diff options
| -rw-r--r-- | arch/riscv/Kconfig | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 905e550e0fd3..c22f58155948 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -396,7 +396,7 @@ config RISCV_SBI_V01 config RISCV_BOOT_SPINWAIT bool "Spinwait booting method" depends on SMP - default y + default y if RISCV_SBI_V01 || RISCV_M_MODE help This enables support for booting Linux via spinwait method. In the spinwait method, all cores randomly jump to Linux. One of the cores @@ -407,6 +407,12 @@ config RISCV_BOOT_SPINWAIT rely on ordered booting via SBI HSM extension which gets chosen dynamically at runtime if the firmware supports it. + Since spinwait is incompatible with sparse hart IDs, it requires + NR_CPUS be large enough to contain the physical hart ID of the first + hart to enter Linux. + + If unsure what to do here, say N. + config KEXEC bool "Kexec system call" select KEXEC_CORE |