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| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-02-23 00:00:11 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-02-23 16:55:42 +1100 |
| commit | eb0a2d2620ae431c543963c8c7f08f597366fc60 (patch) | |
| tree | 3c6f22b1d5b888ddf3613cc660852e229b21e23f | |
| parent | 582605a429e20ae68fd0b041b2e840af296edd08 (diff) | |
| download | linux-eb0a2d2620ae431c543963c8c7f08f597366fc60.tar.bz2 | |
powerpc/powernv: 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: 6e032b350cd1 ("powerpc/powernv: Check device-tree for RFI flush settings")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 4fb21e17504a..092715b9674b 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -80,6 +80,10 @@ static void pnv_setup_rfi_flush(void) if (np && of_property_read_bool(np, "disabled")) enable--; + np = of_get_child_by_name(fw_features, "speculation-policy-favor-security"); + if (np && of_property_read_bool(np, "disabled")) + enable = 0; + of_node_put(np); of_node_put(fw_features); } |