summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kvm/book3s.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
-rw-r--r--arch/powerpc/kvm/book3s.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 3f2a8360c857..a4b645285240 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -411,6 +411,15 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
return 0;
}
+int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
+{
+ return 0;
+}
+
+void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
+{
+}
+
int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
int i;
@@ -476,6 +485,122 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
return -ENOTSUPP;
}
+int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
+{
+ int r;
+ union kvmppc_one_reg val;
+ int size;
+ long int i;
+
+ size = one_reg_size(reg->id);
+ if (size > sizeof(val))
+ return -EINVAL;
+
+ r = kvmppc_get_one_reg(vcpu, reg->id, &val);
+
+ if (r == -EINVAL) {
+ r = 0;
+ switch (reg->id) {
+ case KVM_REG_PPC_DAR:
+ val = get_reg_val(reg->id, vcpu->arch.shared->dar);
+ break;
+ case KVM_REG_PPC_DSISR:
+ val = get_reg_val(reg->id, vcpu->arch.shared->dsisr);
+ break;
+ case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
+ i = reg->id - KVM_REG_PPC_FPR0;
+ val = get_reg_val(reg->id, vcpu->arch.fpr[i]);
+ break;
+ case KVM_REG_PPC_FPSCR:
+ val = get_reg_val(reg->id, vcpu->arch.fpscr);
+ break;
+#ifdef CONFIG_ALTIVEC
+ case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ val.vval = vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0];
+ break;
+ case KVM_REG_PPC_VSCR:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
+ break;
+#endif /* CONFIG_ALTIVEC */
+ default:
+ r = -EINVAL;
+ break;
+ }
+ }
+ if (r)
+ return r;
+
+ if (copy_to_user((char __user *)(unsigned long)reg->addr, &val, size))
+ r = -EFAULT;
+
+ return r;
+}
+
+int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
+{
+ int r;
+ union kvmppc_one_reg val;
+ int size;
+ long int i;
+
+ size = one_reg_size(reg->id);
+ if (size > sizeof(val))
+ return -EINVAL;
+
+ if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size))
+ return -EFAULT;
+
+ r = kvmppc_set_one_reg(vcpu, reg->id, &val);
+
+ if (r == -EINVAL) {
+ r = 0;
+ switch (reg->id) {
+ case KVM_REG_PPC_DAR:
+ vcpu->arch.shared->dar = set_reg_val(reg->id, val);
+ break;
+ case KVM_REG_PPC_DSISR:
+ vcpu->arch.shared->dsisr = set_reg_val(reg->id, val);
+ break;
+ case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
+ i = reg->id - KVM_REG_PPC_FPR0;
+ vcpu->arch.fpr[i] = set_reg_val(reg->id, val);
+ break;
+ case KVM_REG_PPC_FPSCR:
+ vcpu->arch.fpscr = set_reg_val(reg->id, val);
+ break;
+#ifdef CONFIG_ALTIVEC
+ case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
+ break;
+ case KVM_REG_PPC_VSCR:
+ if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+ r = -ENXIO;
+ break;
+ }
+ vcpu->arch.vscr.u[3] = set_reg_val(reg->id, val);
+ break;
+#endif /* CONFIG_ALTIVEC */
+ default:
+ r = -EINVAL;
+ break;
+ }
+ }
+
+ return r;
+}
+
int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{