diff options
Diffstat (limited to 'arch/arm64/kernel/smp_spin_table.c')
| -rw-r--r-- | arch/arm64/kernel/smp_spin_table.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c index e3e5755f61bb..0347d38eea29 100644 --- a/arch/arm64/kernel/smp_spin_table.c +++ b/arch/arm64/kernel/smp_spin_table.c @@ -71,7 +71,16 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu) return -ENODEV; release_addr = __va(cpu_release_addr[cpu]); - release_addr[0] = (void *)__pa(secondary_holding_pen); + + /* + * We write the release address as LE regardless of the native + * endianess of the kernel. Therefore, any boot-loaders that + * read this address need to convert this address to the + * boot-loader's endianess before jumping. This is mandated by + * the boot protocol. + */ + release_addr[0] = (void *) cpu_to_le64(__pa(secondary_holding_pen)); + __flush_dcache_area(release_addr, sizeof(release_addr[0])); /* |