[v3, 1/8] powerpc/perf/hv-24x7: Fix passing of catalog version number

[Michael Ellerman]

On Thu, 2017-06-29 at 21:55:31 UTC, Thiago Jung Bauermann wrote:
> H_GET_24X7_CATALOG_PAGE needs to be passed the version number obtained from
> the first catalog page obtained previously. This is a 64 bit number, but
> create_events_from_catalog truncates it to 32-bit.
> 
> This worked on POWER8, but POWER9 actually uses the upper bits so the call
> fails with H_P3 because the hypervisor doesn't recognize the version.
> 
> This patch also adds the hcall return code to the error message, which is
> helpful when debugging the problem.
> 
> Fixes: 5c5cd7b50259 ("powerpc/perf/hv-24x7: parse catalog and populate sysfs with events")
> Reviewed-by: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman at linux.vnet.ibm.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/12bf85a71000af7419b19b5e909109

cheers