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KVM: PPC: Unify kvmppc_get_last_inst and sc 

We had code duplication between the inline functions to get our last
instruction on normal interrupts and system call interrupts. Unify
both helper functions towards a single implementation.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2014-01-09 11:10:44 +01:00
parent 47d45d9f53
commit 7a8ff56be6
1 changed files with 7 additions and 11 deletions
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18
arch/powerpc/include/asm/kvm_book3s.h
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@ -264,10 +264,8 @@ static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
return vcpu->arch.pc;
}
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc)
{
ulong pc = kvmppc_get_pc(vcpu);
/* Load the instruction manually if it failed to do so in the
* exit path */
if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
@ -276,6 +274,11 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
return vcpu->arch.last_inst;
}
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
{
return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu));
}
/*
* Like kvmppc_get_last_inst(), but for fetching a sc instruction.
* Because the sc instruction sets SRR0 to point to the following
@ -283,14 +286,7 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
*/
static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
{
ulong pc = kvmppc_get_pc(vcpu) - 4;
/* Load the instruction manually if it failed to do so in the
* exit path */
if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
return vcpu->arch.last_inst;
return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4);
}
static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)