[v3, 1/8] powerpc/perf/hv-24x7: Fix passing of catalog version number
patch-notifications at ellerman.id.au
Sun Jul 2 21:01:43 AEST 2017
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.
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