KVM: change KVM to use IOMMU API

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

9 files changed, 33 insertions, 34 deletions

diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 0560f3fae538..348663661659 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -467,7 +467,7 @@ struct kvm_arch {
         struct kvm_sal_data rdv_sal_data;
 
         struct list_head assigned_dev_head;
-        struct dmar_domain *intel_iommu_domain;
+        struct iommu_domain *iommu_domain;
         struct hlist_head irq_ack_notifier_list;
 
         unsigned long irq_sources_bitmap;
diff --git a/arch/ia64/kvm/Makefile b/arch/ia64/kvm/Makefile
index cb69dfcfb1a6..0bb99b732908 100644
--- a/arch/ia64/kvm/Makefile
+++ b/arch/ia64/kvm/Makefile
@@ -51,7 +51,7 @@ EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
 common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
                 coalesced_mmio.o irq_comm.o)
 
-ifeq ($(CONFIG_DMAR),y)
+ifeq ($(CONFIG_IOMMU_API),y)
 common-objs += $(addprefix ../../../virt/kvm/, iommu.o)
 endif
 
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 0f5ebd948437..4e586f6110aa 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -31,6 +31,7 @@
 #include <linux/bitops.h>
 #include <linux/hrtimer.h>
 #include <linux/uaccess.h>
+#include <linux/iommu.h>
 #include <linux/intel-iommu.h>
 
 #include <asm/pgtable.h>
@@ -188,7 +189,7 @@ int kvm_dev_ioctl_check_extension(long ext)
                 r = KVM_COALESCED_MMIO_PAGE_OFFSET;
                 break;
         case KVM_CAP_IOMMU:
-                r = intel_iommu_found();
+                r = iommu_found();
                 break;
         default:
                 r = 0;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 97215a458e5f..730843d1d2fb 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -360,7 +360,7 @@ struct kvm_arch{
         struct list_head active_mmu_pages;
         struct list_head assigned_dev_head;
         struct list_head oos_global_pages;
-        struct dmar_domain *intel_iommu_domain;
+        struct iommu_domain *iommu_domain;
         struct kvm_pic *vpic;
         struct kvm_ioapic *vioapic;
         struct kvm_pit *vpit;
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 00f46c2d14bd..d3ec292f00f2 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -7,7 +7,7 @@ common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
 ifeq ($(CONFIG_KVM_TRACE),y)
 common-objs += $(addprefix ../../../virt/kvm/, kvm_trace.o)
 endif
-ifeq ($(CONFIG_DMAR),y)
+ifeq ($(CONFIG_IOMMU_API),y)
 common-objs += $(addprefix ../../../virt/kvm/, iommu.o)
 endif
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0e6aa8141dcd..cc17546a2406 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -34,6 +34,7 @@
 #include <linux/module.h>
 #include <linux/mman.h>
 #include <linux/highmem.h>
+#include <linux/iommu.h>
 #include <linux/intel-iommu.h>
 
 #include <asm/uaccess.h>
@@ -989,7 +990,7 @@ int kvm_dev_ioctl_check_extension(long ext)
                 r = !tdp_enabled;
                 break;
         case KVM_CAP_IOMMU:
-                r = intel_iommu_found();
+                r = iommu_found();
                 break;
         default:
                 r = 0;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e62a4629e51c..ec49d0be7f52 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -328,7 +328,7 @@ void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian);
 int kvm_request_irq_source_id(struct kvm *kvm);
 void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
 
-#ifdef CONFIG_DMAR
+#ifdef CONFIG_IOMMU_API
 int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
                         unsigned long npages);
 int kvm_iommu_map_guest(struct kvm *kvm);
@@ -337,7 +337,7 @@ int kvm_assign_device(struct kvm *kvm,
                       struct kvm_assigned_dev_kernel *assigned_dev);
 int kvm_deassign_device(struct kvm *kvm,
                         struct kvm_assigned_dev_kernel *assigned_dev);
-#else /* CONFIG_DMAR */
+#else /* CONFIG_IOMMU_API */
 static inline int kvm_iommu_map_pages(struct kvm *kvm,
                                       gfn_t base_gfn,
                                       unsigned long npages)
@@ -366,7 +366,7 @@ static inline int kvm_deassign_device(struct kvm *kvm,
 {
         return 0;
 }
-#endif /* CONFIG_DMAR */
+#endif /* CONFIG_IOMMU_API */
 
 static inline void kvm_guest_enter(void)
 {
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index d46de9af838b..d0bebaa5bf0a 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -25,6 +25,7 @@
 #include <linux/kvm_host.h>
 #include <linux/pci.h>
 #include <linux/dmar.h>
+#include <linux/iommu.h>
 #include <linux/intel-iommu.h>
 
 static int kvm_iommu_unmap_memslots(struct kvm *kvm);
@@ -37,7 +38,7 @@ int kvm_iommu_map_pages(struct kvm *kvm,
         gfn_t gfn = base_gfn;
         pfn_t pfn;
         int i, r = 0;
-        struct dmar_domain *domain = kvm->arch.intel_iommu_domain;
+        struct iommu_domain *domain = kvm->arch.iommu_domain;
 
         /* check if iommu exists and in use */
         if (!domain)
@@ -45,16 +46,15 @@ int kvm_iommu_map_pages(struct kvm *kvm,
 
         for (i = 0; i < npages; i++) {
                 /* check if already mapped */
-                if (intel_iommu_iova_to_phys(domain,
-                                             gfn_to_gpa(gfn)))
+                if (iommu_iova_to_phys(domain, gfn_to_gpa(gfn)))
                         continue;
 
                 pfn = gfn_to_pfn(kvm, gfn);
-                r = intel_iommu_map_address(domain,
-                                            gfn_to_gpa(gfn),
-                                            pfn_to_hpa(pfn),
-                                            PAGE_SIZE,
-                                            DMA_PTE_READ | DMA_PTE_WRITE);
+                r = iommu_map_range(domain,
+                                    gfn_to_gpa(gfn),
+                                    pfn_to_hpa(pfn),
+                                    PAGE_SIZE,
+                                    IOMMU_READ | IOMMU_WRITE);
                 if (r) {
                         printk(KERN_ERR "kvm_iommu_map_address:"
                                "iommu failed to map pfn=%lx\n", pfn);
@@ -88,7 +88,7 @@ int kvm_assign_device(struct kvm *kvm,
                       struct kvm_assigned_dev_kernel *assigned_dev)
 {
         struct pci_dev *pdev = NULL;
-        struct dmar_domain *domain = kvm->arch.intel_iommu_domain;
+        struct iommu_domain *domain = kvm->arch.iommu_domain;
         int r;
 
         /* check if iommu exists and in use */
@@ -99,7 +99,7 @@ int kvm_assign_device(struct kvm *kvm,
         if (pdev == NULL)
                 return -ENODEV;
 
-        r = intel_iommu_attach_device(domain, pdev);
+        r = iommu_attach_device(domain, &pdev->dev);
         if (r) {
                 printk(KERN_ERR "assign device %x:%x.%x failed",
                         pdev->bus->number,
@@ -119,7 +119,7 @@ int kvm_assign_device(struct kvm *kvm,
 int kvm_deassign_device(struct kvm *kvm,
                         struct kvm_assigned_dev_kernel *assigned_dev)
 {
-        struct dmar_domain *domain = kvm->arch.intel_iommu_domain;
+        struct iommu_domain *domain = kvm->arch.iommu_domain;
         struct pci_dev *pdev = NULL;
 
         /* check if iommu exists and in use */
@@ -130,7 +130,7 @@ int kvm_deassign_device(struct kvm *kvm,
         if (pdev == NULL)
                 return -ENODEV;
 
-        intel_iommu_detach_device(domain, pdev);
+        iommu_detach_device(domain, &pdev->dev);
 
         printk(KERN_DEBUG "deassign device: host bdf = %x:%x:%x\n",
                 assigned_dev->host_busnr,
@@ -144,13 +144,13 @@ int kvm_iommu_map_guest(struct kvm *kvm)
 {
         int r;
 
-        if (!intel_iommu_found()) {
-                printk(KERN_ERR "%s: intel iommu not found\n", __func__);
+        if (!iommu_found()) {
+                printk(KERN_ERR "%s: iommu not found\n", __func__);
                 return -ENODEV;
         }
 
-        kvm->arch.intel_iommu_domain = intel_iommu_alloc_domain();
-        if (!kvm->arch.intel_iommu_domain)
+        kvm->arch.iommu_domain = iommu_domain_alloc();
+        if (!kvm->arch.iommu_domain)
                 return -ENOMEM;
 
         r = kvm_iommu_map_memslots(kvm);
@@ -169,7 +169,7 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
 {
         gfn_t gfn = base_gfn;
         pfn_t pfn;
-        struct dmar_domain *domain = kvm->arch.intel_iommu_domain;
+        struct iommu_domain *domain = kvm->arch.iommu_domain;
         unsigned long i;
         u64 phys;
 
@@ -178,16 +178,13 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
                 return;
 
         for (i = 0; i < npages; i++) {
-                phys = intel_iommu_iova_to_phys(domain,
-                                                gfn_to_gpa(gfn));
+                phys = iommu_iova_to_phys(domain, gfn_to_gpa(gfn));
                 pfn = phys >> PAGE_SHIFT;
                 kvm_release_pfn_clean(pfn);
                 gfn++;
         }
 
-        intel_iommu_unmap_address(domain,
-                                  gfn_to_gpa(base_gfn),
-                                  PAGE_SIZE * npages);
+        iommu_unmap_range(domain, gfn_to_gpa(base_gfn), PAGE_SIZE * npages);
 }
 
 static int kvm_iommu_unmap_memslots(struct kvm *kvm)
@@ -205,13 +202,13 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm)
 
 int kvm_iommu_unmap_guest(struct kvm *kvm)
 {
-        struct dmar_domain *domain = kvm->arch.intel_iommu_domain;
+        struct iommu_domain *domain = kvm->arch.iommu_domain;
 
         /* check if iommu exists and in use */
         if (!domain)
                 return 0;
 
         kvm_iommu_unmap_memslots(kvm);
-        intel_iommu_free_domain(domain);
+        iommu_domain_free(domain);
         return 0;
 }
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 4ef0fb43d1f9..3a5a08298aab 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -504,7 +504,7 @@ 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 (!kvm->arch.intel_iommu_domain) {
+                if (!kvm->arch.iommu_domain) {
                         r = kvm_iommu_map_guest(kvm);
                         if (r)
                                 goto out_list_del;