All valid fields in ID_DFR0_EL1 are writable from usrespace with this change. Signed-off-by: Jing Zhang <jingzhangos@xxxxxxxxxx> --- arch/arm64/kvm/id_regs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/id_regs.c b/arch/arm64/kvm/id_regs.c index ca26fdabcf66..11d3a1d46ee5 100644 --- a/arch/arm64/kvm/id_regs.c +++ b/arch/arm64/kvm/id_regs.c @@ -548,7 +548,7 @@ const struct sys_reg_desc id_reg_descs[KVM_ARM_ID_REG_NUM] = { .set_user = set_id_dfr0_el1, .visibility = aa32_id_visibility, .reset = read_sanitised_id_dfr0_el1, - .val = ID_DFR0_EL1_PerfMon_MASK, }, + .val = GENMASK(63, 0), }, ID_HIDDEN(ID_AFR0_EL1), AA32_ID_SANITISED(ID_MMFR0_EL1), AA32_ID_SANITISED(ID_MMFR1_EL1), -- 2.40.0.348.gf938b09366-goog