Re: [PATCH] xen/domain: introduce DOMID_ANY

[Andrew Cooper <andrew@xxxxxxx>]

On 16/09/2025 1:05 pm, Jan Beulich wrote:
> On 16.09.2025 19:37, dmukhin@xxxxxxx wrote:
>> --- a/xen/include/public/xen.h
>> +++ b/xen/include/public/xen.h
>> @@ -608,6 +608,9 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
>>  /* DOMID_INVALID is used to identify pages with unknown owner. */
>>  #define DOMID_INVALID        xen_mk_uint(0x7FF4)
>>  
>> +/* Domain ID allocator: search [1..DOMID_FIRST_RESERVED-1] range. */
> Considering this is an implementation detail of the hypervisor, ...
>
>> +#define DOMID_ANY            DOMID_INVALID
> ... I don't think this should go in a public header.

Except we want it for the toolstack to use, as part of preventing 0
being a magic number to XEN_DOMCTL_createdomain.

~Andrew