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authorAlexander Graf <agraf@suse.de>2014-01-09 11:10:44 +0100
committerAlexander Graf <agraf@suse.de>2014-01-09 11:10:46 +0100
commit7a8ff56be68239bd36a2b639cb40bfbcfc58dad3 (patch)
tree07b1de550303217b8048b457008b05bd942cfc3e /arch/powerpc
parent47d45d9f53a7c478fc83dff7b421cb4bc3ad9f94 (diff)
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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h18
1 files changed, 7 insertions, 11 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 8bb87069461..f8b23201c10 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -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)