From: Diana Craciun <diana.craciun@xxxxxxx> commit 26cb1f36c43ee6e89d2a9f48a5a7500d5248f836 upstream. Currently only supported on powerpc. Signed-off-by: Diana Craciun <diana.craciun@xxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Documentation/kernel-parameters.txt | 4 ++++ 1 file changed, 4 insertions(+) --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2450,6 +2450,10 @@ bytes respectively. Such letter suffixes nohugeiomap [KNL,x86] Disable kernel huge I/O mappings. + nospectre_v1 [PPC] Disable mitigations for Spectre Variant 1 (bounds + check bypass). With this option data leaks are possible + in the system. + nospectre_v2 [X86,PPC_FSL_BOOK3E] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may allow data leaks with this option, which is equivalent
