• Lorenzo Pieralisi's avatar
    ARM: kernel: update cpuinfo to print all online CPUs features · b4b8f770
    Lorenzo Pieralisi authored
    Currently, reading /proc/cpuinfo provides userspace with CPU ID of
    the CPU carrying out the read from the file. This is fine as long as all
    CPUs in the system are the same. With the advent of big.LITTLE and
    heterogenous ARM systems this approach provides user space with incorrect
    bits of information since CPU ids in the system might differ from the one
    provided by the CPU reading the file.
    
    This patch updates the cpuinfo show function so that a read from
    /proc/cpuinfo prints HW information for all online CPUs at once, mirroring
     x86 behaviour.
    Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
    Acked-by: default avatarNicolas Pitre <nico@linaro.org>
    b4b8f770
setup.c 21 KB