Re: [PATCH 13/16] hyperv: domain undefine functions

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On 08/09/2016 08:39 AM, Jason Miesionczek wrote:
> ---
>  src/hyperv/hyperv_driver.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 72 insertions(+)
> 
> diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
> index db59ce1..bd028ed 100644
> --- a/src/hyperv/hyperv_driver.c
> +++ b/src/hyperv/hyperv_driver.c
> @@ -2205,6 +2205,76 @@ hypervDomainSetVcpus(virDomainPtr domain, unsigned int nvcpus)
>      return hypervDomainSetVcpusFlags(domain, nvcpus, 0);
>  }
>  
> +
> +static int
> +hypervDomainUndefineFlags(virDomainPtr domain, unsigned int flags ATTRIBUTE_UNUSED)
> +{
> +    int result = -1, nb_params;
> +    const char *selector = "CreationClassName=Msvm_VirtualSystemManagementService";
> +    char uuid_string[VIR_UUID_STRING_BUFLEN];
> +    hypervPrivate *priv = domain->conn->privateData;
> +    invokeXmlParam *params = NULL;
> +    eprParam eprparam;
> +    virBuffer query = VIR_BUFFER_INITIALIZER;
> +    Msvm_ComputerSystem *computerSystem = NULL;
> +
> +    virCheckFlags(0, -1);
> +
> +    virUUIDFormat(domain->uuid, uuid_string);
> +
> +    if (hypervMsvmComputerSystemFromDomain(domain, &computerSystem) < 0) {
> +        goto cleanup;
> +    }
> +
> +    /* Shutdown the VM if not disabled */
> +    if (computerSystem->data->EnabledState != MSVM_COMPUTERSYSTEM_ENABLEDSTATE_DISABLED) {
> +        if (hypervDomainShutdown(domain) < 0) {
> +            goto cleanup;
> +        }
> +    }
> +

This seems to go against the virDomainUndefineFlags API description:

 * Undefine a domain. If the domain is running, it's converted to
 * transient domain, without stopping it. If the domain is inactive,
 * the domain configuration is removed.

besides it wasn't clear to me earlier if Shutdown did anything.

> +    /* Deleting the VM */
> +
> +    /* Prepare EPR param */
> +    virBufferFreeAndReset(&query);
> +    virBufferAddLit(&query, MSVM_COMPUTERSYSTEM_WQL_SELECT);
> +    virBufferAsprintf(&query, "where Name = \"%s\"", uuid_string);
> +    eprparam.query = &query;
> +    eprparam.wmiProviderURI = ROOT_VIRTUALIZATION;
> +
> +    /* Create invokeXmlParam tab */
> +    nb_params = 1;
> +    if (VIR_ALLOC_N(params, nb_params) < 0)
> +        goto cleanup;
> +    (*params).name = "ComputerSystem";
> +    (*params).type = EPR_PARAM;
> +    (*params).param = &eprparam;

Like before is this a repeatable sequence with something else..

> +
> +    /* Destroy VM */
> +    if (hypervInvokeMethod(priv, params, nb_params, "DestroyVirtualSystem",
> +                           MSVM_VIRTUALSYSTEMMANAGEMENTSERVICE_RESOURCE_URI, selector) < 0) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Could not delete domain"));
> +        goto cleanup;
> +    }
> +
> +    result = 0;
> +
> + cleanup:
> +    VIR_FREE(params);
> +    hypervFreeObject(priv, (hypervObject *) computerSystem);
> +    virBufferFreeAndReset(&query);
> +
> +    return result;
> +}
> +
> +
> +
> +static int
> +hypervDomainUndefine(virDomainPtr domain)
> +{
> +    return hypervDomainUndefineFlags(domain, 0);
> +}
> +
>  static virHypervisorDriver hypervHypervisorDriver = {
>      .name = "Hyper-V",
>      .connectOpen = hypervConnectOpen, /* 0.9.5 */
> @@ -2258,6 +2328,8 @@ static virHypervisorDriver hypervHypervisorDriver = {
>      .domainSetMemoryFlags = hypervDomainSetMemoryFlags, /* 1.2.10 */
>      .domainSetVcpus = hypervDomainSetVcpus, /* 1.2.10 */
>      .domainSetVcpusFlags = hypervDomainSetVcpusFlags, /* 1.2.10 */
> +    .domainUndefine = hypervDomainUndefine, /* 1.2.10 */
> +    .domainUndefineFlags = hypervDomainUndefineFlags, /* 1.2.10 */

2.3.0 at the earliest


John

>  };
>  
>  /* Retrieves host system UUID  */
> 

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