| kernel-parameters.txt (94e4dcc75a47253c75084524e15735585cd220a1) | kernel-parameters.txt (0fb1c25ab523614b056ace11be67aac8f8ccabb1) |
|---|---|
| 1 acpi= [HW,ACPI,X86,ARM64] 2 Advanced Configuration and Power Interface 3 Format: { force | on | off | strict | noirq | rsdt | 4 copy_dsdt } 5 force -- enable ACPI if default was off 6 on -- enable ACPI but allow fallback to DT [arm64] 7 off -- disable ACPI if default was on 8 noirq -- do not use ACPI for IRQ routing --- 2829 unchanged lines hidden (view full) --- 2838 On X86-32 available only on PAE configured kernels. 2839 noexec=on: enable non-executable mappings (default) 2840 noexec=off: disable non-executable mappings 2841 2842 nosmap [X86] 2843 Disable SMAP (Supervisor Mode Access Prevention) 2844 even if it is supported by processor. 2845 | 1 acpi= [HW,ACPI,X86,ARM64] 2 Advanced Configuration and Power Interface 3 Format: { force | on | off | strict | noirq | rsdt | 4 copy_dsdt } 5 force -- enable ACPI if default was off 6 on -- enable ACPI but allow fallback to DT [arm64] 7 off -- disable ACPI if default was on 8 noirq -- do not use ACPI for IRQ routing --- 2829 unchanged lines hidden (view full) --- 2838 On X86-32 available only on PAE configured kernels. 2839 noexec=on: enable non-executable mappings (default) 2840 noexec=off: disable non-executable mappings 2841 2842 nosmap [X86] 2843 Disable SMAP (Supervisor Mode Access Prevention) 2844 even if it is supported by processor. 2845 |
| 2846 nosmep [X86] | 2846 nosmep [X86,PPC] |
| 2847 Disable SMEP (Supervisor Mode Execution Prevention) 2848 even if it is supported by processor. 2849 2850 noexec32 [X86-64] 2851 This affects only 32-bit executables. 2852 noexec32=on: enable non-executable mappings (default) 2853 read doesn't imply executable mappings 2854 noexec32=off: disable non-executable mappings --- 763 unchanged lines hidden (view full) --- 3618 3619 ras=option[,option,...] [KNL] RAS-specific options 3620 3621 cec_disable [X86] 3622 Disable the Correctable Errors Collector, 3623 see CONFIG_RAS_CEC help text. 3624 3625 rcu_nocbs= [KNL] | 2847 Disable SMEP (Supervisor Mode Execution Prevention) 2848 even if it is supported by processor. 2849 2850 noexec32 [X86-64] 2851 This affects only 32-bit executables. 2852 noexec32=on: enable non-executable mappings (default) 2853 read doesn't imply executable mappings 2854 noexec32=off: disable non-executable mappings --- 763 unchanged lines hidden (view full) --- 3618 3619 ras=option[,option,...] [KNL] RAS-specific options 3620 3621 cec_disable [X86] 3622 Disable the Correctable Errors Collector, 3623 see CONFIG_RAS_CEC help text. 3624 3625 rcu_nocbs= [KNL] |
| 3626 The argument is a cpu list, as described above, 3627 except that the string "all" can be used to 3628 specify every CPU on the system. | 3626 The argument is a cpu list, as described above. |
| 3629 3630 In kernels built with CONFIG_RCU_NOCB_CPU=y, set 3631 the specified list of CPUs to be no-callback CPUs. 3632 Invocation of these CPUs' RCU callbacks will be 3633 offloaded to "rcuox/N" kthreads created for that 3634 purpose, where "x" is "p" for RCU-preempt, and 3635 "s" for RCU-sched, and "N" is the CPU number. 3636 This reduces OS jitter on the offloaded CPUs, --- 1549 unchanged lines hidden --- | 3627 3628 In kernels built with CONFIG_RCU_NOCB_CPU=y, set 3629 the specified list of CPUs to be no-callback CPUs. 3630 Invocation of these CPUs' RCU callbacks will be 3631 offloaded to "rcuox/N" kthreads created for that 3632 purpose, where "x" is "p" for RCU-preempt, and 3633 "s" for RCU-sched, and "N" is the CPU number. 3634 This reduces OS jitter on the offloaded CPUs, --- 1549 unchanged lines hidden --- |