[PATCH v4.4 backport 15/16] powerpc/64s: Wire up cpu_show_meltdown()

[Greg KH]

On Sun, Feb 04, 2018 at 04:00:09PM +1100, Michael Ellerman wrote:
> commit fd6e440f20b1a4304553775fc55938848ff617c9 upstream.
> 
> The recent commit 87590ce6e373 ("sysfs/cpu: Add vulnerability folder")
> added a generic folder and set of files for reporting information on
> CPU vulnerabilities. One of those was for meltdown:
> 
>   /sys/devices/system/cpu/vulnerabilities/meltdown
> 
> This commit wires up that file for 64-bit Book3S powerpc.
> 
> For now we default to "Vulnerable" unless the RFI flush is enabled.
> That may not actually be true on all hardware, further patches will
> refine the reporting based on the CPU/platform etc. But for now we
> default to being pessimists.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Also applied to 4.9.y and 4.14.y, thanks.

greg k-h