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Commit dfa88658 authored by Diana Craciun's avatar Diana Craciun Committed by Michael Ellerman
Browse files

powerpc/fsl: Update Spectre v2 reporting 



Report branch predictor state flush as a mitigation for
Spectre variant 2.

Signed-off-by: default avatarDiana Craciun <diana.craciun@nxp.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 3bc8ea86

arch/powerpc/kernel/security.c

+4 −1
Original line number Diff line number Diff line
@@ -213,8 +213,11 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c 


		if (count_cache_flush_type == COUNT_CACHE_FLUSH_HW)

			seq_buf_printf(&s, "(hardware accelerated)");

	} else

	} else if (btb_flush_enabled) {

		seq_buf_printf(&s, "Mitigation: Branch predictor state flush");

	} else {

		seq_buf_printf(&s, "Vulnerable");

	}



	seq_buf_printf(&s, "\n");