diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2019-03-29 22:25:58 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-03 06:25:12 +0200 |
| commit | 56fe5a966a902b72e36a3b9991f07ed9c04f67fe (patch) | |
| tree | ea17476a7c2d8d62758d1f996d23536f25b912bf /arch/powerpc/Kconfig | |
| parent | 5a56eba71a139f1ded1707cd102017c5f2ad83b1 (diff) | |
powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
commit 179ab1cbf883575c3a585bcfc0f2160f1d22a149 upstream.
Add a config symbol to encode which platforms support the
barrier_nospec speculation barrier. Currently this is just Book3S 64
but we will add Book3E in a future patch.
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>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index fe418226df7f..d4eb36bb1f7c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -164,7 +164,7 @@ config PPC select GENERIC_CLOCKEVENTS_BROADCAST if SMP select GENERIC_CMOS_UPDATE select GENERIC_CPU_AUTOPROBE - select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 + select GENERIC_CPU_VULNERABILITIES if PPC_BARRIER_NOSPEC select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW_LEVEL select GENERIC_SMP_IDLE_THREAD @@ -236,6 +236,11 @@ config PPC # Please keep this list sorted alphabetically. # +config PPC_BARRIER_NOSPEC + bool + default y + depends on PPC_BOOK3S_64 + config GENERIC_CSUM def_bool n |