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| author |   Will Deacon <will.deacon@arm.com> | 2019-05-01 15:34:56 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-05-01 15:34:56 +0100 |
| commit | 50abbe19623e08e2aa34e0e526bd6115569f3dc3 (patch) | |
| tree | ecaddb898d671847f70c40fcab5fd115dacc1a1e /kernel | |
| parent | Merge branch 'for-next/futex' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into for-next/core (diff) | |
| parent | Documentation: Add ARM64 to kernel-parameters.rst (diff) | |
| download | wireguard-linux-50abbe19623e08e2aa34e0e526bd6115569f3dc3.tar.xz wireguard-linux-50abbe19623e08e2aa34e0e526bd6115569f3dc3.zip | |
Merge branch 'for-next/mitigations' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into for-next/core
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpu.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 6754f3ecfd94..43e741e88691 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -2304,3 +2304,18 @@ void __init boot_cpu_hotplug_init(void) #endif this_cpu_write(cpuhp_state.state, CPUHP_ONLINE); } + +enum cpu_mitigations cpu_mitigations __ro_after_init = CPU_MITIGATIONS_AUTO; + +static int __init mitigations_parse_cmdline(char *arg) +{ + if (!strcmp(arg, "off")) + cpu_mitigations = CPU_MITIGATIONS_OFF; + else if (!strcmp(arg, "auto")) + cpu_mitigations = CPU_MITIGATIONS_AUTO; + else if (!strcmp(arg, "auto,nosmt")) + cpu_mitigations = CPU_MITIGATIONS_AUTO_NOSMT; + + return 0; +} +early_param("mitigations", mitigations_parse_cmdline); |