[libvirt] [PATCHv3 07/13] qemu: support new pci controller model "pcie-root-port"
Laine Stump
laine at laine.org
Sat Jul 25 19:58:31 UTC 2015
This is backed by the qemu device ioh3420.
chassis and port from the <target> subelement are used to store/set the
respective qemu device options for the ioh3420. Currently, chassis is
set to be the index of the controller, and port is set to
"(slot << 3) + function" (per suggestion from Alex Williamson).
---
change from V2:
* adjust for enum-based model name
* verify valid chassis/port when building commandline
* add a negative test for too many root-ports
src/qemu/qemu_command.c | 50 ++++++++++++++++++
.../qemuxml2argv-pcie-root-port-too-many.xml | 60 ++++++++++++++++++++++
.../qemuxml2argv-pcie-root-port.args | 10 ++++
tests/qemuxml2argvtest.c | 15 ++++++
tests/qemuxml2xmltest.c | 1 +
5 files changed, 136 insertions(+)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 7f58f97..187195f 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1606,6 +1606,12 @@ qemuCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED,
*/
flags = VIR_PCI_CONNECT_TYPE_PCIE;
break;
+ case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
+ /* pcie-root-port can only connect to pcie-root, isn't
+ * hot-pluggable
+ */
+ flags = VIR_PCI_CONNECT_TYPE_PCIE_ROOT;
+ break;
default:
break;
}
@@ -2275,6 +2281,13 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def,
options->modelName = VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_I82801B11_BRIDGE;
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
+ if (options->modelName == VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE)
+ options->modelName = VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_IOH3420;
+ if (options->chassis == -1)
+ options->chassis = cont->idx;
+ if (options->port == -1)
+ options->port = (addr->slot << 3) + addr->function;
+ break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT:
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_LAST:
@@ -2386,6 +2399,10 @@ qemuAssignDevicePCISlots(virDomainDefPtr def,
*/
flags = VIR_PCI_CONNECT_TYPE_PCIE;
break;
+ case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
+ /* pcie-root-port can only plug into pcie-root */
+ flags = VIR_PCI_CONNECT_TYPE_PCIE_ROOT;
+ break;
default:
flags = VIR_PCI_CONNECT_HOTPLUGGABLE | VIR_PCI_CONNECT_TYPE_PCI;
break;
@@ -4716,6 +4733,39 @@ qemuBuildControllerDevStr(virDomainDefPtr domainDef,
}
virBufferAsprintf(&buf, "%s,id=%s", modelName, def->info.alias);
break;
+ case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
+ if (def->opts.pciopts.modelName
+ == VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("autogenerated pcie-root-port options not set"));
+ goto error;
+ }
+ modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
+ if (!modelName) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unknown pcie-root-port model name value %d"),
+ def->opts.pciopts.modelName);
+ goto error;
+ }
+ if (def->opts.pciopts.modelName
+ != VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_IOH3420) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("PCI controller model name '%s' "
+ "is not valid for a pcie-root-port"),
+ modelName);
+ goto error;
+ }
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IOH3420)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("the pcie-root-port (ioh3420) "
+ "controller is not supported in this QEMU binary"));
+ goto error;
+ }
+
+ virBufferAsprintf(&buf, "%s,port=0x%x,chassis=%d,id=%s",
+ modelName, def->opts.pciopts.port,
+ def->opts.pciopts.chassis, def->info.alias);
+ break;
}
break;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
new file mode 100644
index 0000000..910183e
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
@@ -0,0 +1,60 @@
+<domain type='qemu'>
+ <name>q35-test</name>
+ <uuid>11dbdcdd-4c3b-482b-8903-9bdb8c0a2774</uuid>
+ <memory unit='KiB'>2097152</memory>
+ <currentMemory unit='KiB'>2097152</currentMemory>
+ <vcpu placement='static' cpuset='0-1'>2</vcpu>
+ <os>
+ <type arch='x86_64' machine='q35'>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/libexec/qemu-kvm</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='sda' bus='sata'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='pci' index='0' model='pcie-root'/>
+ <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
+ <controller type='pci' index='2' model='pci-bridge'/>
+ <controller type='pci' index='3' model='pcie-root-port'/>
+ <controller type='pci' index='4' model='pcie-root-port'/>
+ <controller type='pci' index='5' model='pcie-root-port'/>
+ <controller type='pci' index='6' model='pcie-root-port'/>
+ <controller type='pci' index='7' model='pcie-root-port'/>
+ <controller type='pci' index='8' model='pcie-root-port'/>
+ <controller type='pci' index='9' model='pcie-root-port'/>
+ <controller type='pci' index='10' model='pcie-root-port'/>
+ <controller type='pci' index='11' model='pcie-root-port'/>
+ <controller type='pci' index='12' model='pcie-root-port'/>
+ <controller type='pci' index='13' model='pcie-root-port'/>
+ <controller type='pci' index='14' model='pcie-root-port'/>
+ <controller type='pci' index='15' model='pcie-root-port'/>
+ <controller type='pci' index='16' model='pcie-root-port'/>
+ <controller type='pci' index='17' model='pcie-root-port'/>
+ <controller type='pci' index='18' model='pcie-root-port'/>
+ <controller type='pci' index='19' model='pcie-root-port'/>
+ <controller type='pci' index='20' model='pcie-root-port'/>
+ <controller type='pci' index='21' model='pcie-root-port'/>
+ <controller type='pci' index='22' model='pcie-root-port'/>
+ <controller type='pci' index='23' model='pcie-root-port'/>
+ <controller type='pci' index='24' model='pcie-root-port'/>
+ <controller type='pci' index='25' model='pcie-root-port'/>
+ <controller type='pci' index='26' model='pcie-root-port'/>
+ <controller type='pci' index='27' model='pcie-root-port'/>
+ <controller type='pci' index='28' model='pcie-root-port'/>
+ <controller type='pci' index='29' model='pcie-root-port'/>
+ <controller type='pci' index='30' model='pcie-root-port'/>
+ <controller type='pci' index='31' model='pcie-root-port'/>
+ <controller type='sata' index='0'/>
+ <video>
+ <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='1'/>
+ </video>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
new file mode 100644
index 0000000..5e4891c
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
@@ -0,0 +1,10 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
+/usr/libexec/qemu-kvm -S -M q35 -m 2048 -smp 2 -nographic -nodefaults \
+-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c \
+-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
+-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
+-device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,addr=0x2 \
+-device ioh3420,port=0x1a,chassis=40,id=pci.4,bus=pcie.0,addr=0x3 \
+-drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-sata0-0-0 \
+-device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
+-vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=33554432
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index f9b30d9..b429bc5 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1500,6 +1500,21 @@ mymain(void)
QEMU_CAPS_DRIVE, QEMU_CAPS_ICH9_AHCI,
QEMU_CAPS_VGA, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_VGA, QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
+ DO_TEST("pcie-root-port",
+ QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_IOH3420,
+ QEMU_CAPS_DRIVE, QEMU_CAPS_ICH9_AHCI,
+ QEMU_CAPS_VGA, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+ QEMU_CAPS_VGA, QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
+
+ DO_TEST_ERROR("pcie-root-port-too-many",
+ QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_IOH3420,
+ QEMU_CAPS_DRIVE, QEMU_CAPS_ICH9_AHCI,
+ QEMU_CAPS_VGA, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+ QEMU_CAPS_VGA, QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
DO_TEST("hostdev-scsi-lsi", QEMU_CAPS_DRIVE,
QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE,
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 6b48bf4..74afdb4 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -568,6 +568,7 @@ mymain(void)
DO_TEST_DIFFERENT("pcie-root");
DO_TEST_DIFFERENT("q35");
DO_TEST("pcie-root-port");
+ DO_TEST("pcie-root-port-too-many");
DO_TEST("hostdev-scsi-lsi");
DO_TEST("hostdev-scsi-virtio-scsi");
--
2.1.0
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