From: Anshuman Khandual <anshuman.khand...@arm.com> [ Upstream commit 1ed1b90a0594c8c9d31e8bb8be25a2b37717dc9e ]
ID_DFR0 based TraceFilt feature should not be exposed to guests. Hence lets drop it. Cc: Catalin Marinas <catalin.mari...@arm.com> Cc: Will Deacon <w...@kernel.org> Cc: Marc Zyngier <m...@kernel.org> Cc: Mark Rutland <mark.rutl...@arm.com> Cc: James Morse <james.mo...@arm.com> Cc: Suzuki K Poulose <suzuki.poul...@arm.com> Cc: linux-arm-ker...@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Mark Rutland <mark.rutl...@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khand...@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poul...@arm.com> Link: https://lore.kernel.org/r/1589881254-10082-3-git-send-email-anshuman.khand...@arm.com Signed-off-by: Will Deacon <w...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- arch/arm64/kernel/cpufeature.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index b7d400a8921db..174aa12fb8b1f 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -272,7 +272,7 @@ static const struct arm64_ftr_bits ftr_id_pfr0[] = { }; static const struct arm64_ftr_bits ftr_id_dfr0[] = { - ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 28, 4, 0), + /* [31:28] TraceFilt */ S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 24, 4, 0xf), /* PerfMon */ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 20, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 16, 4, 0), -- 2.25.1
