• Xiang Chen's avatar
    KVM: arm64: Fix the name of sys_reg_desc related to PMU · 9d2a55b4
    Xiang Chen authored
    For those PMU system registers defined in sys_reg_descs[], use macro
    PMU_SYS_REG() / PMU_PMEVCNTR_EL0 / PMU_PMEVTYPER_EL0 to define them, and
    later two macros call macro PMU_SYS_REG() actually.
    Currently the input parameter of PMU_SYS_REG() is another macro which is
    calculation formula of the value of system registers, so for example, if
    we want to "SYS_PMINTENSET_EL1" as the name of sys register, actually
    the name we get is as following:
    (((3) << 19) | ((0) << 16) | ((9) << 12) | ((14) << 8) | ((1) << 5))
    The name of system register is used in some tracepoints such as
    trace_kvm_sys_access(), if not set correctly, we need to analyze the
    inaccurate name to get the exact name (which also is inconsistent with
    other system registers), and also the inaccurate name occupies more space.
    
    To fix the issue, use the name as a input parameter of PMU_SYS_REG like
    MTE_REG or EL2_REG.
    Signed-off-by: default avatarXiang Chen <chenxiang66@hisilicon.com>
    Acked-by: default avatarMarc Zyngier <maz@kernel.org>
    Link: https://lore.kernel.org/r/1689305920-170523-1-git-send-email-chenxiang66@hisilicon.comSigned-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
    9d2a55b4
sys_regs.c 95.6 KB