1 files changed, 59 insertions, 14 deletions

diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index cf8eae1855e6..a312c9e9b9ef 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/intel-iommu.h>
 
 #include <asm/pgtable.h>
 #include <asm/gcc_intrin.h>
@@ -38,12 +39,14 @@
 #include <asm/cacheflush.h>
 #include <asm/div64.h>
 #include <asm/tlb.h>
+#include <asm/elf.h>
 
 #include "misc.h"
 #include "vti.h"
 #include "iodev.h"
 #include "ioapic.h"
 #include "lapic.h"
+#include "irq.h"
 
 static unsigned long kvm_vmm_base;
 static unsigned long kvm_vsa_base;
@@ -61,12 +64,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { NULL }
 };
 
-
-struct fdesc{
-    unsigned long ip;
-    unsigned long gp;
-};
-
 static void kvm_flush_icache(unsigned long start, unsigned long len)
 {
         int l;
@@ -184,12 +181,16 @@ int kvm_dev_ioctl_check_extension(long ext)
         switch (ext) {
         case KVM_CAP_IRQCHIP:
         case KVM_CAP_USER_MEMORY:
+        case KVM_CAP_MP_STATE:
 
                 r = 1;
                 break;
         case KVM_CAP_COALESCED_MMIO:
                 r = KVM_COALESCED_MMIO_PAGE_OFFSET;
                 break;
+        case KVM_CAP_IOMMU:
+                r = intel_iommu_found();
+                break;
         default:
                 r = 0;
         }
@@ -776,6 +777,7 @@ static void kvm_init_vm(struct kvm *kvm)
          */
         kvm_build_io_pmt(kvm);
 
+        INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
 }
 
 struct  kvm *kvm_arch_create_vm(void)
@@ -1339,6 +1341,10 @@ static void kvm_release_vm_pages(struct kvm *kvm)
 
 void kvm_arch_destroy_vm(struct kvm *kvm)
 {
+        kvm_iommu_unmap_guest(kvm);
+#ifdef  KVM_CAP_DEVICE_ASSIGNMENT
+        kvm_free_all_assigned_devices(kvm);
+#endif
         kfree(kvm->arch.vioapic);
         kvm_release_vm_pages(kvm);
         kvm_free_physmem(kvm);
@@ -1440,17 +1446,24 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
                 int user_alloc)
 {
         unsigned long i;
-        struct page *page;
+        unsigned long pfn;
         int npages = mem->memory_size >> PAGE_SHIFT;
         struct kvm_memory_slot *memslot = &kvm->memslots[mem->slot];
         unsigned long base_gfn = memslot->base_gfn;
 
         for (i = 0; i < npages; i++) {
-                page = gfn_to_page(kvm, base_gfn + i);
-                kvm_set_pmt_entry(kvm, base_gfn + i,
-                                page_to_pfn(page) << PAGE_SHIFT,
-                                _PAGE_AR_RWX|_PAGE_MA_WB);
-                memslot->rmap[i] = (unsigned long)page;
+                pfn = gfn_to_pfn(kvm, base_gfn + i);
+                if (!kvm_is_mmio_pfn(pfn)) {
+                        kvm_set_pmt_entry(kvm, base_gfn + i,
+                                        pfn << PAGE_SHIFT,
+                                _PAGE_AR_RWX | _PAGE_MA_WB);
+                        memslot->rmap[i] = (unsigned long)pfn_to_page(pfn);
+                } else {
+                        kvm_set_pmt_entry(kvm, base_gfn + i,
+                                        GPFN_PHYS_MMIO | (pfn << PAGE_SHIFT),
+                                        _PAGE_MA_UC);
+                        memslot->rmap[i] = 0;
+                        }
         }
 
         return 0;
@@ -1794,11 +1807,43 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                     struct kvm_mp_state *mp_state)
 {
-        return -EINVAL;
+        vcpu_load(vcpu);
+        mp_state->mp_state = vcpu->arch.mp_state;
+        vcpu_put(vcpu);
+        return 0;
+}
+
+static int vcpu_reset(struct kvm_vcpu *vcpu)
+{
+        int r;
+        long psr;
+        local_irq_save(psr);
+        r = kvm_insert_vmm_mapping(vcpu);
+        if (r)
+                goto fail;
+
+        vcpu->arch.launched = 0;
+        kvm_arch_vcpu_uninit(vcpu);
+        r = kvm_arch_vcpu_init(vcpu);
+        if (r)
+                goto fail;
+
+        kvm_purge_vmm_mapping(vcpu);
+        r = 0;
+fail:
+        local_irq_restore(psr);
+        return r;
 }
 
 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
                                     struct kvm_mp_state *mp_state)
 {
-        return -EINVAL;
+        int r = 0;
+
+        vcpu_load(vcpu);
+        vcpu->arch.mp_state = mp_state->mp_state;
+        if (vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)
+                r = vcpu_reset(vcpu);
+        vcpu_put(vcpu);
+        return r;
 }