[PATCH libvirt v1] conf: verify for duplicate hostdevs
Shalini Chellathurai Saroja
shalini at linux.ibm.com
Fri Jun 18 10:46:12 UTC 2021
It is possible to define/edit(in shut off state) a domain XML with
same hostdev device repeated more than once, as shown below. This
behavior is not expected. So, this patch fixes it.
vser1:
<domain type='kvm'>
[...]
<devices>
[...]
<hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ccw'>
<source>
<address uuid='8e782fea-e5f4-45fa-a0f9-024cf66e5009'/>
</source>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0005'/>
</hostdev>
<hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ccw'>
<source>
<address uuid='8e782fea-e5f4-45fa-a0f9-024cf66e5009'/>
</source>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0006'/>
</hostdev>
[...]
</devices>
</domain>
$ virsh define vser1
Domain 'vser1' defined from vser1
Signed-off-by: Shalini Chellathurai Saroja <shalini at linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk at linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy at linux.ibm.com>
---
src/conf/domain_conf.c | 2 +-
src/conf/domain_conf.h | 2 +
src/conf/domain_validate.c | 21 ++++++++++
src/libvirt_private.syms | 1 +
.../hostdev-mdev-duplicate.err | 1 +
.../hostdev-mdev-duplicate.xml | 41 +++++++++++++++++++
.../hostdev-pci-duplicate.err | 1 +
.../hostdev-pci-duplicate.xml | 40 ++++++++++++++++++
.../hostdev-scsi-duplicate.err | 1 +
.../hostdev-scsi-duplicate.xml | 40 ++++++++++++++++++
.../hostdev-usb-duplicate.err | 1 +
.../hostdev-usb-duplicate.xml | 40 ++++++++++++++++++
tests/qemuxml2argvtest.c | 8 ++++
13 files changed, 198 insertions(+), 1 deletion(-)
create mode 100644 tests/qemuxml2argvdata/hostdev-mdev-duplicate.err
create mode 100644 tests/qemuxml2argvdata/hostdev-mdev-duplicate.xml
create mode 100644 tests/qemuxml2argvdata/hostdev-pci-duplicate.err
create mode 100644 tests/qemuxml2argvdata/hostdev-pci-duplicate.xml
create mode 100644 tests/qemuxml2argvdata/hostdev-scsi-duplicate.err
create mode 100644 tests/qemuxml2argvdata/hostdev-scsi-duplicate.xml
create mode 100644 tests/qemuxml2argvdata/hostdev-usb-duplicate.err
create mode 100644 tests/qemuxml2argvdata/hostdev-usb-duplicate.xml
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f65509d8..5746f69e 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15369,7 +15369,7 @@ virDomainHostdevMatchCaps(virDomainHostdevDef *a,
}
-static int
+int
virDomainHostdevMatch(virDomainHostdevDef *a,
virDomainHostdevDef *b)
{
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index f706c498..4d9d499b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3590,6 +3590,8 @@ virDomainHostdevDef *
virDomainHostdevRemove(virDomainDef *def, size_t i);
int virDomainHostdevFind(virDomainDef *def, virDomainHostdevDef *match,
virDomainHostdevDef **found);
+int virDomainHostdevMatch(virDomainHostdevDef *a,
+ virDomainHostdevDef *b);
virDomainGraphicsListenDef *
virDomainGraphicsGetListen(virDomainGraphicsDef *def, size_t i);
diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index 2124d25d..df2ab473 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -1068,7 +1068,25 @@ virDomainDefDuplicateDiskInfoValidate(const virDomainDef *def)
return 0;
}
+static int
+virDomainDefDuplicateHostdevInfoValidate(const virDomainDef *def)
+{
+ size_t i;
+ size_t j;
+ for (i = 0; i < def->nhostdevs; i++) {
+ for (j = i + 1; j < def->nhostdevs; j++) {
+ if (virDomainHostdevMatch(def->hostdevs[i],
+ def->hostdevs[j])) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("Hostdev already exists in the domain configuration"));
+ return -1;
+ }
+ }
+ }
+
+ return 0;
+}
/**
* virDomainDefDuplicateDriveAddressesValidate:
@@ -1529,6 +1547,9 @@ virDomainDefValidateInternal(const virDomainDef *def,
if (virDomainDefDuplicateDiskInfoValidate(def) < 0)
return -1;
+ if (virDomainDefDuplicateHostdevInfoValidate(def) < 0)
+ return -1;
+
if (virDomainDefDuplicateDriveAddressesValidate(def) < 0)
return -1;
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 2efa7876..f0d1b7b4 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -457,6 +457,7 @@ virDomainHostdevDefFree;
virDomainHostdevDefNew;
virDomainHostdevFind;
virDomainHostdevInsert;
+virDomainHostdevMatch;
virDomainHostdevModeTypeToString;
virDomainHostdevRemove;
virDomainHostdevSubsysPCIBackendTypeToString;
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-duplicate.err b/tests/qemuxml2argvdata/hostdev-mdev-duplicate.err
new file mode 100644
index 00000000..590afd30
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-mdev-duplicate.err
@@ -0,0 +1 @@
+XML error: Hostdev already exists in the domain configuration
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-duplicate.xml b/tests/qemuxml2argvdata/hostdev-mdev-duplicate.xml
new file mode 100644
index 00000000..1c5e3263
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-mdev-duplicate.xml
@@ -0,0 +1,41 @@
+<domain type='qemu'>
+ <name>QEMUGuest2</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219136</memory>
+ <currentMemory unit='KiB'>219136</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <audio id='1' type='none'/>
+ <hostdev mode='subsystem' type='mdev' managed='no' model='vfio-pci'>
+ <source>
+ <address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
+ </source>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </hostdev>
+ <hostdev mode='subsystem' type='mdev' managed='no' model='vfio-pci'>
+ <source>
+ <address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
+ </source>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
+ </hostdev>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/hostdev-pci-duplicate.err b/tests/qemuxml2argvdata/hostdev-pci-duplicate.err
new file mode 100644
index 00000000..590afd30
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-pci-duplicate.err
@@ -0,0 +1 @@
+XML error: Hostdev already exists in the domain configuration
diff --git a/tests/qemuxml2argvdata/hostdev-pci-duplicate.xml b/tests/qemuxml2argvdata/hostdev-pci-duplicate.xml
new file mode 100644
index 00000000..c744fddf
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-pci-duplicate.xml
@@ -0,0 +1,40 @@
+<domain type='qemu'>
+ <name>QEMUGuest2</name>
+ <uuid>c7a5fdbd-edaf-9466-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <hostdev mode='subsystem' type='pci' managed='yes'>
+ <source>
+ <address domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='pci' managed='yes'>
+ <source>
+ <address domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
+ </source>
+ </hostdev>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/hostdev-scsi-duplicate.err b/tests/qemuxml2argvdata/hostdev-scsi-duplicate.err
new file mode 100644
index 00000000..590afd30
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-scsi-duplicate.err
@@ -0,0 +1 @@
+XML error: Hostdev already exists in the domain configuration
diff --git a/tests/qemuxml2argvdata/hostdev-scsi-duplicate.xml b/tests/qemuxml2argvdata/hostdev-scsi-duplicate.xml
new file mode 100644
index 00000000..ea367de3
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-scsi-duplicate.xml
@@ -0,0 +1,40 @@
+<domain type='qemu'>
+ <name>QEMUGuest2</name>
+ <uuid>c7a5fdbd-edaf-9466-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='scsi' index='0' model='virtio-scsi'/>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <hostdev mode='subsystem' type='scsi' managed='yes'>
+ <source>
+ <adapter name='scsi_host0'/>
+ <address bus='0' target='0' unit='0'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='scsi' managed='yes'>
+ <source>
+ <adapter name='scsi_host0'/>
+ <address bus='0' target='0' unit='0'/>
+ </source>
+ </hostdev>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/hostdev-usb-duplicate.err b/tests/qemuxml2argvdata/hostdev-usb-duplicate.err
new file mode 100644
index 00000000..590afd30
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-usb-duplicate.err
@@ -0,0 +1 @@
+XML error: Hostdev already exists in the domain configuration
diff --git a/tests/qemuxml2argvdata/hostdev-usb-duplicate.xml b/tests/qemuxml2argvdata/hostdev-usb-duplicate.xml
new file mode 100644
index 00000000..533a9059
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-usb-duplicate.xml
@@ -0,0 +1,40 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219136</memory>
+ <currentMemory unit='KiB'>219136</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <hostdev mode='subsystem' type='usb' managed='no'>
+ <source>
+ <address bus='14' device='6'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='usb' managed='no'>
+ <source>
+ <address bus='14' device='6'/>
+ </source>
+ </hostdev>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 7fed871c..b9f96532 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1915,8 +1915,11 @@ mymain(void)
DO_TEST("hostdev-usb-address", NONE);
DO_TEST("hostdev-usb-address-device", NONE);
DO_TEST("hostdev-usb-address-device-boot", NONE);
+ DO_TEST_PARSE_ERROR("hostdev-usb-duplicate", NONE);
DO_TEST("hostdev-pci-address", QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST("hostdev-pci-address-device", QEMU_CAPS_DEVICE_VFIO_PCI);
+ DO_TEST_PARSE_ERROR("hostdev-pci-duplicate",
+ QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST("hostdev-vfio",
QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST("hostdev-vfio-multidomain",
@@ -1927,6 +1930,8 @@ mymain(void)
QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST_PARSE_ERROR("hostdev-mdev-invalid-target-address",
QEMU_CAPS_DEVICE_VFIO_PCI);
+ DO_TEST_PARSE_ERROR("hostdev-mdev-duplicate",
+ QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST_CAPS_LATEST("hostdev-mdev-display-spice-opengl");
DO_TEST_CAPS_LATEST("hostdev-mdev-display-spice-egl-headless");
DO_TEST_CAPS_LATEST("hostdev-mdev-display-vnc");
@@ -2856,6 +2861,9 @@ mymain(void)
QEMU_CAPS_VIRTIO_SCSI, QEMU_CAPS_DEVICE_VHOST_SCSI,
QEMU_CAPS_DEVICE_PCIE_ROOT_PORT,
QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY);
+ DO_TEST_PARSE_ERROR("hostdev-scsi-duplicate",
+ QEMU_CAPS_VIRTIO_SCSI,
+ QEMU_CAPS_DEVICE_VHOST_SCSI);
DO_TEST_CAPS_VER("mlock-on", "3.0.0");
DO_TEST_CAPS_VER("mlock-off", "3.0.0");
--
2.30.2
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