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| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-02-22 15:58:49 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-02-23 08:55:40 +0300 |
| commit | 582605a429e20ae68fd0b041b2e840af296edd08 (patch) | |
| tree | 79a6e8867876ce4336e9bd1376565c766fa52803 | |
| parent | 2f7d03e0511991f124455682cc94094eaa0981ea (diff) | |
| download | linux-582605a429e20ae68fd0b041b2e840af296edd08.tar.xz | |
powerpc/pseries: Support firmware disable of RFI flush
Some versions of firmware will have a setting that can be configured
to disable the RFI flush, add support for it.
Fixes: 8989d56878a7 ("powerpc/pseries: Query hypervisor for RFI flush settings")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 372d7ada1a0c..1a527625acf7 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -482,7 +482,8 @@ static void pseries_setup_rfi_flush(void) if (types == L1D_FLUSH_NONE) types = L1D_FLUSH_FALLBACK; - if (!(result.behaviour & H_CPU_BEHAV_L1D_FLUSH_PR)) + if ((!(result.behaviour & H_CPU_BEHAV_L1D_FLUSH_PR)) || + (!(result.behaviour & H_CPU_BEHAV_FAVOUR_SECURITY))) enable = false; } else { /* Default to fallback if case hcall is not available */ |