Reuse KVM_DEV_ASSIGN_ENABLE_IOMMU for an in-kernel struct didn't make much
sense.
Signed-off-by: Sheng Yang <sheng@xxxxxxxxxxxxxxx>
---
include/linux/kvm_host.h | 1 +
virt/kvm/assigned-dev.c | 7 ++++---
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 274655b..f09db87 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -500,6 +500,7 @@ struct kvm_guest_msix_entry {
u16 flags;
};
+#define KVM_ASSIGNED_ENABLED_IOMMU (1 << 0)
struct kvm_assigned_dev_kernel {
struct kvm_irq_ack_notifier ack_notifier;
struct work_struct interrupt_work;
diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index 7c98928..5c6b96d 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -552,7 +552,8 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
match->host_segnr = assigned_dev->segnr;
match->host_busnr = assigned_dev->busnr;
match->host_devfn = assigned_dev->devfn;
- match->flags = assigned_dev->flags;
+ if (assigned_dev->flags & KVM_DEV_ASSIGN_ENABLE_IOMMU)
+ match->flags |= KVM_ASSIGNED_ENABLED_IOMMU;
match->dev = dev;
spin_lock_init(&match->assigned_dev_lock);
match->irq_source_id = -1;
@@ -563,7 +564,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
list_add(&match->list, &kvm->arch.assigned_dev_head);
- if (assigned_dev->flags & KVM_DEV_ASSIGN_ENABLE_IOMMU) {
+ if (assigned_dev->flags & KVM_ASSIGNED_ENABLED_IOMMU) {
if (!kvm->arch.iommu_domain) {
r = kvm_iommu_map_guest(kvm);
if (r)
@@ -609,7 +610,7 @@ static int kvm_vm_ioctl_deassign_device(struct kvm *kvm,
goto out;
}
- if (match->flags & KVM_DEV_ASSIGN_ENABLE_IOMMU)
+ if (match->flags & KVM_ASSIGNED_ENABLED_IOMMU)
kvm_deassign_device(kvm, match);
kvm_free_assigned_device(kvm, match);
--
1.7.0.1
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