Re: [Xen-devel] [PATCH v1 6/9] livepatch: Initial ARM64 support.

[Julien Grall <julien.grall@xxxxxxx>]

Hi Konrad,

On 15/08/16 16:17, Julien Grall wrote:
> On 15/08/2016 01:07, Konrad Rzeszutek Wilk wrote:
> > +        case R_AARCH64_ADR_PREL_PG_HI21:
> > +            val = (val & ~0xfff) - ((u64)dest & ~0xfff);
> > +            err = reloc_insn_imm(dest, val, 12, 21,
> > AARCH64_INSN_IMM_ADR);
> > +            break;
> Hmmm, I think we want to avoid the payload having
> R_AARCH64_ADR_PREL_PG_HI21* relocations due to the erratum #843419 on
> some Cortex-A53.
>
> I haven't yet looked at how you build the payload, but this may also
> affects the process to do it. I will give a look on it.
Actually, I am not sure I will have time to look at it during the next 
few weeks. Could you add a TODO for now?
Cheers,

--
Julien Grall

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