-ide0-0-0 \
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
-device vfio-pci,host=55aa:20:0f.3,id=hostdev0,bus=pci.0,addr=0x3 \
-device vfio-pci,host=0021:de:1f.1,id=hostdev0,bus=pci.0,addr=0x3 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

2
tests/qemuxml2argvdata/hostdev-vfio-multidomain.xml
View File

@ -25,7 +25,7 @@
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x55aa' bus='32' slot='15' function='3'/>
<address domain='0x0021' bus='222' slot='31' function='1'/>
</source>
</hostdev>
<memballoon model='virtio'/>

2
tests/qemuxml2argvdata/hostdev-vfio.args
View File

@ -27,5 +27,5 @@ server,nowait \
-usb \
-drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-ide0-0-0 \
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
-device vfio-pci,host=0000:06:12.5,id=hostdev0,bus=pci.0,addr=0x3 \
-device vfio-pci,host=0000:06:12.1,id=hostdev0,bus=pci.0,addr=0x3 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

2
tests/qemuxml2argvdata/hostdev-vfio.xml
View File

@ -27,7 +27,7 @@
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
<address domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
</source>
</hostdev>
<memballoon model='virtio'/>

2
tests/qemuxml2argvdata/net-hostdev-fail.xml
View File

@ -25,7 +25,7 @@
<interface type='hostdev' managed='yes'>
<mac address='00:11:22:33:44:55'/>
<source>
<address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x1'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
</source>
<model type='virtio'/>
<filterref filter='myfilter'/>

2
tests/qemuxml2argvdata/net-hostdev-vfio.args
View File

@ -27,5 +27,5 @@ server,nowait \
-usb \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
-device vfio-pci,host=0000:03:07.1,id=hostdev0,bus=pci.0,addr=0x3 \
-device vfio-pci,host=0000:06:12.1,id=hostdev0,bus=pci.0,addr=0x3 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

2
tests/qemuxml2argvdata/net-hostdev-vfio.xml
View File

@ -26,7 +26,7 @@
<mac address='00:11:22:33:44:55'/>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x1'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
</source>
<vlan>
<tag id='42'/>

2
tests/qemuxml2xmloutdata/hostdev-vfio.xml
View File

@ -32,7 +32,7 @@
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
<address domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</hostdev>

2
tests/qemuxml2xmloutdata/net-hostdev-vfio.xml
View File

@ -31,7 +31,7 @@
<mac address='00:11:22:33:44:55'/>
<driver name='vfio'/>
<source>
<address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x1'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
</source>
<vlan>
<tag id='42'/>

19
tests/virpcimock.c
View File

@ -124,6 +124,7 @@ struct pciDevice {
int device;
int klass;
int iommuGroup;
const char *physfn;
struct pciDriver *driver; /* Driver attached. NULL if attached to no driver */
};
@ -545,6 +546,15 @@ pci_device_new_from_stub(const struct pciDevice *data)
make_symlink(devsympath, devid, tmp);
if (dev->physfn) {
if (snprintf(tmp, sizeof(tmp),
"%s%s/devices/%s", fakerootdir,
SYSFS_PCI_PREFIX, dev->physfn) < 0) {
ABORT("@tmp overflow");
}
make_symlink(devpath, "physfn", tmp);
}
if (pci_device_autobind(dev) < 0)
ABORT("Unable to bind: %s", devid);
@ -1020,6 +1030,15 @@ init_env(void)
MAKE_PCI_DEVICE("0000:0a:01.0", 0x8086, 0x0047, 8);
MAKE_PCI_DEVICE("0000:0a:02.0", 0x8286, 0x0048, 8);
MAKE_PCI_DEVICE("0000:0a:03.0", 0x8386, 0x0048, 8);
MAKE_PCI_DEVICE("0000:06:12.0", 0x8086, 0x0047, 9);
MAKE_PCI_DEVICE("0000:06:12.1", 0x8086, 0x0047, 10,
.physfn = "0000:06:12.0"); /* Virtual Function */
MAKE_PCI_DEVICE("0000:06:12.2", 0x8086, 0x0047, 11,
.physfn = "0000:06:12.0"); /* Virtual Function */
MAKE_PCI_DEVICE("0021:de:1f.0", 0x8086, 0x0047, 12);
MAKE_PCI_DEVICE("0021:de:1f.1", 0x8086, 0x0047, 13,
.physfn = "0021:de:1f.0"); /* Virtual Function */
}

BIN
tests/virpcitestdata/0000-06-12.0.config Normal file
View File

Binary file not shown.

BIN
tests/virpcitestdata/0000-06-12.1.config Normal file
View File

Binary file not shown.

BIN
tests/virpcitestdata/0000-06-12.2.config Normal file
View File

Binary file not shown.