[06/26] KVM: PPC: Convert SPRG[0-4] to shared page

Commit Message

Alexander Graf June 25, 2010, 11:24 p.m. UTC

None

Patch

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 6bcf62f..83c45ea 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -216,10 +216,6 @@  struct kvm_vcpu_arch {
 	ulong guest_owned_ext;
 #endif
 	u32 mmucr;
-	ulong sprg0;
-	ulong sprg1;
-	ulong sprg2;
-	ulong sprg3;
 	ulong sprg4;
 	ulong sprg5;
 	ulong sprg6;
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index d7fc6c2..e402999 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -23,6 +23,10 @@ 
 #include <linux/types.h>
 
 struct kvm_vcpu_arch_shared {
+	__u64 sprg0;
+	__u64 sprg1;
+	__u64 sprg2;
+	__u64 sprg3;
 	__u64 srr0;
 	__u64 srr1;
 	__u64 dar;
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b144697..5a6f055 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -1062,10 +1062,10 @@  int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	regs->srr0 = vcpu->arch.shared->srr0;
 	regs->srr1 = vcpu->arch.shared->srr1;
 	regs->pid = vcpu->arch.pid;
-	regs->sprg0 = vcpu->arch.sprg0;
-	regs->sprg1 = vcpu->arch.sprg1;
-	regs->sprg2 = vcpu->arch.sprg2;
-	regs->sprg3 = vcpu->arch.sprg3;
+	regs->sprg0 = vcpu->arch.shared->sprg0;
+	regs->sprg1 = vcpu->arch.shared->sprg1;
+	regs->sprg2 = vcpu->arch.shared->sprg2;
+	regs->sprg3 = vcpu->arch.shared->sprg3;
 	regs->sprg5 = vcpu->arch.sprg4;
 	regs->sprg6 = vcpu->arch.sprg5;
 	regs->sprg7 = vcpu->arch.sprg6;
@@ -1088,10 +1088,10 @@  int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	kvmppc_set_msr(vcpu, regs->msr);
 	vcpu->arch.shared->srr0 = regs->srr0;
 	vcpu->arch.shared->srr1 = regs->srr1;
-	vcpu->arch.sprg0 = regs->sprg0;
-	vcpu->arch.sprg1 = regs->sprg1;
-	vcpu->arch.sprg2 = regs->sprg2;
-	vcpu->arch.sprg3 = regs->sprg3;
+	vcpu->arch.shared->sprg0 = regs->sprg0;
+	vcpu->arch.shared->sprg1 = regs->sprg1;
+	vcpu->arch.shared->sprg2 = regs->sprg2;
+	vcpu->arch.shared->sprg3 = regs->sprg3;
 	vcpu->arch.sprg5 = regs->sprg4;
 	vcpu->arch.sprg6 = regs->sprg5;
 	vcpu->arch.sprg7 = regs->sprg6;
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 8b546fe..984c461 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -495,10 +495,10 @@  int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	regs->srr0 = vcpu->arch.shared->srr0;
 	regs->srr1 = vcpu->arch.shared->srr1;
 	regs->pid = vcpu->arch.pid;
-	regs->sprg0 = vcpu->arch.sprg0;
-	regs->sprg1 = vcpu->arch.sprg1;
-	regs->sprg2 = vcpu->arch.sprg2;
-	regs->sprg3 = vcpu->arch.sprg3;
+	regs->sprg0 = vcpu->arch.shared->sprg0;
+	regs->sprg1 = vcpu->arch.shared->sprg1;
+	regs->sprg2 = vcpu->arch.shared->sprg2;
+	regs->sprg3 = vcpu->arch.shared->sprg3;
 	regs->sprg5 = vcpu->arch.sprg4;
 	regs->sprg6 = vcpu->arch.sprg5;
 	regs->sprg7 = vcpu->arch.sprg6;
@@ -521,10 +521,10 @@  int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	kvmppc_set_msr(vcpu, regs->msr);
 	vcpu->arch.shared->srr0 = regs->srr0;
 	vcpu->arch.shared->srr1 = regs->srr1;
-	vcpu->arch.sprg0 = regs->sprg0;
-	vcpu->arch.sprg1 = regs->sprg1;
-	vcpu->arch.sprg2 = regs->sprg2;
-	vcpu->arch.sprg3 = regs->sprg3;
+	vcpu->arch.shared->sprg0 = regs->sprg0;
+	vcpu->arch.shared->sprg1 = regs->sprg1;
+	vcpu->arch.shared->sprg2 = regs->sprg2;
+	vcpu->arch.shared->sprg3 = regs->sprg3;
 	vcpu->arch.sprg5 = regs->sprg4;
 	vcpu->arch.sprg6 = regs->sprg5;
 	vcpu->arch.sprg7 = regs->sprg6;
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index ad0fa4f..454869b 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -263,13 +263,17 @@  int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 				kvmppc_set_gpr(vcpu, rt, get_tb()); break;
 
 			case SPRN_SPRG0:
-				kvmppc_set_gpr(vcpu, rt, vcpu->arch.sprg0); break;
+				kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->sprg0);
+				break;
 			case SPRN_SPRG1:
-				kvmppc_set_gpr(vcpu, rt, vcpu->arch.sprg1); break;
+				kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->sprg1);
+				break;
 			case SPRN_SPRG2:
-				kvmppc_set_gpr(vcpu, rt, vcpu->arch.sprg2); break;
+				kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->sprg2);
+				break;
 			case SPRN_SPRG3:
-				kvmppc_set_gpr(vcpu, rt, vcpu->arch.sprg3); break;
+				kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->sprg3);
+				break;
 			/* Note: SPRG4-7 are user-readable, so we don't get
 			 * a trap. */
 
@@ -341,13 +345,17 @@  int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 				break;
 
 			case SPRN_SPRG0:
-				vcpu->arch.sprg0 = kvmppc_get_gpr(vcpu, rs); break;
+				vcpu->arch.shared->sprg0 = kvmppc_get_gpr(vcpu, rs);
+				break;
 			case SPRN_SPRG1:
-				vcpu->arch.sprg1 = kvmppc_get_gpr(vcpu, rs); break;
+				vcpu->arch.shared->sprg1 = kvmppc_get_gpr(vcpu, rs);
+				break;
 			case SPRN_SPRG2:
-				vcpu->arch.sprg2 = kvmppc_get_gpr(vcpu, rs); break;
+				vcpu->arch.shared->sprg2 = kvmppc_get_gpr(vcpu, rs);
+				break;
 			case SPRN_SPRG3:
-				vcpu->arch.sprg3 = kvmppc_get_gpr(vcpu, rs); break;
+				vcpu->arch.shared->sprg3 = kvmppc_get_gpr(vcpu, rs);
+				break;
 
 			default:
 				emulated = kvmppc_core_emulate_mtspr(vcpu, sprn, rs);