[libvirt] [PATCH V2 2/3] libxl: support PARAVIRT and ACPI shutdown flags
Daniel P. Berrange
berrange at redhat.com
Fri May 2 09:40:34 UTC 2014
On Thu, May 01, 2014 at 04:14:38PM -0600, Jim Fehlig wrote:
> Add support for VIR_DOMAIN_SHUTDOWN_PARAVIRT and
> VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN flags in
> libxlDomainShutdownFlags().
>
> Signed-off-by: Jim Fehlig <jfehlig at suse.com>
> ---
> src/libxl/libxl_driver.c | 34 ++++++++++++++++++++++++++--------
> 1 file changed, 26 insertions(+), 8 deletions(-)
>
> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
> index dcc3ac2..28e8512 100644
> --- a/src/libxl/libxl_driver.c
> +++ b/src/libxl/libxl_driver.c
> @@ -873,7 +873,11 @@ libxlDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
> int ret = -1;
> libxlDomainObjPrivatePtr priv;
>
> - virCheckFlags(0, -1);
> + virCheckFlags(VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN |
> + VIR_DOMAIN_SHUTDOWN_PARAVIRT, -1);
> + if (flags == 0)
> + flags = VIR_DOMAIN_SHUTDOWN_PARAVIRT |
> + VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN;
>
> if (!(vm = libxlDomObjFromDomain(dom)))
> goto cleanup;
> @@ -888,18 +892,32 @@ libxlDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
> }
>
> priv = vm->privateData;
> - if (libxl_domain_shutdown(priv->ctx, vm->def->id) != 0) {
> + if (flags & VIR_DOMAIN_SHUTDOWN_PARAVIRT) {
> + ret = libxl_domain_shutdown(priv->ctx, vm->def->id);
> + if (ret == 0)
> + goto cleanup;
> +
> + if (ret != ERROR_NOPARAVIRT) {
> + virReportError(VIR_ERR_INTERNAL_ERROR,
> + _("Failed to shutdown domain '%d' with libxenlight"),
> + vm->def->id);
> + ret = -1;
> + goto cleanup;
> + }
I think you need 'ret = -1' here too, otherwise if domain shutdown
fails, but flags does not request ACPI, then we can leak
ret == ERROR_NOPARAVIRT back to the public API.
> + }
> +
> + if (flags & VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN) {
> + ret = libxl_send_trigger(priv->ctx, vm->def->id,
> + LIBXL_TRIGGER_POWER, 0);
> + if (ret == 0)
> + goto cleanup;
> +
> virReportError(VIR_ERR_INTERNAL_ERROR,
> _("Failed to shutdown domain '%d' with libxenlight"),
> vm->def->id);
> - goto cleanup;
> + ret = -1;
> }
>
> - /* vm is marked shutoff (or removed from domains list if not persistent)
> - * in shutdown event handler.
> - */
> - ret = 0;
> -
> cleanup:
> if (vm)
> virObjectUnlock(vm);
ACK to the patch with that fix added (post 1.2.4 release of course)
Regards,
Daniel
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