Re: [Xen-devel] [PATCH v2 2/2] x86/pv: Code improvements to do_update_descriptor()

["Jan Beulich" <JBeulich@xxxxxxxx>]

 >>> On 10.12.18 at 15:06, <andrew.cooper3@xxxxxxxxxx> wrote:
> * Add "uint64_t raw" to seg_desc_t to remove the opencoded uint64_t casting
>    in this function.  Change the parameter to be of type seg_desc_t.
>  * Rename the 'pa' parameter to 'gaddr', because it lives in GFN space rather
>    than physical address space.
>  * Use gfn_t and mfn_t rather than unsigned longs.
>  * Check the alignment and proposed new descriptor before taking a page
>    reference.
>  * Reuse the out label for all exit paths.
>  * Use the more flexible ACCESS_ONCE() accessor in preference to
>    write_atomic()
> 
> No expected change in behaviour.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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