Re: [Xen-devel] [PATCH L1TF MDS GT v1 1/3] common/grant_table: harden helpers

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.05.19 at 09:45, <nmanthey@xxxxxxxxx> wrote:
> Guests can issue grant table operations and provide guest controlled
> data to them. This data is used for memory loads in helper functions
> and macros. To avoid speculative out-of-bound accesses, we use the
> array_index_nospec macro where applicable, or the block_speculation
> macro.
> 
> This is part of the speculative hardening effort.
> 
> Signed-off-by: Norbert Manthey <nmanthey@xxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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