KVM: PPC: Provide functions for queueing up FP/VEC/VSX unavailable interrupts

This provides functions that can be used for generating interrupts
indicating that a given functional unit (floating point, vector, or
VSX) is unavailable.  These functions will be used in instruction
emulation code.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b6b5c185bd92..0ff0d07c0757 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -197,6 +197,24 @@ void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
 }
 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
 
+void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)
+{
+        /* might as well deliver this straight away */
+        kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, 0);
+}
+
+void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu)
+{
+        /* might as well deliver this straight away */
+        kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_ALTIVEC, 0);
+}
+
+void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu)
+{
+        /* might as well deliver this straight away */
+        kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_VSX, 0);
+}
+
 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
 {
         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);