diff options
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec_64.c')
| -rw-r--r-- | arch/powerpc/kernel/machine_kexec_64.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index a250e3331f94..1044bf15d5ed 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -323,17 +323,24 @@ void default_machine_kexec(struct kimage *image) kexec_stack.thread_info.cpu = current_thread_info()->cpu; /* We need a static PACA, too; copy this CPU's PACA over and switch to - * it. Also poison per_cpu_offset to catch anyone using non-static - * data. + * it. Also poison per_cpu_offset and NULL lppaca to catch anyone using + * non-static data. */ memcpy(&kexec_paca, get_paca(), sizeof(struct paca_struct)); kexec_paca.data_offset = 0xedeaddeadeeeeeeeUL; +#ifdef CONFIG_PPC_PSERIES + kexec_paca.lppaca_ptr = NULL; +#endif paca_ptrs[kexec_paca.paca_index] = &kexec_paca; + setup_paca(&kexec_paca); - /* XXX: If anyone does 'dynamic lppacas' this will also need to be - * switched to a static version! + /* + * The lppaca should be unregistered at this point so the HV won't + * touch it. In the case of a crash, none of the lppacas are + * unregistered so there is not much we can do about it here. */ + /* * On Book3S, the copy must happen with the MMU off if we are either * using Radix page tables or we are not in an LPAR since we can |
