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yaml
---
r: 329835
b: refs/heads/master
c: 6c8ee57
h: refs/heads/master
i:
  329833: 8b5cf9f
  329831: 52281b0
v: v3
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Xiao Guangrong authored and Avi Kivity committed Aug 6, 2012
1 parent 570a780 commit 9797375
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Showing 4 changed files with 7 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 16b854c889673d988285719bc020543a730f9ac6
refs/heads/master: 6c8ee57be9350c5c2cafdd6a99d0462d528676e2
2 changes: 1 addition & 1 deletion trunk/arch/x86/kvm/mmu.c
Original file line number Diff line number Diff line change
Expand Up @@ -2512,7 +2512,7 @@ static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,

slot = gfn_to_memslot_dirty_bitmap(vcpu, gfn, no_dirty_log);
if (!slot)
return get_fault_pfn();
return KVM_PFN_ERR_FAULT;

hva = gfn_to_hva_memslot(slot, gfn);

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3 changes: 2 additions & 1 deletion trunk/include/linux/kvm_host.h
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,8 @@
#define KVM_MAX_MMIO_FRAGMENTS \
(KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS)

#define KVM_PFN_ERR_FAULT (-EFAULT)

/*
* vcpu->requests bit members
*/
Expand Down Expand Up @@ -443,7 +445,6 @@ void kvm_release_pfn_clean(pfn_t pfn);
void kvm_set_pfn_dirty(pfn_t pfn);
void kvm_set_pfn_accessed(pfn_t pfn);
void kvm_get_pfn(pfn_t pfn);
pfn_t get_fault_pfn(void);

int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
int len);
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12 changes: 3 additions & 9 deletions trunk/virt/kvm/kvm_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -939,12 +939,6 @@ static pfn_t get_bad_pfn(void)
return -ENOENT;
}

pfn_t get_fault_pfn(void)
{
return -EFAULT;
}
EXPORT_SYMBOL_GPL(get_fault_pfn);

static pfn_t get_hwpoison_pfn(void)
{
return -EHWPOISON;
Expand Down Expand Up @@ -1115,7 +1109,7 @@ static pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async,
struct vm_area_struct *vma;

if (atomic)
return get_fault_pfn();
return KVM_PFN_ERR_FAULT;

down_read(&current->mm->mmap_sem);
if (npages == -EHWPOISON ||
Expand All @@ -1127,15 +1121,15 @@ static pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async,
vma = find_vma_intersection(current->mm, addr, addr+1);

if (vma == NULL)
pfn = get_fault_pfn();
pfn = KVM_PFN_ERR_FAULT;
else if ((vma->vm_flags & VM_PFNMAP)) {
pfn = ((addr - vma->vm_start) >> PAGE_SHIFT) +
vma->vm_pgoff;
BUG_ON(!kvm_is_mmio_pfn(pfn));
} else {
if (async && (vma->vm_flags & VM_WRITE))
*async = true;
pfn = get_fault_pfn();
pfn = KVM_PFN_ERR_FAULT;
}
up_read(&current->mm->mmap_sem);
} else
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