diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 433b380896b9..bc25366f0244 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -64,6 +64,7 @@ #include <asm/sysinfo.h> #include <asm/numa.h> #include <asm/alternative.h> +#include <asm/nospec-branch.h> #include "entry.h" /* @@ -375,6 +376,7 @@ static void __init setup_lowcore(void) #ifdef CONFIG_SMP lc->spinlock_lockval = arch_spin_lockval(0); #endif + lc->br_r1_trampoline = 0x07f1; /* br %r1 */ set_prefix((u32)(unsigned long) lc); lowcore_ptr[0] = lc; @@ -935,6 +937,8 @@ void __init setup_arch(char **cmdline_p) set_preferred_console(); apply_alternative_instructions(); + if (IS_ENABLED(CONFIG_EXPOLINE)) + nospec_init_branches(); /* Setup zfcpdump support */ setup_zfcpdump(); |