KVM: PPC: Use accessor functions for GPR access

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>

1 files changed, 8 insertions, 8 deletions

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index d8b63420acf8..49af80e4a6e1 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -69,10 +69,10 @@ void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu)
 
         for (i = 0; i < 32; i += 4) {
                 printk("gpr%02d: %08lx %08lx %08lx %08lx\n", i,
-                       vcpu->arch.gpr[i],
-                       vcpu->arch.gpr[i+1],
-                       vcpu->arch.gpr[i+2],
-                       vcpu->arch.gpr[i+3]);
+                       kvmppc_get_gpr(vcpu, i),
+                       kvmppc_get_gpr(vcpu, i+1),
+                       kvmppc_get_gpr(vcpu, i+2),
+                       kvmppc_get_gpr(vcpu, i+3));
         }
 }
 
@@ -431,7 +431,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 {
         vcpu->arch.pc = 0;
         vcpu->arch.msr = 0;
-        vcpu->arch.gpr[1] = (16<<20) - 8; /* -8 for the callee-save LR slot */
+        kvmppc_set_gpr(vcpu, 1, (16<<20) - 8); /* -8 for the callee-save LR slot */
 
         vcpu->arch.shadow_pid = 1;
 
@@ -466,7 +466,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
         regs->sprg7 = vcpu->arch.sprg6;
 
         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
-                regs->gpr[i] = vcpu->arch.gpr[i];
+                regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
 
         return 0;
 }
@@ -491,8 +491,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
         vcpu->arch.sprg6 = regs->sprg5;
         vcpu->arch.sprg7 = regs->sprg6;
 
-        for (i = 0; i < ARRAY_SIZE(vcpu->arch.gpr); i++)
-                vcpu->arch.gpr[i] = regs->gpr[i];
+        for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
+                kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
 
         return 0;
 }