OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

s390x/kvm: Fixed condition code for unknown SIGP orders 

If SIGP is called with an unknown order code, it has to return CC1
instead of CC3 and set the "invalid order" bit in the return status.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Thomas Huth 2013-12-17 14:22:09 +01:00 committed by Alexander Graf
parent b8031adba7
commit 3796f0e1cd
1 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
target-s390x/kvm.c
View File

@ -633,8 +633,9 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
CPUS390XState *env = &cpu->env;
uint8_t order_code;
uint16_t cpu_addr;
int r = -1;
S390CPU *target_cpu;
uint64_t *statusreg = &env->regs[ipa1 >> 4];
int cc;
cpu_synchronize_state(CPU(cpu));
@ -644,29 +645,33 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
cpu_addr = env->regs[ipa1 & 0x0f];
target_cpu = s390_cpu_addr2state(cpu_addr);
if (target_cpu == NULL) {
cc = 3; /* not operational */
goto out;
}
switch (order_code) {
case SIGP_START:
r = kvm_s390_cpu_start(target_cpu);
cc = kvm_s390_cpu_start(target_cpu);
break;
case SIGP_RESTART:
r = kvm_s390_cpu_restart(target_cpu);
cc = kvm_s390_cpu_restart(target_cpu);
break;
case SIGP_SET_ARCH:
/* make the caller panic */
return -1;
case SIGP_INITIAL_CPU_RESET:
r = s390_cpu_initial_reset(target_cpu);
cc = s390_cpu_initial_reset(target_cpu);
break;
default:
fprintf(stderr, "KVM: unknown SIGP: 0x%x\n", order_code);
DPRINTF("KVM: unknown SIGP: 0x%x\n", order_code);
*statusreg &= 0xffffffff00000000UL;
*statusreg |= SIGP_STAT_INVALID_ORDER;
cc = 1; /* status stored */
break;
}
out:
setcc(cpu, r ? 3 : 0);
setcc(cpu, cc);
return 0;
}