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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2009-04-14 15:36:27 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-04-14 15:37:27 +0200
commit5b409ed17bb32c8316b1f456466c70529454573a (patch)
treedb9731f053d7aee4fe27268febc95d3d9a9fde9d /arch/s390/kernel/entry64.S
parentb86ccca49cd8f22086c1d135ab3051cf48fb1688 (diff)
[S390] cpu hotplug and accounting values
Reset the cpu timer to the maximum value and correctly initialize the cpu accounting values in the lowcore when the cpu is started. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry64.S')
-rw-r--r--arch/s390/kernel/entry64.S13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index c6fbde13971..84a105838e0 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -831,14 +831,27 @@ mcck_return:
__CPUINIT
.globl restart_int_handler
restart_int_handler:
+ basr %r1,0
+restart_base:
+ spt restart_vtime-restart_base(%r1)
+ stck __LC_LAST_UPDATE_CLOCK
+ mvc __LC_LAST_UPDATE_TIMER(8),restart_vtime-restart_base(%r1)
+ mvc __LC_EXIT_TIMER(8),restart_vtime-restart_base(%r1)
lg %r15,__LC_SAVE_AREA+120 # load ksp
lghi %r10,__LC_CREGS_SAVE_AREA
lctlg %c0,%c15,0(%r10) # get new ctl regs
lghi %r10,__LC_AREGS_SAVE_AREA
lam %a0,%a15,0(%r10)
lmg %r6,%r15,__SF_GPRS(%r15) # load registers from clone
+ lg %r1,__LC_THREAD_INFO
+ mvc __LC_USER_TIMER(8),__TI_user_timer(%r1)
+ mvc __LC_SYSTEM_TIMER(8),__TI_system_timer(%r1)
+ xc __LC_STEAL_TIMER(8),__LC_STEAL_TIMER
stosm __SF_EMPTY(%r15),0x04 # now we can turn dat on
jg start_secondary
+ .align 8
+restart_vtime:
+ .long 0x7fffffff,0xffffffff
.previous
#else
/*