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Diffstat (limited to 'virt/kvm/iommu.c')
-rw-r--r--virt/kvm/iommu.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 1514758..80fd3ad 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -32,10 +32,10 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm);
static void kvm_iommu_put_pages(struct kvm *kvm,
gfn_t base_gfn, unsigned long npages);
-int kvm_iommu_map_pages(struct kvm *kvm,
- gfn_t base_gfn, unsigned long npages)
+int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
{
- gfn_t gfn = base_gfn;
+ gfn_t gfn = slot->base_gfn;
+ unsigned long npages = slot->npages;
pfn_t pfn;
int i, r = 0;
struct iommu_domain *domain = kvm->arch.iommu_domain;
@@ -54,7 +54,7 @@ int kvm_iommu_map_pages(struct kvm *kvm,
if (iommu_iova_to_phys(domain, gfn_to_gpa(gfn)))
continue;
- pfn = gfn_to_pfn(kvm, gfn);
+ pfn = gfn_to_pfn_memslot(kvm, slot, gfn);
r = iommu_map_range(domain,
gfn_to_gpa(gfn),
pfn_to_hpa(pfn),
@@ -69,17 +69,19 @@ int kvm_iommu_map_pages(struct kvm *kvm,
return 0;
unmap_pages:
- kvm_iommu_put_pages(kvm, base_gfn, i);
+ kvm_iommu_put_pages(kvm, slot->base_gfn, i);
return r;
}
static int kvm_iommu_map_memslots(struct kvm *kvm)
{
int i, r = 0;
+ struct kvm_memslots *slots;
+
+ slots = rcu_dereference(kvm->memslots);
- for (i = 0; i < kvm->nmemslots; i++) {
- r = kvm_iommu_map_pages(kvm, kvm->memslots[i].base_gfn,
- kvm->memslots[i].npages);
+ for (i = 0; i < slots->nmemslots; i++) {
+ r = kvm_iommu_map_pages(kvm, &slots->memslots[i]);
if (r)
break;
}
@@ -104,7 +106,8 @@ int kvm_assign_device(struct kvm *kvm,
r = iommu_attach_device(domain, &pdev->dev);
if (r) {
- printk(KERN_ERR "assign device %x:%x.%x failed",
+ printk(KERN_ERR "assign device %x:%x:%x.%x failed",
+ pci_domain_nr(pdev->bus),
pdev->bus->number,
PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn));
@@ -125,7 +128,8 @@ int kvm_assign_device(struct kvm *kvm,
goto out_unmap;
}
- printk(KERN_DEBUG "assign device: host bdf = %x:%x:%x\n",
+ printk(KERN_DEBUG "assign device %x:%x:%x.%x\n",
+ assigned_dev->host_segnr,
assigned_dev->host_busnr,
PCI_SLOT(assigned_dev->host_devfn),
PCI_FUNC(assigned_dev->host_devfn));
@@ -152,7 +156,8 @@ int kvm_deassign_device(struct kvm *kvm,
iommu_detach_device(domain, &pdev->dev);
- printk(KERN_DEBUG "deassign device: host bdf = %x:%x:%x\n",
+ printk(KERN_DEBUG "deassign device %x:%x:%x.%x\n",
+ assigned_dev->host_segnr,
assigned_dev->host_busnr,
PCI_SLOT(assigned_dev->host_devfn),
PCI_FUNC(assigned_dev->host_devfn));
@@ -210,10 +215,13 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
static int kvm_iommu_unmap_memslots(struct kvm *kvm)
{
int i;
+ struct kvm_memslots *slots;
+
+ slots = rcu_dereference(kvm->memslots);
- for (i = 0; i < kvm->nmemslots; i++) {
- kvm_iommu_put_pages(kvm, kvm->memslots[i].base_gfn,
- kvm->memslots[i].npages);
+ for (i = 0; i < slots->nmemslots; i++) {
+ kvm_iommu_put_pages(kvm, slots->memslots[i].base_gfn,
+ slots->memslots[i].npages);
}
return 0;
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