diff options
| author | Diana Craciun <diana.craciun@nxp.com> | 2019-04-29 18:49:01 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 19:44:52 +0200 |
| commit | ec206826323afbc20daeaf862663e330cea10de1 (patch) | |
| tree | c15a5d16b962ce1c6cb5f3f145f98fdbca120dd1 | |
| parent | 389fd9776f3e1313501d6802e4513cb48070d9f6 (diff) | |
powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
commit 3bc8ea8603ae4c1e09aca8de229ad38b8091fcb3 upstream.
If the user choses not to use the mitigations, replace
the code sequence with nops.
Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 5a9f035bcd6b..cb37f27bb928 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -323,6 +323,7 @@ void __init setup_arch(char **cmdline_p) if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); setup_barrier_nospec(); + setup_spectre_v2(); paging_init(); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 6bb731ababc6..11590f6cb2f9 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -737,6 +737,7 @@ void __init setup_arch(char **cmdline_p) ppc_md.setup_arch(); setup_barrier_nospec(); + setup_spectre_v2(); paging_init(); |