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Commit 307d9279 authored by Paul Mackerras's avatar Paul Mackerras
Browse files

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: default avatarPaul Mackerras <paulus@ozlabs.org>
parent f7b1a77d

arch/powerpc/include/asm/kvm_ppc.h

+3 −0
Original line number Diff line number Diff line
@@ -132,6 +132,9 @@ extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 
extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);

extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);

extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);

extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu);

extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);

extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);

extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);

extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);

extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,

arch/powerpc/kvm/book3s.c

+18 −0
Original line number Diff line number Diff line
@@ -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);

arch/powerpc/kvm/booke.c

+5 −0
Original line number Diff line number Diff line
@@ -300,6 +300,11 @@ void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong esr_flags) 
	kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_PROGRAM);

}



void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)

{

	kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_FP_UNAVAIL);

}



void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)

{

	kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DECREMENTER);