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author | Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> | 2017-06-29 18:55:31 -0300 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-02 20:40:29 +1000 |
commit | 12bf85a71000af7419b19b5e90910919f36f336c (patch) | |
tree | 694b0a1292ed0da2f55f5c14068c02fdaa141e60 /arch/arm/mm/proc-arm926.S | |
parent | c07424414c28c8ae9a54803a4496e4d8718b3613 (diff) |
powerpc/perf/hv-24x7: Fix passing of catalog version number
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@linux.vnet.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/arm/mm/proc-arm926.S')
0 files changed, 0 insertions, 0 deletions