Re: [Xen-devel] [PATCH L1TF v10 8/8] common/domain: block speculative out-of-bound accesses

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 14.03.19 at 13:50, <nmanthey@xxxxxxxxx> wrote:
> When issuing a vcpu_op hypercall, guests have control over the
> vcpuid variable. In the old code, this allowed to perform
> speculative out-of-bound accesses. To block this, we make use
> of the domain_vcpu function.
> 
> 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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