From 154e93c8af38e7c9f3d2bc6e1a85c3b0945eb5fe Mon Sep 17 00:00:00 2001 From: Michael Zoran Date: Sat, 11 Feb 2017 01:18:31 -0800 Subject: [PATCH] ARM64: Force hardware emulation of deprecated instructions. raspberrypi inclusion category: feature bugzilla: 50432 -------------------------------- Signed-off-by: Fang Yafen Signed-off-by: Zheng Zengkai --- arch/arm64/kernel/armv8_deprecated.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index 7e88057269d5..989ea8fe49d0 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -182,10 +182,15 @@ static void __init register_insn_emulation(struct insn_emulation_ops *ops) switch (ops->status) { case INSN_DEPRECATED: +#if 0 insn->current_mode = INSN_EMULATE; /* Disable the HW mode if it was turned on at early boot time */ run_all_cpu_set_hw_mode(insn, false); +#else + insn->current_mode = INSN_HW; + run_all_cpu_set_hw_mode(insn, true); insn->max = INSN_HW; +#endif break; case INSN_OBSOLETE: insn->current_mode = INSN_UNDEF; -- GitLab