Adds a hook for checking whether a secondary CPU has the features used already by the kernel during early boot, based on the boot CPU.
Cc: Will Deacon <will.dea...@arm.com> Cc: Mark Rutland <mark.rutl...@arm.com> Cc: Catalin Marinas <catalin.mari...@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poul...@arm.com> --- arch/arm64/kernel/cpufeature.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index b94a198..e63da0f 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -824,6 +824,14 @@ static u64 __raw_read_system_reg(u32 sys_id) } /* + * Check for CPU features that are used in early boot + * based on the Boot CPU value. + */ +static void check_early_cpu_features(void) +{ +} + +/* * Run through the enabled system capabilities and enable() it on this CPU. * The capabilities were decided based on the available CPUs at the boot time. * Any new CPU should match the system wide status of the capability. If the @@ -836,6 +844,8 @@ void verify_local_cpu_capabilities(void) int i; const struct arm64_cpu_capabilities *caps; + check_early_cpu_features(); + /* * If we haven't computed the system capabilities, there is nothing * to verify. -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/