Re: [Xen-devel] [PATCH v4 08/12] x86/hvm/ioreq: maintain an array of ioreq servers rather than a list

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Sep 05, 2017 at 12:37:12PM +0100, Paul Durrant wrote:
> A subsequent patch will remove the current implicit limitation on creation
> of ioreq servers which is due to the allocation of gfns for the ioreq
> structures and buffered ioreq ring.
> 
> It will therefore be necessary to introduce an explicit limit and, since
> this limit should be small, it simplifies the code to maintain an array of
> that size rather than using a list.
> 
> Also, by reserving an array slot for the default server and populating
> array slots early in create, the need to pass an 'is_default' boolean
> to sub-functions can be avoided.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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