diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/include/asm/kvm.h | 6 | ||||
| -rw-r--r-- | arch/ia64/kvm/kvm-ia64.c | 40 |
2 files changed, 14 insertions, 32 deletions
diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h index f38472ac226..68aa6da807c 100644 --- a/arch/ia64/include/asm/kvm.h +++ b/arch/ia64/include/asm/kvm.h @@ -166,8 +166,6 @@ struct saved_vpd { }; struct kvm_regs { - char *saved_guest; - char *saved_stack; struct saved_vpd vpd; /*Arch-regs*/ int mp_state; @@ -200,6 +198,10 @@ struct kvm_regs { unsigned long fp_psr; /*used for lazy float register */ unsigned long saved_gp; /*for phycial emulation */ + + union context saved_guest; + + unsigned long reserved[64]; /* for future use */ }; struct kvm_sregs { diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index d2eb9691d61..0f5ebd94843 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -831,9 +831,8 @@ static int kvm_vm_ioctl_set_irqchip(struct kvm *kvm, struct kvm_irqchip *chip) int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - int i; struct vpd *vpd = to_host(vcpu->kvm, vcpu->arch.vpd); - int r; + int i; vcpu_load(vcpu); @@ -850,18 +849,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) vpd->vpr = regs->vpd.vpr; - r = -EFAULT; - r = copy_from_user(&vcpu->arch.guest, regs->saved_guest, - sizeof(union context)); - if (r) - goto out; - r = copy_from_user(vcpu + 1, regs->saved_stack + - sizeof(struct kvm_vcpu), - KVM_STK_OFFSET - sizeof(struct kvm_vcpu)); - if (r) - goto out; - vcpu->arch.exit_data = - ((struct kvm_vcpu *)(regs->saved_stack))->arch.exit_data; + memcpy(&vcpu->arch.guest, ®s->saved_guest, sizeof(union context)); RESTORE_REGS(mp_state); RESTORE_REGS(vmm_rr); @@ -895,9 +883,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) set_bit(KVM_REQ_RESUME, &vcpu->requests); vcpu_put(vcpu); - r = 0; -out: - return r; + + return 0; } long kvm_arch_vm_ioctl(struct file *filp, @@ -1378,9 +1365,9 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - int i; - int r; struct vpd *vpd = to_host(vcpu->kvm, vcpu->arch.vpd); + int i; + vcpu_load(vcpu); for (i = 0; i < 16; i++) { @@ -1395,14 +1382,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) regs->vpd.vpsr = vpd->vpsr; regs->vpd.vpr = vpd->vpr; - r = -EFAULT; - r = copy_to_user(regs->saved_guest, &vcpu->arch.guest, - sizeof(union context)); - if (r) - goto out; - r = copy_to_user(regs->saved_stack, (void *)vcpu, KVM_STK_OFFSET); - if (r) - goto out; + memcpy(®s->saved_guest, &vcpu->arch.guest, sizeof(union context)); + SAVE_REGS(mp_state); SAVE_REGS(vmm_rr); memcpy(regs->itrs, vcpu->arch.itrs, sizeof(struct thash_data) * NITRS); @@ -1430,10 +1411,9 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) SAVE_REGS(metaphysical_saved_rr4); SAVE_REGS(fp_psr); SAVE_REGS(saved_gp); + vcpu_put(vcpu); - r = 0; -out: - return r; + return 0; } void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) |