CONFIG_MP_NUM_CPUS

Number of CPUs/cores

Type: int

Help

Number of multiprocessing-capable cores available to the
multicpu API and SMP features.

Defaults

• 2

• 2

• 2 if BOARD_UP_SQUARED

• 4

• 2

• 2

• 2

• 1

• 2

• 1

• 2

• 2

• 2

• 2

• 2

• 1

Kconfig definitions

At <Boards>/x86/acrn/Kconfig.defconfig:10

Included via Kconfig:8 → Kconfig.zephyr:22

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on BOARD_ACRN

---

At <Boards>/x86/ehl_crb/Kconfig.defconfig:13

Included via Kconfig:8 → Kconfig.zephyr:22

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on BOARD_EHL_CRB || BOARD_EHL_CRB_SBL

---

At <Boards>/x86/up_squared/Kconfig.defconfig:8

Included via Kconfig:8 → Kconfig.zephyr:22

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2 if BOARD_UP_SQUARED
    depends on BOARD_UP_SQUARED

---

At <SoC>/arc/snps_arc_hsdk/Kconfig.defconfig:39

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 4
    depends on SOC_ARC_HSDK

---

At <SoC>/arc/snps_nsim/Kconfig.defconfig.hs_smp:37

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/arc/snps_nsim/Kconfig.defconfig:16

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_NSIM_HS_SMP && SOC_NSIM

---

At <SoC>/arc/snps_nsim/Kconfig.defconfig.hs6x_smp:30

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/arc/snps_nsim/Kconfig.defconfig:18

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_NSIM_HS6X_SMP && SOC_NSIM

---

At <SoC>/arm/xilinx_zynq7000/xc7zxxx/Kconfig.defconfig.series:13

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/arm/xilinx_zynq7000/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_SERIES_XILINX_XC7ZXXX

---

At <SoC>/arm/xilinx_zynq7000/xc7zxxxs/Kconfig.defconfig.series:13

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/arm/xilinx_zynq7000/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 1
    depends on SOC_SERIES_XILINX_XC7ZXXXS

---

At <SoC>/xtensa/esp32/Kconfig.defconfig:39

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SMP && SOC_ESP32

---

At <SoC>/xtensa/esp32s2/Kconfig.defconfig:29

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 1
    depends on SOC_ESP32S2

---

At <SoC>/xtensa/intel_adsp/cavs_v15/Kconfig.defconfig.series:36

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_SERIES_INTEL_CAVS_V15

---

At <SoC>/xtensa/intel_adsp/cavs_v18/Kconfig.defconfig.series:22

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_SERIES_INTEL_CAVS_V18

---

At <SoC>/xtensa/intel_adsp/cavs_v20/Kconfig.defconfig.series:22

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_SERIES_INTEL_CAVS_V20

---

At <SoC>/xtensa/intel_adsp/cavs_v25/Kconfig.defconfig.series:19

Included via Kconfig:8 → Kconfig.zephyr:27 → <SoC>/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SOC_SERIES_INTEL_CAVS_V25

---

At <SoC>/xtensa/intel_s1000/Kconfig.defconfig:31

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MP_NUM_CPUS
    int
    default 2
    depends on SMP && SOC_INTEL_S1000

---

At <Kernel>/Kconfig:851

Included via Kconfig:8 → Kconfig.zephyr:40

Menu path: (Top) → General Kernel Options → SMP Options

config MP_NUM_CPUS
    int "Number of CPUs/cores"
    range 1 4
    default 1
    help
      Number of multiprocessing-capable cores available to the
      multicpu API and SMP features.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)