[libvirt] [PATCH v1 5/7] qemu: Add support for virtio input ccw devices

John Ferlan jferlan at redhat.com
Fri Mar 16 13:39:59 UTC 2018



On 03/08/2018 11:07 AM, Farhan Ali wrote:
> QEMU on S390 (since v2.11) can support virtio input ccw devices.
> So build the qemu command line for ccw devices.
> 
> Also introduce capabilities for virtio-{keyboard, mouse, tablet}-ccw
> devices.
> 
> Signed-off-by: Farhan Ali <alifm at linux.vnet.ibm.com>
> Signed-off-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
> ---
>  docs/formatdomain.html.in                        |  2 ++
>  src/qemu/qemu_capabilities.c                     |  8 ++++++++
>  src/qemu/qemu_capabilities.h                     |  5 +++++
>  src/qemu/qemu_command.c                          | 14 +++++++++++---
>  tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml |  3 +++
>  5 files changed, 29 insertions(+), 3 deletions(-)
> 

Similar to earlier - let's split the "capability" and "functionality"

John

> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 0908709..08dc74b 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -6048,6 +6048,8 @@ qemu-kvm -net nic,model=? /dev/null
>        sub-element <code><address></code> which can tie the
>        device to a particular PCI
>        slot, <a href="#elementsAddress">documented above</a>.
> +      On S390, <code>address</code> can be used to provide a CCW address for
> +      an input device (<span class="since">since 4.2.0</span>).
>  
>        For type <code>passthrough</code>, the mandatory sub-element <code>source</code>
>        must have an <code>evdev</code> attribute containing the absolute path to the
> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> index 9db4c31..14564e8 100644
> --- a/src/qemu/qemu_capabilities.c
> +++ b/src/qemu/qemu_capabilities.c
> @@ -460,6 +460,11 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
>                "machine.pseries.max-cpu-compat",
>                "dump-completed",
>                "virtio-gpu-ccw",
> +              "virtio-keyboard-ccw",
> +
> +              /* 285 */
> +              "virtio-mouse-ccw",
> +              "virtio-tablet-ccw",
>      );
>  
>  
> @@ -1696,6 +1701,9 @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
>      { "isa-serial", QEMU_CAPS_DEVICE_ISA_SERIAL },
>      { "pl011", QEMU_CAPS_DEVICE_PL011 },
>      { "virtio-gpu-ccw", QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW },
> +    { "virtio-keyboard-ccw", QEMU_CAPS_DEVICE_VIRTIO_KEYBOARD_CCW },
> +    { "virtio-mouse-ccw", QEMU_CAPS_DEVICE_VIRTIO_MOUSE_CCW },
> +    { "virtio-tablet-ccw", QEMU_CAPS_DEVICE_VIRTIO_TABLET_CCW },
>  };
>  
>  static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioBalloon[] = {
> diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
> index b4852e5..3f3c29f 100644
> --- a/src/qemu/qemu_capabilities.h
> +++ b/src/qemu/qemu_capabilities.h
> @@ -445,6 +445,11 @@ typedef enum {
>      QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT, /* -machine pseries,max-cpu-compat= */
>      QEMU_CAPS_DUMP_COMPLETED, /* DUMP_COMPLETED event */
>      QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW, /* -device virtio-gpu-ccw */
> +    QEMU_CAPS_DEVICE_VIRTIO_KEYBOARD_CCW, /* -device virtio-keyboard-ccw */
> +
> +    /* 285 */
> +    QEMU_CAPS_DEVICE_VIRTIO_MOUSE_CCW, /* -device virtio-mouse-ccw */
> +    QEMU_CAPS_DEVICE_VIRTIO_TABLET_CCW, /* -device virtio-tablet-ccw */
>  
>      QEMU_CAPS_LAST /* this must always be the last item */
>  } virQEMUCapsFlags;
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index ba63670..5477e14 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -3921,6 +3921,8 @@ qemuBuildVirtioInputDevStr(const virDomainDef *def,
>  
>      if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
>          suffix = "-pci";
> +    } else if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
> +        suffix = "-ccw";
>      } else if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) {
>          suffix = "-device";
>      } else {
> @@ -3932,7 +3934,9 @@ qemuBuildVirtioInputDevStr(const virDomainDef *def,
>  
>      switch ((virDomainInputType) dev->type) {
>      case VIR_DOMAIN_INPUT_TYPE_MOUSE:
> -        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_MOUSE)) {
> +        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_MOUSE) ||
> +            (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
> +             !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_MOUSE_CCW))) {
>              virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
>                             _("virtio-mouse is not supported by this QEMU binary"));
>              goto error;
> @@ -3940,7 +3944,9 @@ qemuBuildVirtioInputDevStr(const virDomainDef *def,
>          virBufferAsprintf(&buf, "virtio-mouse%s,id=%s", suffix, dev->info.alias);
>          break;
>      case VIR_DOMAIN_INPUT_TYPE_TABLET:
> -        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_TABLET)) {
> +        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_TABLET) ||
> +            (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
> +             !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_TABLET_CCW))) {
>              virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
>                             _("virtio-tablet is not supported by this QEMU binary"));
>              goto error;
> @@ -3948,7 +3954,9 @@ qemuBuildVirtioInputDevStr(const virDomainDef *def,
>          virBufferAsprintf(&buf, "virtio-tablet%s,id=%s", suffix, dev->info.alias);
>          break;
>      case VIR_DOMAIN_INPUT_TYPE_KBD:
> -        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_KEYBOARD)) {
> +        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_KEYBOARD) ||
> +            (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
> +             !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_KEYBOARD_CCW))) {
>              virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
>                             _("virtio-keyboard is not supported by this QEMU binary"));
>              goto error;
> diff --git a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> index ec5c396..fda5c36 100644
> --- a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> +++ b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> @@ -147,6 +147,9 @@
>    <flag name='iscsi.password-secret'/>
>    <flag name='dump-completed'/>
>    <flag name='virtio-gpu-ccw'/>
> +  <flag name='virtio-keyboard-ccw'/>
> +  <flag name='virtio-mouse-ccw'/>
> +  <flag name='virtio-tablet-ccw'/>
>    <version>2011000</version>
>    <kvmVersion>0</kvmVersion>
>    <microcodeVersion>342885</microcodeVersion>
> 




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