| Message ID | cover.1558430617.git.amit.kucheria@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | qcom: Add cpuidle to some platforms | expand |
[ Re-sending to a wider audience, hoping to catch someone's eye ] https://patchwork.kernel.org/patch/10953257/ On 21/05/2019 14:03, Marc Gonzalez wrote: > With CPUIDLE enabled, my system starts to boot, hangs a few seconds, > then silently reboots (killed by FW) Using extremely high-tech debugging tools (i.e. spraying printk left and right) I traced this crash down to: psci_cpu_suspend_enter: 435 psci_cpu_suspend: 171 psci_cpu_suspend: __invoke_psci_fn_smc c4000001 __invoke_psci_fn_smc: id=c4000001 3 0 0 /*** execution never returns from arm_smccc_smc() ***/ The following dmesg log caught my eye, and might be relevant: ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware Is that bad, doctor? I don't think it would explain the crash though... If I revert the patch, psci_cpu_suspend_enter() is never called, so we don't tickle the arm_smccc_smc() monster. Could it be that this FW doesn't support PSCI? Regards.
On 22/05/2019 10:17, Marc Gonzalez wrote: > [ Re-sending to a wider audience, hoping to catch someone's eye ] > > https://patchwork.kernel.org/patch/10953257/ > > On 21/05/2019 14:03, Marc Gonzalez wrote: > >> With CPUIDLE enabled, my system starts to boot, hangs a few seconds, >> then silently reboots (killed by FW) > > Using extremely high-tech debugging tools (i.e. spraying printk left and right) > I traced this crash down to: > > psci_cpu_suspend_enter: 435 > psci_cpu_suspend: 171 > psci_cpu_suspend: __invoke_psci_fn_smc c4000001 > __invoke_psci_fn_smc: id=c4000001 3 0 0 > /*** execution never returns from arm_smccc_smc() ***/ > > > The following dmesg log caught my eye, and might be relevant: > > ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware > > Is that bad, doctor? I don't think it would explain the crash though... It doesn't explain it. It is bad though: your vendor doesn't tell the kernel about the HW being free of Spectre-v2, and doesn't provide a mitigation either. Hopefully, this is a responsible vendor that will provide you with a firmware update that fixes it. > > > If I revert the patch, psci_cpu_suspend_enter() is never called, > so we don't tickle the arm_smccc_smc() monster. > > Could it be that this FW doesn't support PSCI? Probably not in as well as it could, at least for CPU suspend. M.
On 22/05/2019 11:17, Marc Gonzalez wrote: > Could it be that this FW doesn't support PSCI? I believe it works now. Tested-by: Marc Gonzalez <marc.w.gonzalez@free.fr> As pointed out by Niklas in v1: arm,psci-suspend-param needs to be 0x40000003 not 0x3 (If either local-timer-stop is removed, bad things happen.) Below is the diff with next-20190521. diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi index 412195b9794c..224f84e39204 100644 --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi @@ -78,6 +78,7 @@ compatible = "arm,armv8"; reg = <0x0 0x0>; enable-method = "psci"; + cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; next-level-cache = <&L2_0>; L2_0: l2-cache { compatible = "arm,arch-cache"; @@ -96,6 +97,7 @@ compatible = "arm,armv8"; reg = <0x0 0x1>; enable-method = "psci"; + cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; next-level-cache = <&L2_0>; L1_I_1: l1-icache { compatible = "arm,arch-cache"; @@ -110,6 +112,7 @@ compatible = "arm,armv8"; reg = <0x0 0x2>; enable-method = "psci"; + cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; next-level-cache = <&L2_0>; L1_I_2: l1-icache { compatible = "arm,arch-cache"; @@ -124,6 +127,7 @@ compatible = "arm,armv8"; reg = <0x0 0x3>; enable-method = "psci"; + cpu-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; next-level-cache = <&L2_0>; L1_I_3: l1-icache { compatible = "arm,arch-cache"; @@ -138,6 +142,7 @@ compatible = "arm,armv8"; reg = <0x0 0x100>; enable-method = "psci"; + cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; next-level-cache = <&L2_1>; L2_1: l2-cache { compatible = "arm,arch-cache"; @@ -156,6 +161,7 @@ compatible = "arm,armv8"; reg = <0x0 0x101>; enable-method = "psci"; + cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; next-level-cache = <&L2_1>; L1_I_101: l1-icache { compatible = "arm,arch-cache"; @@ -170,6 +176,7 @@ compatible = "arm,armv8"; reg = <0x0 0x102>; enable-method = "psci"; + cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; next-level-cache = <&L2_1>; L1_I_102: l1-icache { compatible = "arm,arch-cache"; @@ -184,6 +191,7 @@ compatible = "arm,armv8"; reg = <0x0 0x103>; enable-method = "psci"; + cpu-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; next-level-cache = <&L2_1>; L1_I_103: l1-icache { compatible = "arm,arch-cache"; @@ -230,6 +238,48 @@ }; }; }; + + idle-states { + entry-method = "psci"; + + LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 { + compatible = "arm,idle-state"; + idle-state-name = "little-retention"; + arm,psci-suspend-param = <0x00000002>; + entry-latency-us = <43>; + exit-latency-us = <86>; + min-residency-us = <200>; + }; + + LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 { + compatible = "arm,idle-state"; + idle-state-name = "little-power-collapse"; + arm,psci-suspend-param = <0x40000003>; + entry-latency-us = <100>; + exit-latency-us = <612>; + min-residency-us = <1000>; + local-timer-stop; + }; + + BIG_CPU_SLEEP_0: cpu-sleep-1-0 { + compatible = "arm,idle-state"; + idle-state-name = "big-retention"; + arm,psci-suspend-param = <0x00000002>; + entry-latency-us = <41>; + exit-latency-us = <82>; + min-residency-us = <200>; + }; + + BIG_CPU_SLEEP_1: cpu-sleep-1-1 { + compatible = "arm,idle-state"; + idle-state-name = "big-power-collapse"; + arm,psci-suspend-param = <0x40000003>; + entry-latency-us = <100>; + exit-latency-us = <525>; + min-residency-us = <1000>; + local-timer-stop; + }; + }; }; firmware { # for F in $(find /sys/devices/system/cpu -type f); do echo $F; cat $F; done /sys/devices/system/cpu/cpuidle/current_governor_ro menu /sys/devices/system/cpu/cpuidle/current_driver arm_idle /sys/devices/system/cpu/uevent /sys/devices/system/cpu/cpu7/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu7/cpuidle/state1/above 1 /sys/devices/system/cpu/cpu7/cpuidle/state1/time 15749 /sys/devices/system/cpu/cpu7/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu7/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu7/cpuidle/state1/latency 123 /sys/devices/system/cpu/cpu7/cpuidle/state1/usage 19 /sys/devices/system/cpu/cpu7/cpuidle/state1/desc big-retention /sys/devices/system/cpu/cpu7/cpuidle/state1/below 6 /sys/devices/system/cpu/cpu7/cpuidle/state1/name cpu-sleep-1-0 /sys/devices/system/cpu/cpu7/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu7/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu7/cpuidle/state2/above 8 /sys/devices/system/cpu/cpu7/cpuidle/state2/time 616012492 /sys/devices/system/cpu/cpu7/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu7/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu7/cpuidle/state2/latency 625 /sys/devices/system/cpu/cpu7/cpuidle/state2/usage 120 /sys/devices/system/cpu/cpu7/cpuidle/state2/desc big-power-collapse /sys/devices/system/cpu/cpu7/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu7/cpuidle/state2/name cpu-sleep-1-1 /sys/devices/system/cpu/cpu7/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu7/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu7/cpuidle/state0/time 29077 /sys/devices/system/cpu/cpu7/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu7/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu7/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu7/cpuidle/state0/usage 11 /sys/devices/system/cpu/cpu7/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu7/cpuidle/state0/below 8 /sys/devices/system/cpu/cpu7/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu7/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@103 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu7/power/runtime_active_time 0 /sys/devices/system/cpu/cpu7/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu7/power/runtime_status unsupported /sys/devices/system/cpu/cpu7/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu7/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu7/power/control auto /sys/devices/system/cpu/cpu7/topology/physical_package_id 1 /sys/devices/system/cpu/cpu7/topology/core_siblings f0 /sys/devices/system/cpu/cpu7/topology/core_siblings_list 4-7 /sys/devices/system/cpu/cpu7/topology/thread_siblings_list 7 /sys/devices/system/cpu/cpu7/topology/core_id 3 /sys/devices/system/cpu/cpu7/topology/thread_siblings 80 /sys/devices/system/cpu/cpu7/cpu_capacity 1024 /sys/devices/system/cpu/cpu7/cache/uevent /sys/devices/system/cpu/cpu7/cache/index2/uevent /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_list 4-7 /sys/devices/system/cpu/cpu7/cache/index2/type Unified /sys/devices/system/cpu/cpu7/cache/index2/level 2 /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map f0 /sys/devices/system/cpu/cpu7/cache/index0/uevent /sys/devices/system/cpu/cpu7/cache/index0/shared_cpu_list 7 /sys/devices/system/cpu/cpu7/cache/index0/type Data /sys/devices/system/cpu/cpu7/cache/index0/level 1 /sys/devices/system/cpu/cpu7/cache/index0/shared_cpu_map 80 /sys/devices/system/cpu/cpu7/cache/index1/uevent /sys/devices/system/cpu/cpu7/cache/index1/shared_cpu_list 7 /sys/devices/system/cpu/cpu7/cache/index1/type Instruction /sys/devices/system/cpu/cpu7/cache/index1/level 1 /sys/devices/system/cpu/cpu7/cache/index1/shared_cpu_map 80 /sys/devices/system/cpu/cpu7/regs/identification/revidr_el1 0x0000000000000001 /sys/devices/system/cpu/cpu7/regs/identification/midr_el1 0x0000000051af8001 /sys/devices/system/cpu/cpu5/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu5/cpuidle/state1/above 0 /sys/devices/system/cpu/cpu5/cpuidle/state1/time 19922 /sys/devices/system/cpu/cpu5/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu5/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu5/cpuidle/state1/latency 123 /sys/devices/system/cpu/cpu5/cpuidle/state1/usage 28 /sys/devices/system/cpu/cpu5/cpuidle/state1/desc big-retention /sys/devices/system/cpu/cpu5/cpuidle/state1/below 5 /sys/devices/system/cpu/cpu5/cpuidle/state1/name cpu-sleep-1-0 /sys/devices/system/cpu/cpu5/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu5/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu5/cpuidle/state2/above 12 /sys/devices/system/cpu/cpu5/cpuidle/state2/time 616088023 /sys/devices/system/cpu/cpu5/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu5/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu5/cpuidle/state2/latency 625 /sys/devices/system/cpu/cpu5/cpuidle/state2/usage 248 /sys/devices/system/cpu/cpu5/cpuidle/state2/desc big-power-collapse /sys/devices/system/cpu/cpu5/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu5/cpuidle/state2/name cpu-sleep-1-1 /sys/devices/system/cpu/cpu5/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu5/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu5/cpuidle/state0/time 30023 /sys/devices/system/cpu/cpu5/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu5/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu5/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu5/cpuidle/state0/usage 16 /sys/devices/system/cpu/cpu5/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu5/cpuidle/state0/below 10 /sys/devices/system/cpu/cpu5/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu5/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@101 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu5/power/runtime_active_time 0 /sys/devices/system/cpu/cpu5/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu5/power/runtime_status unsupported /sys/devices/system/cpu/cpu5/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu5/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu5/power/control auto /sys/devices/system/cpu/cpu5/topology/physical_package_id 1 /sys/devices/system/cpu/cpu5/topology/core_siblings f0 /sys/devices/system/cpu/cpu5/topology/core_siblings_list 4-7 /sys/devices/system/cpu/cpu5/topology/thread_siblings_list 5 /sys/devices/system/cpu/cpu5/topology/core_id 1 /sys/devices/system/cpu/cpu5/topology/thread_siblings 20 /sys/devices/system/cpu/cpu5/cpu_capacity 1024 /sys/devices/system/cpu/cpu5/cache/uevent /sys/devices/system/cpu/cpu5/cache/index2/uevent /sys/devices/system/cpu/cpu5/cache/index2/shared_cpu_list 4-7 /sys/devices/system/cpu/cpu5/cache/index2/type Unified /sys/devices/system/cpu/cpu5/cache/index2/level 2 /sys/devices/system/cpu/cpu5/cache/index2/shared_cpu_map f0 /sys/devices/system/cpu/cpu5/cache/index0/uevent /sys/devices/system/cpu/cpu5/cache/index0/shared_cpu_list 5 /sys/devices/system/cpu/cpu5/cache/index0/type Data /sys/devices/system/cpu/cpu5/cache/index0/level 1 /sys/devices/system/cpu/cpu5/cache/index0/shared_cpu_map 20 /sys/devices/system/cpu/cpu5/cache/index1/uevent /sys/devices/system/cpu/cpu5/cache/index1/shared_cpu_list 5 /sys/devices/system/cpu/cpu5/cache/index1/type Instruction /sys/devices/system/cpu/cpu5/cache/index1/level 1 /sys/devices/system/cpu/cpu5/cache/index1/shared_cpu_map 20 /sys/devices/system/cpu/cpu5/regs/identification/revidr_el1 0x0000000000000001 /sys/devices/system/cpu/cpu5/regs/identification/midr_el1 0x0000000051af8001 /sys/devices/system/cpu/possible 0-7 /sys/devices/system/cpu/offline /sys/devices/system/cpu/present 0-7 /sys/devices/system/cpu/power/runtime_active_time 0 /sys/devices/system/cpu/power/runtime_status unsupported /sys/devices/system/cpu/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/power/runtime_suspended_time 0 /sys/devices/system/cpu/power/control auto /sys/devices/system/cpu/cpu3/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu3/cpuidle/state1/above 0 /sys/devices/system/cpu/cpu3/cpuidle/state1/time 7453 /sys/devices/system/cpu/cpu3/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu3/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu3/cpuidle/state1/latency 129 /sys/devices/system/cpu/cpu3/cpuidle/state1/usage 10 /sys/devices/system/cpu/cpu3/cpuidle/state1/desc little-retention /sys/devices/system/cpu/cpu3/cpuidle/state1/below 2 /sys/devices/system/cpu/cpu3/cpuidle/state1/name cpu-sleep-0-0 /sys/devices/system/cpu/cpu3/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu3/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu3/cpuidle/state2/above 8 /sys/devices/system/cpu/cpu3/cpuidle/state2/time 616684999 /sys/devices/system/cpu/cpu3/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu3/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu3/cpuidle/state2/latency 712 /sys/devices/system/cpu/cpu3/cpuidle/state2/usage 298 /sys/devices/system/cpu/cpu3/cpuidle/state2/desc little-power-collapse /sys/devices/system/cpu/cpu3/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu3/cpuidle/state2/name cpu-sleep-0-1 /sys/devices/system/cpu/cpu3/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu3/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu3/cpuidle/state0/time 29256 /sys/devices/system/cpu/cpu3/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu3/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu3/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu3/cpuidle/state0/usage 11 /sys/devices/system/cpu/cpu3/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu3/cpuidle/state0/below 8 /sys/devices/system/cpu/cpu3/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu3/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@3 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu3/power/runtime_active_time 0 /sys/devices/system/cpu/cpu3/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu3/power/runtime_status unsupported /sys/devices/system/cpu/cpu3/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu3/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu3/power/control auto /sys/devices/system/cpu/cpu3/topology/physical_package_id 0 /sys/devices/system/cpu/cpu3/topology/core_siblings 0f /sys/devices/system/cpu/cpu3/topology/core_siblings_list 0-3 /sys/devices/system/cpu/cpu3/topology/thread_siblings_list 3 /sys/devices/system/cpu/cpu3/topology/core_id 3 /sys/devices/system/cpu/cpu3/topology/thread_siblings 08 /sys/devices/system/cpu/cpu3/cpu_capacity 1024 /sys/devices/system/cpu/cpu3/cache/uevent /sys/devices/system/cpu/cpu3/cache/index2/uevent /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_list 0-3 /sys/devices/system/cpu/cpu3/cache/index2/type Unified /sys/devices/system/cpu/cpu3/cache/index2/level 2 /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map 0f /sys/devices/system/cpu/cpu3/cache/index0/uevent /sys/devices/system/cpu/cpu3/cache/index0/shared_cpu_list 3 /sys/devices/system/cpu/cpu3/cache/index0/type Data /sys/devices/system/cpu/cpu3/cache/index0/level 1 /sys/devices/system/cpu/cpu3/cache/index0/shared_cpu_map 08 /sys/devices/system/cpu/cpu3/cache/index1/uevent /sys/devices/system/cpu/cpu3/cache/index1/shared_cpu_list 3 /sys/devices/system/cpu/cpu3/cache/index1/type Instruction /sys/devices/system/cpu/cpu3/cache/index1/level 1 /sys/devices/system/cpu/cpu3/cache/index1/shared_cpu_map 08 /sys/devices/system/cpu/cpu3/regs/identification/revidr_el1 0x0000000000000180 /sys/devices/system/cpu/cpu3/regs/identification/midr_el1 0x0000000051af8014 /sys/devices/system/cpu/online 0-7 /sys/devices/system/cpu/cpu1/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu1/cpuidle/state1/above 3 /sys/devices/system/cpu/cpu1/cpuidle/state1/time 8494 /sys/devices/system/cpu/cpu1/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu1/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu1/cpuidle/state1/latency 129 /sys/devices/system/cpu/cpu1/cpuidle/state1/usage 15 /sys/devices/system/cpu/cpu1/cpuidle/state1/desc little-retention /sys/devices/system/cpu/cpu1/cpuidle/state1/below 0 /sys/devices/system/cpu/cpu1/cpuidle/state1/name cpu-sleep-0-0 /sys/devices/system/cpu/cpu1/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu1/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu1/cpuidle/state2/above 6 /sys/devices/system/cpu/cpu1/cpuidle/state2/time 617122679 /sys/devices/system/cpu/cpu1/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu1/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu1/cpuidle/state2/latency 712 /sys/devices/system/cpu/cpu1/cpuidle/state2/usage 394 /sys/devices/system/cpu/cpu1/cpuidle/state2/desc little-power-collapse /sys/devices/system/cpu/cpu1/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu1/cpuidle/state2/name cpu-sleep-0-1 /sys/devices/system/cpu/cpu1/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu1/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu1/cpuidle/state0/time 4704 /sys/devices/system/cpu/cpu1/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu1/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu1/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu1/cpuidle/state0/usage 8 /sys/devices/system/cpu/cpu1/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu1/cpuidle/state0/below 4 /sys/devices/system/cpu/cpu1/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu1/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@1 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu1/power/runtime_active_time 0 /sys/devices/system/cpu/cpu1/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu1/power/runtime_status unsupported /sys/devices/system/cpu/cpu1/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu1/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu1/power/control auto /sys/devices/system/cpu/cpu1/topology/physical_package_id 0 /sys/devices/system/cpu/cpu1/topology/core_siblings 0f /sys/devices/system/cpu/cpu1/topology/core_siblings_list 0-3 /sys/devices/system/cpu/cpu1/topology/thread_siblings_list 1 /sys/devices/system/cpu/cpu1/topology/core_id 1 /sys/devices/system/cpu/cpu1/topology/thread_siblings 02 /sys/devices/system/cpu/cpu1/cpu_capacity 1024 /sys/devices/system/cpu/cpu1/cache/uevent /sys/devices/system/cpu/cpu1/cache/index2/uevent /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_list 0-3 /sys/devices/system/cpu/cpu1/cache/index2/type Unified /sys/devices/system/cpu/cpu1/cache/index2/level 2 /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map 0f /sys/devices/system/cpu/cpu1/cache/index0/uevent /sys/devices/system/cpu/cpu1/cache/index0/shared_cpu_list 1 /sys/devices/system/cpu/cpu1/cache/index0/type Data /sys/devices/system/cpu/cpu1/cache/index0/level 1 /sys/devices/system/cpu/cpu1/cache/index0/shared_cpu_map 02 /sys/devices/system/cpu/cpu1/cache/index1/uevent /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_list 1 /sys/devices/system/cpu/cpu1/cache/index1/type Instruction /sys/devices/system/cpu/cpu1/cache/index1/level 1 /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map 02 /sys/devices/system/cpu/cpu1/regs/identification/revidr_el1 0x0000000000000180 /sys/devices/system/cpu/cpu1/regs/identification/midr_el1 0x0000000051af8014 /sys/devices/system/cpu/vulnerabilities/spectre_v2 Vulnerable /sys/devices/system/cpu/vulnerabilities/mds Not affected /sys/devices/system/cpu/vulnerabilities/l1tf Not affected /sys/devices/system/cpu/vulnerabilities/spec_store_bypass Vulnerable /sys/devices/system/cpu/vulnerabilities/spectre_v1 Mitigation: __user pointer sanitization /sys/devices/system/cpu/vulnerabilities/meltdown Mitigation: PTI /sys/devices/system/cpu/cpu6/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu6/cpuidle/state1/above 0 /sys/devices/system/cpu/cpu6/cpuidle/state1/time 7186 /sys/devices/system/cpu/cpu6/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu6/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu6/cpuidle/state1/latency 123 /sys/devices/system/cpu/cpu6/cpuidle/state1/usage 9 /sys/devices/system/cpu/cpu6/cpuidle/state1/desc big-retention /sys/devices/system/cpu/cpu6/cpuidle/state1/below 2 /sys/devices/system/cpu/cpu6/cpuidle/state1/name cpu-sleep-1-0 /sys/devices/system/cpu/cpu6/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu6/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu6/cpuidle/state2/above 4 /sys/devices/system/cpu/cpu6/cpuidle/state2/time 617440536 /sys/devices/system/cpu/cpu6/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu6/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu6/cpuidle/state2/latency 625 /sys/devices/system/cpu/cpu6/cpuidle/state2/usage 385 /sys/devices/system/cpu/cpu6/cpuidle/state2/desc big-power-collapse /sys/devices/system/cpu/cpu6/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu6/cpuidle/state2/name cpu-sleep-1-1 /sys/devices/system/cpu/cpu6/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu6/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu6/cpuidle/state0/time 28990 /sys/devices/system/cpu/cpu6/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu6/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu6/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu6/cpuidle/state0/usage 10 /sys/devices/system/cpu/cpu6/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu6/cpuidle/state0/below 8 /sys/devices/system/cpu/cpu6/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu6/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@102 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu6/power/runtime_active_time 0 /sys/devices/system/cpu/cpu6/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu6/power/runtime_status unsupported /sys/devices/system/cpu/cpu6/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu6/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu6/power/control auto /sys/devices/system/cpu/cpu6/topology/physical_package_id 1 /sys/devices/system/cpu/cpu6/topology/core_siblings f0 /sys/devices/system/cpu/cpu6/topology/core_siblings_list 4-7 /sys/devices/system/cpu/cpu6/topology/thread_siblings_list 6 /sys/devices/system/cpu/cpu6/topology/core_id 2 /sys/devices/system/cpu/cpu6/topology/thread_siblings 40 /sys/devices/system/cpu/cpu6/cpu_capacity 1024 /sys/devices/system/cpu/cpu6/cache/uevent /sys/devices/system/cpu/cpu6/cache/index2/uevent /sys/devices/system/cpu/cpu6/cache/index2/shared_cpu_list 4-7 /sys/devices/system/cpu/cpu6/cache/index2/type Unified /sys/devices/system/cpu/cpu6/cache/index2/level 2 /sys/devices/system/cpu/cpu6/cache/index2/shared_cpu_map f0 /sys/devices/system/cpu/cpu6/cache/index0/uevent /sys/devices/system/cpu/cpu6/cache/index0/shared_cpu_list 6 /sys/devices/system/cpu/cpu6/cache/index0/type Data /sys/devices/system/cpu/cpu6/cache/index0/level 1 /sys/devices/system/cpu/cpu6/cache/index0/shared_cpu_map 40 /sys/devices/system/cpu/cpu6/cache/index1/uevent /sys/devices/system/cpu/cpu6/cache/index1/shared_cpu_list 6 /sys/devices/system/cpu/cpu6/cache/index1/type Instruction /sys/devices/system/cpu/cpu6/cache/index1/level 1 /sys/devices/system/cpu/cpu6/cache/index1/shared_cpu_map 40 /sys/devices/system/cpu/cpu6/regs/identification/revidr_el1 0x0000000000000001 /sys/devices/system/cpu/cpu6/regs/identification/midr_el1 0x0000000051af8001 /sys/devices/system/cpu/cpu4/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu4/cpuidle/state1/above 4 /sys/devices/system/cpu/cpu4/cpuidle/state1/time 48576 /sys/devices/system/cpu/cpu4/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu4/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu4/cpuidle/state1/latency 123 /sys/devices/system/cpu/cpu4/cpuidle/state1/usage 58 /sys/devices/system/cpu/cpu4/cpuidle/state1/desc big-retention /sys/devices/system/cpu/cpu4/cpuidle/state1/below 15 /sys/devices/system/cpu/cpu4/cpuidle/state1/name cpu-sleep-1-0 /sys/devices/system/cpu/cpu4/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu4/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu4/cpuidle/state2/above 19 /sys/devices/system/cpu/cpu4/cpuidle/state2/time 617566283 /sys/devices/system/cpu/cpu4/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu4/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu4/cpuidle/state2/latency 625 /sys/devices/system/cpu/cpu4/cpuidle/state2/usage 515 /sys/devices/system/cpu/cpu4/cpuidle/state2/desc big-power-collapse /sys/devices/system/cpu/cpu4/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu4/cpuidle/state2/name cpu-sleep-1-1 /sys/devices/system/cpu/cpu4/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu4/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu4/cpuidle/state0/time 33524 /sys/devices/system/cpu/cpu4/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu4/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu4/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu4/cpuidle/state0/usage 19 /sys/devices/system/cpu/cpu4/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu4/cpuidle/state0/below 9 /sys/devices/system/cpu/cpu4/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu4/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@100 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu4/power/runtime_active_time 0 /sys/devices/system/cpu/cpu4/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu4/power/runtime_status unsupported /sys/devices/system/cpu/cpu4/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu4/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu4/power/control auto /sys/devices/system/cpu/cpu4/topology/physical_package_id 1 /sys/devices/system/cpu/cpu4/topology/core_siblings f0 /sys/devices/system/cpu/cpu4/topology/core_siblings_list 4-7 /sys/devices/system/cpu/cpu4/topology/thread_siblings_list 4 /sys/devices/system/cpu/cpu4/topology/core_id 0 /sys/devices/system/cpu/cpu4/topology/thread_siblings 10 /sys/devices/system/cpu/cpu4/cpu_capacity 1024 /sys/devices/system/cpu/cpu4/cache/uevent /sys/devices/system/cpu/cpu4/cache/index2/uevent /sys/devices/system/cpu/cpu4/cache/index2/shared_cpu_list 4-7 /sys/devices/system/cpu/cpu4/cache/index2/type Unified /sys/devices/system/cpu/cpu4/cache/index2/level 2 /sys/devices/system/cpu/cpu4/cache/index2/shared_cpu_map f0 /sys/devices/system/cpu/cpu4/cache/index0/uevent /sys/devices/system/cpu/cpu4/cache/index0/shared_cpu_list 4 /sys/devices/system/cpu/cpu4/cache/index0/type Data /sys/devices/system/cpu/cpu4/cache/index0/level 1 /sys/devices/system/cpu/cpu4/cache/index0/shared_cpu_map 10 /sys/devices/system/cpu/cpu4/cache/index1/uevent /sys/devices/system/cpu/cpu4/cache/index1/shared_cpu_list 4 /sys/devices/system/cpu/cpu4/cache/index1/type Instruction /sys/devices/system/cpu/cpu4/cache/index1/level 1 /sys/devices/system/cpu/cpu4/cache/index1/shared_cpu_map 10 /sys/devices/system/cpu/cpu4/regs/identification/revidr_el1 0x0000000000000001 /sys/devices/system/cpu/cpu4/regs/identification/midr_el1 0x0000000051af8001 /sys/devices/system/cpu/isolated /sys/devices/system/cpu/kernel_max 255 /sys/devices/system/cpu/cpu2/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu2/cpuidle/state1/above 27 /sys/devices/system/cpu/cpu2/cpuidle/state1/time 80485 /sys/devices/system/cpu/cpu2/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu2/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu2/cpuidle/state1/latency 129 /sys/devices/system/cpu/cpu2/cpuidle/state1/usage 142 /sys/devices/system/cpu/cpu2/cpuidle/state1/desc little-retention /sys/devices/system/cpu/cpu2/cpuidle/state1/below 6 /sys/devices/system/cpu/cpu2/cpuidle/state1/name cpu-sleep-0-0 /sys/devices/system/cpu/cpu2/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu2/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu2/cpuidle/state2/above 14 /sys/devices/system/cpu/cpu2/cpuidle/state2/time 617916929 /sys/devices/system/cpu/cpu2/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu2/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu2/cpuidle/state2/latency 712 /sys/devices/system/cpu/cpu2/cpuidle/state2/usage 614 /sys/devices/system/cpu/cpu2/cpuidle/state2/desc little-power-collapse /sys/devices/system/cpu/cpu2/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu2/cpuidle/state2/name cpu-sleep-0-1 /sys/devices/system/cpu/cpu2/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu2/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu2/cpuidle/state0/time 36601 /sys/devices/system/cpu/cpu2/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu2/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu2/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu2/cpuidle/state0/usage 49 /sys/devices/system/cpu/cpu2/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu2/cpuidle/state0/below 20 /sys/devices/system/cpu/cpu2/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu2/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@2 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu2/power/runtime_active_time 0 /sys/devices/system/cpu/cpu2/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu2/power/runtime_status unsupported /sys/devices/system/cpu/cpu2/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu2/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu2/power/control auto /sys/devices/system/cpu/cpu2/topology/physical_package_id 0 /sys/devices/system/cpu/cpu2/topology/core_siblings 0f /sys/devices/system/cpu/cpu2/topology/core_siblings_list 0-3 /sys/devices/system/cpu/cpu2/topology/thread_siblings_list 2 /sys/devices/system/cpu/cpu2/topology/core_id 2 /sys/devices/system/cpu/cpu2/topology/thread_siblings 04 /sys/devices/system/cpu/cpu2/cpu_capacity 1024 /sys/devices/system/cpu/cpu2/cache/uevent /sys/devices/system/cpu/cpu2/cache/index2/uevent /sys/devices/system/cpu/cpu2/cache/index2/shared_cpu_list 0-3 /sys/devices/system/cpu/cpu2/cache/index2/type Unified /sys/devices/system/cpu/cpu2/cache/index2/level 2 /sys/devices/system/cpu/cpu2/cache/index2/shared_cpu_map 0f /sys/devices/system/cpu/cpu2/cache/index0/uevent /sys/devices/system/cpu/cpu2/cache/index0/shared_cpu_list 2 /sys/devices/system/cpu/cpu2/cache/index0/type Data /sys/devices/system/cpu/cpu2/cache/index0/level 1 /sys/devices/system/cpu/cpu2/cache/index0/shared_cpu_map 04 /sys/devices/system/cpu/cpu2/cache/index1/uevent /sys/devices/system/cpu/cpu2/cache/index1/shared_cpu_list 2 /sys/devices/system/cpu/cpu2/cache/index1/type Instruction /sys/devices/system/cpu/cpu2/cache/index1/level 1 /sys/devices/system/cpu/cpu2/cache/index1/shared_cpu_map 04 /sys/devices/system/cpu/cpu2/regs/identification/revidr_el1 0x0000000000000180 /sys/devices/system/cpu/cpu2/regs/identification/midr_el1 0x0000000051af8014 /sys/devices/system/cpu/cpu0/cpuidle/state1/disable 0 /sys/devices/system/cpu/cpu0/cpuidle/state1/above 42 /sys/devices/system/cpu/cpu0/cpuidle/state1/time 363386 /sys/devices/system/cpu/cpu0/cpuidle/state1/power 0 /sys/devices/system/cpu/cpu0/cpuidle/state1/residency 200 /sys/devices/system/cpu/cpu0/cpuidle/state1/latency 129 /sys/devices/system/cpu/cpu0/cpuidle/state1/usage 416 /sys/devices/system/cpu/cpu0/cpuidle/state1/desc little-retention /sys/devices/system/cpu/cpu0/cpuidle/state1/below 117 /sys/devices/system/cpu/cpu0/cpuidle/state1/name cpu-sleep-0-0 /sys/devices/system/cpu/cpu0/cpuidle/driver/name arm_idle /sys/devices/system/cpu/cpu0/cpuidle/state2/disable 0 /sys/devices/system/cpu/cpu0/cpuidle/state2/above 189 /sys/devices/system/cpu/cpu0/cpuidle/state2/time 616567065 /sys/devices/system/cpu/cpu0/cpuidle/state2/power 0 /sys/devices/system/cpu/cpu0/cpuidle/state2/residency 1000 /sys/devices/system/cpu/cpu0/cpuidle/state2/latency 712 /sys/devices/system/cpu/cpu0/cpuidle/state2/usage 1661 /sys/devices/system/cpu/cpu0/cpuidle/state2/desc little-power-collapse /sys/devices/system/cpu/cpu0/cpuidle/state2/below 0 /sys/devices/system/cpu/cpu0/cpuidle/state2/name cpu-sleep-0-1 /sys/devices/system/cpu/cpu0/cpuidle/state0/disable 0 /sys/devices/system/cpu/cpu0/cpuidle/state0/above 0 /sys/devices/system/cpu/cpu0/cpuidle/state0/time 7123 /sys/devices/system/cpu/cpu0/cpuidle/state0/power 4294967295 /sys/devices/system/cpu/cpu0/cpuidle/state0/residency 1 /sys/devices/system/cpu/cpu0/cpuidle/state0/latency 1 /sys/devices/system/cpu/cpu0/cpuidle/state0/usage 53 /sys/devices/system/cpu/cpu0/cpuidle/state0/desc ARM WFI /sys/devices/system/cpu/cpu0/cpuidle/state0/below 14 /sys/devices/system/cpu/cpu0/cpuidle/state0/name WFI /sys/devices/system/cpu/cpu0/uevent OF_NAME=cpu OF_FULLNAME=/cpus/cpu@0 OF_TYPE=cpu OF_COMPATIBLE_0=arm,armv8 OF_COMPATIBLE_N=1 MODALIAS=cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B /sys/devices/system/cpu/cpu0/power/runtime_active_time 0 /sys/devices/system/cpu/cpu0/power/pm_qos_resume_latency_us 0 /sys/devices/system/cpu/cpu0/power/runtime_status unsupported /sys/devices/system/cpu/cpu0/power/autosuspend_delay_ms cat: read error: Input/output error /sys/devices/system/cpu/cpu0/power/runtime_suspended_time 0 /sys/devices/system/cpu/cpu0/power/control auto /sys/devices/system/cpu/cpu0/topology/physical_package_id 0 /sys/devices/system/cpu/cpu0/topology/core_siblings 0f /sys/devices/system/cpu/cpu0/topology/core_siblings_list 0-3 /sys/devices/system/cpu/cpu0/topology/thread_siblings_list 0 /sys/devices/system/cpu/cpu0/topology/core_id 0 /sys/devices/system/cpu/cpu0/topology/thread_siblings 01 /sys/devices/system/cpu/cpu0/cpu_capacity 1024 /sys/devices/system/cpu/cpu0/cache/uevent /sys/devices/system/cpu/cpu0/cache/index2/uevent /sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_list 0-3 /sys/devices/system/cpu/cpu0/cache/index2/type Unified /sys/devices/system/cpu/cpu0/cache/index2/level 2 /sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_map 0f /sys/devices/system/cpu/cpu0/cache/index0/uevent /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_list 0 /sys/devices/system/cpu/cpu0/cache/index0/type Data /sys/devices/system/cpu/cpu0/cache/index0/level 1 /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map 01 /sys/devices/system/cpu/cpu0/cache/index1/uevent /sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_list 0 /sys/devices/system/cpu/cpu0/cache/index1/type Instruction /sys/devices/system/cpu/cpu0/cache/index1/level 1 /sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_map 01 /sys/devices/system/cpu/cpu0/regs/identification/revidr_el1 0x0000000000000180 /sys/devices/system/cpu/cpu0/regs/identification/midr_el1 0x0000000051af8014 /sys/devices/system/cpu/modalias cpu:type:aarch64:feature:,0000,0001,0002,0003,0004,0005,0006,0007,000B
On 22/05/2019 11:35, Marc Zyngier wrote: > On 22/05/2019 10:17, Marc Gonzalez wrote: > >> The following dmesg log caught my eye, and might be relevant: >> >> ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware >> >> Is that bad, doctor? I don't think it would explain the crash though... > > It doesn't explain it. > > It is bad though: your vendor doesn't tell the kernel about the HW being > free of Spectre-v2, and doesn't provide a mitigation either. Hopefully, > this is a responsible vendor that will provide you with a firmware > update that fixes it. # cd /sys/devices/system/cpu/vulnerabilities/ # grep "" * l1tf:Not affected mds:Not affected meltdown:Mitigation: PTI spec_store_bypass:Vulnerable spectre_v1:Mitigation: __user pointer sanitization spectre_v2:Vulnerable OK, so there are apparently two unmitigated vulns, spec_store_bypass and spectre_v2. These vulns need to be mitigated in FW because otherwise some secure property of the secure OS could be violated? Or because disabling the faulty optimization requires secure privileges? Some documentation, for my own reference: https://elixir.bootlin.com/linux/latest/source/Documentation/ABI/testing/sysfs-devices-system-cpu https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability Regards.
Changes since v1: - Reworded changes to the idle-state documentation on Sudeep's feedback. - Renamed several idle-state node names to be homogeneous across qcom platforms. We now use cpu_sleep_0_0 format for the node name while using LITTLE_CPU_SLEEP_0 format for labels to help differentiate the different states for different CPU types. - Add a new patch to add capacity-dmips-mhz property for msm8996 to allow topology code to find its true capacity. - Add power-collapse state to msm8998 in additon to the retention state. - Added acks MSM8998 changes are untested for v2 because I couldn't access the mtp I usually have access to. Hopefully Marc and Sibi can help with testing. Description ----------- Fix up a few entry-method="psci" issues and then add cpuidle low power states for msm8996, msm8998, qcs404, sdm845. All these have been tested to only make sure that the C-states are entered from Linux point-of-view. We will continue to add more states and make power measurements to tweak some of these numbers, but getting these merged will allow other people to use these platforms to work on cpuidle, eas and related topics. Amit Kucheria (7): arm64: dts: fsl: ls1028a: Fix entry-method property to reflect documentation Documentation: arm: Link idle-states binding to "enable-method" property arm64: dts: qcom: msm8916: Add entry-method property for the idle-states node arm64: dts: qcom: msm8916: Use more generic idle state names arm64: dts: qcom: msm8996: Add PSCI cpuidle low power states arm64: dts: qcom: msm8998: Add PSCI cpuidle low power states arm64: dts: msm8996: Add proper capacity scaling for the cpus Niklas Cassel (1): arm64: dts: qcom: qcs404: Add PSCI cpuidle low power states Raju P.L.S.S.S.N (1): arm64: dts: qcom: sdm845: Add PSCI cpuidle low power states .../devicetree/bindings/arm/idle-states.txt | 13 +++- .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8916.dtsi | 13 ++-- arch/arm64/boot/dts/qcom/msm8996.dtsi | 21 ++++++ arch/arm64/boot/dts/qcom/msm8998.dtsi | 50 ++++++++++++++ arch/arm64/boot/dts/qcom/qcs404.dtsi | 18 +++++ arch/arm64/boot/dts/qcom/sdm845.dtsi | 69 +++++++++++++++++++ 7 files changed, 177 insertions(+), 9 deletions(-)