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authorThomas Huth <thuth@linux.vnet.ibm.com>2013-07-29 15:49:16 +0200
committerChristian Borntraeger <borntraeger@de.ibm.com>2013-09-20 12:46:52 +0200
commit3ac85fb66626ea91641f5fb9ad9069aab94754f5 (patch)
tree82dd7ac05875c9f1aef6ca38f36d3936184747d5 /target-s390x
parent6c2679fc19560699679200fb42ab4659bcbe7f79 (diff)
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s390/kvm: Add check for priviledged SCLP handler
The SCLP instruction is priviledged, so we should make sure that we generate an exception when it is called from the problem state. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'target-s390x')
-rw-r--r--target-s390x/kvm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 4923e0a..0bc317e 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -439,6 +439,10 @@ static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run,
int r = 0;
cpu_synchronize_state(CPU(cpu));
+ if (env->psw.mask & PSW_MASK_PSTATE) {
+ enter_pgmcheck(cpu, PGM_PRIVILEGED);
+ return 0;
+ }
sccb = env->regs[ipbh0 & 0xf];
code = env->regs[(ipbh0 & 0xf0) >> 4];