[libvirt] [PATCH 13/14] qemu: switch s390/s390x default console back to serial

[Bjoern Walk]

Andrea Bolognani <abologna at redhat.com> [2017-11-15, 12:50PM +0100]:
> From: Pino Toscano <ptoscano at redhat.com>
> 
> Now that <serial> and <console> on s390/s390x behave a bit more like the
> other architectures, remove this extra differentation, and use sclp
> console by default for new guests.  New virtio consoles can still be
> added, and it is actually needed because of the limited number of
> instances for sclp and sclplm.
> 
> This reverts commit b1c88c14764e0b043a269d454a83a6ac7af34eac, whose
> reasons are not totally clear.
> 
> Signed-off-by: Pino Toscano <ptoscano at redhat.com>
> ---
>  src/qemu/qemu_domain.c                                          | 7 -------
>  tests/qemuxml2argvdata/qemuxml2argv-s390-serial-console.args    | 5 +----
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-defaultconsole.xml | 6 ++++--
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-serial-console.xml | 6 ------
>  4 files changed, 5 insertions(+), 19 deletions(-)
> 
> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index a6467ba4b..08467dc7e 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -4068,13 +4068,6 @@ static int
>  qemuDomainChrDefPostParse(virDomainChrDefPtr chr,
>                            const virDomainDef *def)
>  {
> -    /* set the default console type for S390 arches */
> -    if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
> -        chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE &&
> -        ARCH_IS_S390(def->os.arch)) {
> -        chr->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO;
> -    }
> -
>      /* Historically, isa-serial and the default matched, so in order to
>       * maintain backwards compatibility we map them here. The actual default
>       * will be picked below based on the architecture and machine type */
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-s390-serial-console.args b/tests/qemuxml2argvdata/qemuxml2argv-s390-serial-console.args
> index c405fb59e..20968f794 100644
> --- a/tests/qemuxml2argvdata/qemuxml2argv-s390-serial-console.args
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-s390-serial-console.args
> @@ -18,8 +18,5 @@ QEMU_AUDIO_DRV=none \
>  server,nowait \
>  -mon chardev=charmonitor,id=monitor,mode=readline \
>  -boot c \
> --device virtio-serial-ccw,id=virtio-serial0,devno=fe.0.0000 \
>  -chardev pty,id=charserial0 \
> --device sclpconsole,chardev=charserial0,id=serial0 \
> --chardev pty,id=charconsole1 \
> --device virtconsole,chardev=charconsole1,id=console1
> +-device sclpconsole,chardev=charserial0,id=serial0
> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-defaultconsole.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-defaultconsole.xml
> index 7eb1a765a..931e255c5 100644
> --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-defaultconsole.xml
> +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-defaultconsole.xml
> @@ -14,9 +14,11 @@
>    <on_crash>destroy</on_crash>
>    <devices>
>      <emulator>/usr/bin/qemu-system-s390x</emulator>
> -    <controller type='virtio-serial' index='0'/>
> +    <serial type='pty'>
> +      <target type='sclpconsole' port='0'/>
> +    </serial>
>      <console type='pty'>
> -      <target type='virtio' port='0'/>
> +      <target type='serial' port='0'/>
>      </console>
>      <memballoon model='none'/>
>      <panic model='s390'/>
> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-serial-console.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-serial-console.xml
> index f3364fa23..201156445 100644
> --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-serial-console.xml
> +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-s390-serial-console.xml
> @@ -14,18 +14,12 @@
>    <on_crash>destroy</on_crash>
>    <devices>
>      <emulator>/usr/bin/qemu-system-s390x</emulator>
> -    <controller type='virtio-serial' index='0'>
> -      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
> -    </controller>
>      <serial type='pty'>
>        <target type='sclpconsole' port='0'/>
>      </serial>
>      <console type='pty'>
>        <target type='serial' port='0'/>
>      </console>
> -    <console type='pty'>
> -      <target type='virtio' port='0'/>
> -    </console>
>      <memballoon model='none'/>
>      <panic model='s390'/>
>    </devices>
> -- 
> 2.13.6
> 
> --
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> 

Looks good to me.

Reviewed-by: Bjoern Walk <bwalk at linux.vnet.ibm.com>

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