[PATCH 1/2] arm64: Move handling of erratum 1418040 into C code

[Sai Prakash Ranjan]

On 2020-07-28 14:51, Marc Zyngier wrote:
> Instead of dealing with erratum 1418040 on each entry and exit,
> let's move the handling to __switch_to() instead, which has
> several advantages:
> 
> - It can be applied when it matters (switching between 32 and 64
>   bit tasks).
> - It is written in C (yay!)
> - It can rely on static keys rather than alternatives
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  arch/arm64/kernel/entry.S   | 21 ---------------------
>  arch/arm64/kernel/process.c | 29 +++++++++++++++++++++++++++++
>  2 files changed, 29 insertions(+), 21 deletions(-)
> 

Thanks Marc, tested the series on SC7180 and SM8150 SoCs which are 
affected by this erratum.

Tested-by: Sai Prakash Ranjan <saiprakash.ranjan at codeaurora.org>

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