[libvirt] [PATCH v2] libxl: Support PV consoles
Daniel P. Berrange
berrange at redhat.com
Fri Apr 25 16:03:16 UTC 2014
On Fri, Apr 25, 2014 at 04:54:20PM +0100, Ian Campbell wrote:
> Currently the driver only exposes the ability to connect to the serial console
> of a Xen guest, which doesn't work for a PV guest. Since for an HVM guest the
> serial devices are duplicated as consoles it is sufficient to just use the
> console devices unconditionally.
>
> Tested with the following bit of config XML:
>
> <domain type='xen'>
> ...
> <devices>
> <console type='pty'>
> <target type='xen'/>
> </console>
> </devices>
> </domain>
>
> I have observed and tested this on ARM but I believe it also applies to x86 PV
> guests.
>
> Signed-off-by: Ian Campbell <ian.campbell at citrix.com>
> Cc: Jim Fehlig <jfehlig at suse.com>
> Cc: Dario Faggioli <dario.faggioli at citrix.com>
> Cc: Clark Laughlin <clark.laughlin at linaro.org>
> ---
> v2: Just use nconsoles unconditionally, they contain serial too
> ---
> src/libxl/libxl_driver.c | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
> index a6ae8a1..535e7da 100644
> --- a/src/libxl/libxl_driver.c
> +++ b/src/libxl/libxl_driver.c
> @@ -3780,6 +3780,7 @@ libxlDomainOpenConsole(virDomainPtr dom,
> {
> virDomainObjPtr vm = NULL;
> int ret = -1;
> + libxl_console_type console_type = LIBXL_CONSOLE_TYPE_UNKNOWN;
> virDomainChrDefPtr chr = NULL;
> libxlDomainObjPrivatePtr priv;
> char *console = NULL;
> @@ -3807,8 +3808,8 @@ libxlDomainOpenConsole(virDomainPtr dom,
>
> priv = vm->privateData;
>
> - if (vm->def->nserials)
> - chr = vm->def->serials[0];
> + if (vm->def->nconsoles)
> + chr = vm->def->consoles[0];
>
> if (!chr) {
> virReportError(VIR_ERR_INTERNAL_ERROR,
> @@ -3824,7 +3825,12 @@ libxlDomainOpenConsole(virDomainPtr dom,
> goto cleanup;
> }
>
> - ret = libxl_primary_console_get_tty(priv->ctx, vm->def->id, &console);
> + console_type =
> + (chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL ?
> + LIBXL_CONSOLE_TYPE_SERIAL : LIBXL_CONSOLE_TYPE_PV);
> +
> + ret = libxl_console_get_tty(priv->ctx, vm->def->id, chr->target.port,
> + console_type, &console);
> if (ret)
> goto cleanup;
ACK to this
Regards,
Daniel
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