diff options
| author | Scott Wood <scottwood@freescale.com> | 2011-08-18 15:25:21 -0500 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-03-05 14:52:24 +0200 |
| commit | dc83b8bc0256ee682506ed83853a98eaba529c6f (patch) | |
| tree | 0d5f73b725392104320894d606bba10151a9ea3c /arch/powerpc/kvm/powerpc.c | |
| parent | 0164c0f0c404017fb04defb0ceb23fd1c3c3a53e (diff) | |
KVM: PPC: e500: MMU API
This implements a shared-memory API for giving host userspace access to
the guest's TLB.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index a5671616af8..3cf6fba513a 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -222,6 +222,9 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_PPC_PAIRED_SINGLES: case KVM_CAP_PPC_OSI: case KVM_CAP_PPC_GET_PVINFO: +#ifdef CONFIG_KVM_E500 + case KVM_CAP_SW_TLB: +#endif r = 1; break; case KVM_CAP_COALESCED_MMIO: @@ -602,6 +605,19 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, r = 0; vcpu->arch.papr_enabled = true; break; +#ifdef CONFIG_KVM_E500 + case KVM_CAP_SW_TLB: { + struct kvm_config_tlb cfg; + void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0]; + + r = -EFAULT; + if (copy_from_user(&cfg, user_ptr, sizeof(cfg))) + break; + + r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg); + break; + } +#endif default: r = -EINVAL; break; @@ -651,6 +667,18 @@ long kvm_arch_vcpu_ioctl(struct file *filp, r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap); break; } + +#ifdef CONFIG_KVM_E500 + case KVM_DIRTY_TLB: { + struct kvm_dirty_tlb dirty; + r = -EFAULT; + if (copy_from_user(&dirty, argp, sizeof(dirty))) + goto out; + r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty); + break; + } +#endif + default: r = -EINVAL; } |