These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / s390 / kvm / intercept.c

diff --git a/kernel/arch/s390/kvm/intercept.c b/kernel/arch/s390/kvm/intercept.c
index 9e3779e..b4a5aa1 100644 (file)
--- a/kernel/arch/s390/kvm/intercept.c
+++ b/kernel/arch/s390/kvm/intercept.c
@@ -241,21 +241,6 @@ static int handle_prog(struct kvm_vcpu *vcpu)
        return kvm_s390_inject_prog_irq(vcpu, &pgm_info);
 }
 
-static int handle_instruction_and_prog(struct kvm_vcpu *vcpu)
-{
-       int rc, rc2;
-
-       vcpu->stat.exit_instr_and_program++;
-       rc = handle_instruction(vcpu);
-       rc2 = handle_prog(vcpu);
-
-       if (rc == -EOPNOTSUPP)
-               vcpu->arch.sie_block->icptcode = 0x04;
-       if (rc)
-               return rc;
-       return rc2;
-}
-
 /**
  * handle_external_interrupt - used for external interruption interceptions
  *
@@ -351,29 +336,28 @@ static int handle_partial_execution(struct kvm_vcpu *vcpu)
        return -EOPNOTSUPP;
 }
 
-static const intercept_handler_t intercept_funcs[] = {
-       [0x00 >> 2] = handle_noop,
-       [0x04 >> 2] = handle_instruction,
-       [0x08 >> 2] = handle_prog,
-       [0x0C >> 2] = handle_instruction_and_prog,
-       [0x10 >> 2] = handle_noop,
-       [0x14 >> 2] = handle_external_interrupt,
-       [0x18 >> 2] = handle_noop,
-       [0x1C >> 2] = kvm_s390_handle_wait,
-       [0x20 >> 2] = handle_validity,
-       [0x28 >> 2] = handle_stop,
-       [0x38 >> 2] = handle_partial_execution,
-};
-
 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
 {
-       intercept_handler_t func;
-       u8 code = vcpu->arch.sie_block->icptcode;
-
-       if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
+       switch (vcpu->arch.sie_block->icptcode) {
+       case 0x00:
+       case 0x10:
+       case 0x18:
+               return handle_noop(vcpu);
+       case 0x04:
+               return handle_instruction(vcpu);
+       case 0x08:
+               return handle_prog(vcpu);
+       case 0x14:
+               return handle_external_interrupt(vcpu);
+       case 0x1c:
+               return kvm_s390_handle_wait(vcpu);
+       case 0x20:
+               return handle_validity(vcpu);
+       case 0x28:
+               return handle_stop(vcpu);
+       case 0x38:
+               return handle_partial_execution(vcpu);
+       default:
                return -EOPNOTSUPP;
-       func = intercept_funcs[code >> 2];
-       if (func)
-               return func(vcpu);
-       return -EOPNOTSUPP;
+       }
 }