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s390x/kvm: Add function for injecting pgm access exceptions

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Program access exceptions are defined to deliver a translation exception
code in the low-core. Add a function trigger_access_exception() that
generates the proper program interrupt on both KVM and non-KVM systems
and switch the existing code to use it.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Thomas Huth 2015-02-12 18:09:30 +01:00 • committed by Christian Borntraeger
parent 9d77309c9f
commit 801cdd355f
3 changed files with 33 additions and 6 deletions
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12
target-s390x/kvm.c
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@ -757,6 +757,18 @@ static void enter_pgmcheck(S390CPU *cpu, uint16_t code)
kvm_s390_vcpu_interrupt(cpu, &irq);
}
void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code)
{
struct kvm_s390_irq irq = {
.type = KVM_S390_PROGRAM_INT,
.u.pgm.code = code,
.u.pgm.trans_exc_code = te_code,
.u.pgm.exc_access_id = te_code & 3,
};
kvm_s390_vcpu_interrupt(cpu, &irq);
}
static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run,
uint16_t ipbh0)
{