From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Chen, Tiejun" <tiejun.chen@intel.com>
Subject: Re: [v10][PATCH 11/16] tools/libxl: detect and avoid
 conflicts with RDM
Date: Tue, 21 Jul 2015 20:04:51 +0800
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To: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Wei Liu <wei.liu2@citrix.com>, Ian Campbell <ian.campbell@citrix.com>, xen-devel@lists.xen.org
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On 2015/7/21 19:11, Ian Jackson wrote:
> Chen, Tiejun writes ("Re: [v10][PATCH 11/16] tools/libxl: detect and avoid conflicts with RDM"):
>> I would add this check at the beginning of this function:
>>
>> assert(!d_config->num_rdms && !d_config->rdms).
>
> As Ian Campbell and I have explained, that is not OK.
>
> The caller may choose to pass both some rdms and strategy=host.

If you're talking to create the domain twice I think this should be 
reasonable,

if (d_config->num_rdms) return 0;

Because RDMs are always associated to the platform so we should keep the 
same array. I mean same configuration shouldn't change this point.

Thanks
Tiejun

>
> The most obvious case is something like the following code
>
>    libxl_domain_config cfg;
>    cfg.stuff = blah;
>    cfg.rdm.strategy = HOST;
>
>    libxl_domain_create_new(&cfg, &domid);
>    libxl_domain_destroy(domid);
>    libxl_domain_create_new(&cfg, &domid);
>
> which must work (and the second domain should have identical
> configuration to the first).
>
> Ian.
>