Re: [PATCH] {hyper,multi}call: further limit arguments to just 5

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 28 Apr 2025, Andrew Cooper wrote:
> On 29/04/2025 9:16 am, Jan Beulich wrote:
> > Multicall compat translation and hypercall continuation handling can
> > also be shrunk to the processing of just (up to) 5 arguments.
> >
> > Take the opportunity to
> > - make exceeding the limit noisy in hypercall_create_continuation(),
> > - use speculation-safe array access in hypercall_create_continuation(),
> > - avoid a Misra C:2012 Rule 19.1 violation in xlat_multicall_entry(),
> > - further tidy xlat_multicall_entry() and __trace_multicall_call()
> >   style-wise.
> >
> > Amends: 2f531c122e95 ("x86: limit number of hypercall parameters to 5")
> > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> 
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Arm side:

Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>