[libvirt] [PATCH v4 6/6] qemu-command: introduce new vgamem attribute for QXL video device

[Peter Krempa]

On 11/24/14 16:04, Pavel Hrdina wrote:
> Add attribute to set vgamem_mb parameter of QXL device for QEMU. This
> value sets the size of VGA framebuffer for QXL device. Default value in
> QEMU is 8MB so reuse it also in libvirt to not break things.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1076098
> 
> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
> ---
>  docs/formatdomain.html.in                          |  5 ++++-
>  docs/schemas/domaincommon.rng                      |  5 +++++
>  src/conf/domain_conf.c                             | 26 ++++++++++++++++++++++
>  src/conf/domain_conf.h                             |  1 +
>  src/qemu/qemu_command.c                            | 22 ++++++++++++++++--
>  src/qemu/qemu_domain.c                             | 18 +++++++++++++++
>  .../qemuxml2argv-graphics-spice-compression.xml    |  4 ++--
>  .../qemuxml2argv-graphics-spice-qxl-vga.xml        |  4 ++--
>  .../qemuxml2argv-graphics-spice.xml                |  4 ++--
>  .../qemuxml2argv-pcihole64-q35.xml                 |  2 +-
>  tests/qemuxml2argvdata/qemuxml2argv-q35.xml        |  2 +-
>  .../qemuxml2argv-serial-spiceport.xml              |  2 +-
>  .../qemuxml2argv-video-qxl-device-vgamem.args      |  4 ++--
>  .../qemuxml2argv-video-qxl-sec-device-vgamem.args  |  6 ++---
>  tests/qemuxml2argvtest.c                           |  6 +++--
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-q35.xml    |  2 +-
>  16 files changed, 93 insertions(+), 20 deletions(-)
> 

> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index 01bf39b..49aa446 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -1176,6 +1176,24 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
>          goto cleanup;
>      }
>  
> +    if (dev->type == VIR_DOMAIN_DEVICE_VIDEO &&
> +        dev->data.video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
> +        if (dev->data.video->vgamem) {
> +            if (dev->data.video->vgamem < 1024) {
> +                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> +                               _("value for 'vgamem' must be at least 1 MiB"));

I'd add "(1024 KiB)".

> +                goto cleanup;
> +            }
> +            if (dev->data.video->vgamem != VIR_ROUND_UP_POWER_OF_TWO(dev->data.video->vgamem)) {
> +                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> +                               _("value for 'vgamem' must be power of two"));
> +                goto cleanup;
> +            }
> +        } else {
> +            dev->data.video->vgamem = 8 * 1024;
> +        }
> +    }
> +
>      ret = 0;
>  

Looks good. ACK.

Peter

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