@@ -423,13 +423,14 @@ qemuBuildDeviceAddressStr(virBufferPtr buf,
static int
qemuBuildVirtioDevStr(virBufferPtr buf,
const char *baseName,
- virQEMUCapsPtr qemuCaps ATTRIBUTE_UNUSED,
+ virQEMUCapsPtr qemuCaps,
virDomainDeviceType devtype,
void *devdata)
{
const char *implName = NULL;
virDomainDeviceDef device = { .type = devtype };
virDomainDeviceInfoPtr info;
+ bool has_tmodel, has_ntmodel;
virDomainDeviceSetData(&device, devdata);
info = virDomainDeviceGetInfo(&device);
@@ -471,6 +472,78 @@ qemuBuildVirtioDevStr(virBufferPtr buf,
virBufferAsprintf(buf, "%s-%s", baseName, implName);
+ switch (devtype) {
+ case VIR_DOMAIN_DEVICE_DISK:
+ has_tmodel = device.data.disk->model == VIR_DOMAIN_DISK_MODEL_VIRTIO_TRANSITIONAL;
+ has_ntmodel = device.data.disk->model == VIR_DOMAIN_DISK_MODEL_VIRTIO_NON_TRANSITIONAL;
+ break;
+
+ case VIR_DOMAIN_DEVICE_NET:
+ case VIR_DOMAIN_DEVICE_LEASE:
+ case VIR_DOMAIN_DEVICE_FS:
+ case VIR_DOMAIN_DEVICE_INPUT:
+ case VIR_DOMAIN_DEVICE_SOUND:
+ case VIR_DOMAIN_DEVICE_VIDEO:
+ case VIR_DOMAIN_DEVICE_HOSTDEV:
+ case VIR_DOMAIN_DEVICE_WATCHDOG:
+ case VIR_DOMAIN_DEVICE_CONTROLLER:
+ case VIR_DOMAIN_DEVICE_GRAPHICS:
+ case VIR_DOMAIN_DEVICE_HUB:
+ case VIR_DOMAIN_DEVICE_REDIRDEV:
+ case VIR_DOMAIN_DEVICE_NONE:
+ case VIR_DOMAIN_DEVICE_SMARTCARD:
+ case VIR_DOMAIN_DEVICE_CHR:
+ case VIR_DOMAIN_DEVICE_MEMBALLOON:
+ case VIR_DOMAIN_DEVICE_NVRAM:
+ case VIR_DOMAIN_DEVICE_SHMEM:
+ case VIR_DOMAIN_DEVICE_TPM:
+ case VIR_DOMAIN_DEVICE_PANIC:
+ case VIR_DOMAIN_DEVICE_RNG:
+ case VIR_DOMAIN_DEVICE_MEMORY:
+ case VIR_DOMAIN_DEVICE_IOMMU:
+ case VIR_DOMAIN_DEVICE_VSOCK:
+ case VIR_DOMAIN_DEVICE_LAST:
+ default:
+ return 0;
+ }
+
+ if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
+ (has_tmodel || has_ntmodel)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("virtio (non-)transitional models are not "
+ "supported for address type=%s"),
+ virDomainDeviceAddressTypeToString(info->type));
+ return -1;
+ }
+
+ if (has_tmodel) {
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_NON_TRANSITIONAL)) {
+ virBufferAddLit(buf, "-transitional");
+ } else if (virQEMUCapsGet(qemuCaps,
+ QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) {
+ virBufferAddLit(buf, ",disable-legacy=off,disable-modern=off");
+ }
+ /* No error if -transitional is not supported: our address
+ * allocation will force the device into plain PCI bus, which
+ * is functionally identical to standard 'virtio-XXX' behavior
+ */
+ } else if (has_ntmodel) {
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_NON_TRANSITIONAL)) {
+ virBufferAddLit(buf, "-non-transitional");
+ } else if (virQEMUCapsGet(qemuCaps,
+ QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) {
+ /* Even if the QEMU binary doesn't support the non-transitional
+ * device, we can still make it work by manually disabling legacy
+ * VirtIO and enabling modern VirtIO */
+ virBufferAddLit(buf, ",disable-legacy=on,disable-modern=off");
+ } else {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("virtio non-transitional model not supported "
+ "for this qemu"));
+ return -1;
+ }
+ }
+
return 0;
}
@@ -720,7 +720,19 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDefPtr dev,
case VIR_DOMAIN_DEVICE_DISK:
switch ((virDomainDiskBus) dev->data.disk->bus) {
case VIR_DOMAIN_DISK_BUS_VIRTIO:
- return virtioFlags; /* only virtio disks use PCI */
+ /* only virtio disks use PCI */
+ switch ((virDomainDiskModel) dev->data.disk->model) {
+ case VIR_DOMAIN_DISK_MODEL_VIRTIO_TRANSITIONAL:
+ /* Transitional devices only work in conventional PCI slots */
+ return pciFlags;
+ case VIR_DOMAIN_DISK_MODEL_VIRTIO:
+ case VIR_DOMAIN_DISK_MODEL_VIRTIO_NON_TRANSITIONAL:
+ case VIR_DOMAIN_DISK_MODEL_DEFAULT:
+ return virtioFlags;
+ case VIR_DOMAIN_DISK_MODEL_LAST:
+ break;
+ }
+ return 0;
case VIR_DOMAIN_DISK_BUS_IDE:
case VIR_DOMAIN_DISK_BUS_FDC:
@@ -27,8 +27,8 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
addr=0x1 \
-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,scsi=off,bus=pci.1,addr=0x0,drive=drive-virtio-disk0,\
-id=virtio-disk0,bootindex=1 \
+-device virtio-blk-pci,disable-legacy=on,disable-modern=off,scsi=off,bus=pci.1,\
+addr=0x0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on
@@ -27,8 +27,8 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
addr=0x1 \
-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,scsi=off,bus=pci.1,addr=0x0,drive=drive-virtio-disk0,\
-id=virtio-disk0,bootindex=1 \
+-device virtio-blk-pci-non-transitional,scsi=off,bus=pci.1,addr=0x0,\
+drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on
@@ -25,10 +25,11 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-boot strict=on \
-device pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
addr=0x1 \
--device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
+-device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,scsi=off,bus=pci.1,addr=0x0,drive=drive-virtio-disk0,\
-id=virtio-disk0,bootindex=1 \
+-device virtio-blk-pci,disable-legacy=off,disable-modern=off,scsi=off,\
+bus=pci.2,addr=0x1,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on
@@ -25,10 +25,11 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-boot strict=on \
-device pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
addr=0x1 \
--device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
+-device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,scsi=off,bus=pci.1,addr=0x0,drive=drive-virtio-disk0,\
-id=virtio-disk0,bootindex=1 \
+-device virtio-blk-pci-transitional,scsi=off,bus=pci.2,addr=0x1,\
+drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on
@@ -18,7 +18,7 @@
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='vda' bus='virtio'/>
- <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
</disk>
<controller type='usb' index='0' model='none'/>
<controller type='sata' index='0'>
@@ -30,9 +30,13 @@
<target chassis='1' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
</controller>
- <controller type='pci' index='2' model='pcie-root-port'>
+ <controller type='pci' index='2' model='pcie-to-pci-bridge'>
+ <model name='pcie-pci-bridge'/>
+ <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+ </controller>
+ <controller type='pci' index='3' model='pcie-root-port'>
<model name='pcie-root-port'/>
- <target chassis='2' port='0x9'/>
+ <target chassis='3' port='0x9'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<input type='mouse' bus='ps2'/>
Add new <disk> model values for virtio transitional devices. When combined with bus='virtio': * "virtio-transitional" maps to qemu "virtio-blk-pci-transitional" * "virtio-non-transitional" maps to qemu "virtio-blk-pci-non-transitional" Signed-off-by: Cole Robinson <crobinso@redhat.com> --- src/qemu/qemu_command.c | 75 ++++++++++++++++++- src/qemu/qemu_domain_address.c | 14 +++- .../virtio-non-transitional.x86_64-3.1.0.args | 4 +- ...virtio-non-transitional.x86_64-latest.args | 4 +- .../virtio-transitional.x86_64-3.1.0.args | 7 +- .../virtio-transitional.x86_64-latest.args | 7 +- .../virtio-transitional.xml | 10 ++- 7 files changed, 106 insertions(+), 15 deletions(-) -- 2.20.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list