[libvirt] [PATCH 13/18] qemu: Support vsock model=virtio-{non-}transitional
Cole Robinson
crobinso at redhat.com
Tue Jan 22 17:31:44 UTC 2019
On 01/21/2019 10:48 AM, Andrea Bolognani wrote:
> On Thu, 2019-01-17 at 12:52 -0500, Cole Robinson wrote:
> [...]
>> @@ -893,7 +893,9 @@ VIR_ENUM_IMPL(virDomainIOMMUModel, VIR_DOMAIN_IOMMU_MODEL_LAST,
>>
>> VIR_ENUM_IMPL(virDomainVsockModel, VIR_DOMAIN_VSOCK_MODEL_LAST,
>> "default",
>> - "virtio")
>> + "virtio",
>> + "virtio-transitional",
>> + "virtio-non-transitional")
>
> Same comment as always for VIR_ENUM_IMPL().
>
> [...]
>> @@ -1136,6 +1140,8 @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
>> {"virtio-9p-pci-non-transitional", QEMU_CAPS_DEVICE_VIRTIO_9P_NON_TRANSITIONAL},
>> {"virtio-balloon-pci-transitional", QEMU_CAPS_DEVICE_VIRTIO_BALLOON_TRANSITIONAL},
>> {"virtio-balloon-pci-non-transitional", QEMU_CAPS_DEVICE_VIRTIO_BALLOON_NON_TRANSITIONAL},
>> + {"vhost-vsock-pci-transitional", QEMU_CAPS_DEVICE_VHOST_VSOCK_TRANSITIONAL},
>> + {"vhost-vsock-pci-non-transitional", QEMU_CAPS_DEVICE_VHOST_VSOCK_NON_TRANSITIONAL},
>> };
>
> Same comment as always for capabilities.
>
> [...]
>> @@ -495,6 +495,12 @@ qemuBuildVirtioTransitional(virBufferPtr buf,
>> tmodel_cap = QEMU_CAPS_DEVICE_VIRTIO_BALLOON_TRANSITIONAL;
>> ntmodel_cap = QEMU_CAPS_DEVICE_VIRTIO_BALLOON_NON_TRANSITIONAL;
>> break;
>> + case VIR_DOMAIN_DEVICE_VSOCK:
>> + has_tmodel = model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_TRANSITIONAL;
>> + has_ntmodel = model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_NON_TRANSITIONAL;
>> + tmodel_cap = QEMU_CAPS_DEVICE_VHOST_VSOCK_TRANSITIONAL;
>> + ntmodel_cap = QEMU_CAPS_DEVICE_VHOST_VSOCK_NON_TRANSITIONAL;
>> + break;
>>
>> case VIR_DOMAIN_DEVICE_LEASE:
>> case VIR_DOMAIN_DEVICE_INPUT:
>
> Sorry I didn't point this out until now, but having an empty line
> after each 'break;' would be nice from the visual point of view...
>
Will do
> [...]
>> @@ -10471,11 +10476,11 @@ qemuBuildVsockDevStr(virDomainDefPtr def,
>> virBuffer buf = VIR_BUFFER_INITIALIZER;
>> char *ret = NULL;
>>
>> - if (vsock->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
>> - virBufferAddLit(&buf, "vhost-vsock-ccw");
>> - } else {
>> - virBufferAddLit(&buf, "vhost-vsock-pci");
>> - }
>> + if (qemuBuildVirtioTransitional(&buf, "vhost-vsock", qemuCaps,
>> + vsock->info.type,
>> + vsock->model, NULL,
>> + VIR_DOMAIN_DEVICE_VSOCK) < 0)
>> + goto cleanup;
>
> Similar comment as vhost-scsi in 7/18: you should make sure this is
> actually safe, and either way move to qemuBuildVirtioDevStr() first
> and only then to qemuBuildVirtioTransitional().
>
I'll split this out too.
> [...]
>> +++ b/tests/qemuxml2xmltest.c
>> @@ -1269,12 +1269,14 @@ mymain(void)
>> QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
>> QEMU_CAPS_DEVICE_PCIE_PCI_BRIDGE,
>> QEMU_CAPS_DEVICE_PCIE_ROOT_PORT,
>> - QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY);
>> + QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
>> + QEMU_CAPS_DEVICE_VHOST_VSOCK);
>> DO_TEST("virtio-non-transitional",
>> QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
>> QEMU_CAPS_DEVICE_PCIE_PCI_BRIDGE,
>> QEMU_CAPS_DEVICE_PCIE_ROOT_PORT,
>> - QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY);
>> + QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
>> + QEMU_CAPS_DEVICE_VHOST_VSOCK);
>
> This could have gone into patch 2/18.
>
Seems a little strange since it only became relevant with this patch,
but I'll change it
- Cole
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