diff options
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index c8a2212014e..bc7ff3658c3 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -107,6 +107,11 @@ STACK_SIZE = 1 << STACK_SHIFT l %r13,__LC_SVC_NEW_PSW+4 # load &system_call to %r13 .endm + .macro SAVE_ALL_SVC psworg,savearea + la %r12,\psworg + l %r15,__LC_KERNEL_STACK # problem state -> load ksp + .endm + .macro SAVE_ALL_SYNC psworg,savearea la %r12,\psworg tm \psworg+1,0x01 # test problem state bit @@ -218,7 +223,7 @@ system_call: STORE_TIMER __LC_SYNC_ENTER_TIMER sysc_saveall: SAVE_ALL_BASE __LC_SAVE_AREA - SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA + SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA lh %r7,0x8a # get svc number from lowcore #ifdef CONFIG_VIRT_CPU_ACCOUNTING @@ -769,10 +774,13 @@ mcck_return: RESTORE_ALL __LC_RETURN_MCCK_PSW,0 -#ifdef CONFIG_SMP /* * Restart interruption handler, kick starter for additional CPUs */ +#ifdef CONFIG_SMP +#ifndef CONFIG_HOTPLUG_CPU + .section .init.text,"ax" +#endif .globl restart_int_handler restart_int_handler: l %r15,__LC_SAVE_AREA+60 # load ksp @@ -785,6 +793,9 @@ restart_int_handler: br %r14 # branch to start_secondary restart_addr: .long start_secondary +#ifndef CONFIG_HOTPLUG_CPU + .previous +#endif #else /* * If we do not run with SMP enabled, let the new CPU crash ... |