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Commit 98df7465 authored by Michael Ellerman's avatar Michael Ellerman Committed by Greg Kroah-Hartman
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powerpc/powernv: Support firmware disable of RFI flush 



commit eb0a2d2620ae431c543963c8c7f08f597366fc60 upstream.

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: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 51cbb3b3

arch/powerpc/platforms/powernv/setup.c

+4 −0
Original line number Diff line number Diff line
@@ -79,6 +79,10 @@ 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);

	}