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KVM: PPC: Use accessor functions for GPR access

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All code in PPC KVM currently accesses gprs in the vcpu struct directly.

While there's nothing wrong with that wrt the current way gprs are stored
and loaded, it doesn't suffice for the PACA acceleration that will follow
in this patchset.

So let's just create little wrapper inline functions that we call whenever
a GPR needs to be read from or written to. The compiled code shouldn't really
change at all for now.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf 2010-01-08 02:58:01 +01:00 • committed by Marcelo Tosatti
parent 0d178975d0
commit 8e5b26b55a
11 changed files with 274 additions and 225 deletions
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26
arch/powerpc/include/asm/kvm_ppc.h
View file

@ -96,4 +96,30 @@ extern void kvmppc_booke_exit(void);
extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
#ifdef CONFIG_PPC_BOOK3S
static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
{
vcpu->arch.gpr[num] = val;
}
static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
{
return vcpu->arch.gpr[num];
}
#else
static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
{
vcpu->arch.gpr[num] = val;
}
static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
{
return vcpu->arch.gpr[num];
}
#endif
#endif /* __POWERPC_KVM_PPC_H__ */