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yaml
---
r: 125205
b: refs/heads/master
c: 2843099
h: refs/heads/master
i:
  125203: 2dec18e
v: v3
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Izik Eidus authored and Avi Kivity committed Dec 31, 2008
1 parent 0a97ff5 commit 5e9b69c
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Showing 4 changed files with 18 additions and 9 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: 6eb55818c043b097c83828da8430fcb9a02fdb89
refs/heads/master: 2843099fee32a6020e1caa95c6026f28b5d43bff
2 changes: 2 additions & 0 deletions trunk/arch/x86/include/asm/kvm_host.h
Original file line number Diff line number Diff line change
Expand Up @@ -617,6 +617,8 @@ void kvm_disable_tdp(void);
int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int complete_pio(struct kvm_vcpu *vcpu);

struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn);

static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
{
struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
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14 changes: 10 additions & 4 deletions trunk/arch/x86/kvm/mmu.c
Original file line number Diff line number Diff line change
Expand Up @@ -386,24 +386,30 @@ static void account_shadowed(struct kvm *kvm, gfn_t gfn)
{
int *write_count;

write_count = slot_largepage_idx(gfn, gfn_to_memslot(kvm, gfn));
gfn = unalias_gfn(kvm, gfn);
write_count = slot_largepage_idx(gfn,
gfn_to_memslot_unaliased(kvm, gfn));
*write_count += 1;
}

static void unaccount_shadowed(struct kvm *kvm, gfn_t gfn)
{
int *write_count;

write_count = slot_largepage_idx(gfn, gfn_to_memslot(kvm, gfn));
gfn = unalias_gfn(kvm, gfn);
write_count = slot_largepage_idx(gfn,
gfn_to_memslot_unaliased(kvm, gfn));
*write_count -= 1;
WARN_ON(*write_count < 0);
}

static int has_wrprotected_page(struct kvm *kvm, gfn_t gfn)
{
struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
struct kvm_memory_slot *slot;
int *largepage_idx;

gfn = unalias_gfn(kvm, gfn);
slot = gfn_to_memslot_unaliased(kvm, gfn);
if (slot) {
largepage_idx = slot_largepage_idx(gfn, slot);
return *largepage_idx;
Expand Down Expand Up @@ -2973,8 +2979,8 @@ static void audit_write_protection(struct kvm_vcpu *vcpu)
if (sp->role.metaphysical)
continue;

slot = gfn_to_memslot(vcpu->kvm, sp->gfn);
gfn = unalias_gfn(vcpu->kvm, sp->gfn);
slot = gfn_to_memslot_unaliased(vcpu->kvm, sp->gfn);
rmapp = &slot->rmap[gfn - slot->base_gfn];
if (*rmapp)
printk(KERN_ERR "%s: (%s) shadow page has writable"
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9 changes: 5 additions & 4 deletions trunk/virt/kvm/kvm_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -923,7 +923,7 @@ int kvm_is_error_hva(unsigned long addr)
}
EXPORT_SYMBOL_GPL(kvm_is_error_hva);

static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn)
{
int i;

Expand All @@ -936,11 +936,12 @@ static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
}
return NULL;
}
EXPORT_SYMBOL_GPL(gfn_to_memslot_unaliased);

struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
{
gfn = unalias_gfn(kvm, gfn);
return __gfn_to_memslot(kvm, gfn);
return gfn_to_memslot_unaliased(kvm, gfn);
}

int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
Expand All @@ -964,7 +965,7 @@ unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
struct kvm_memory_slot *slot;

gfn = unalias_gfn(kvm, gfn);
slot = __gfn_to_memslot(kvm, gfn);
slot = gfn_to_memslot_unaliased(kvm, gfn);
if (!slot)
return bad_hva();
return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
Expand Down Expand Up @@ -1215,7 +1216,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
struct kvm_memory_slot *memslot;

gfn = unalias_gfn(kvm, gfn);
memslot = __gfn_to_memslot(kvm, gfn);
memslot = gfn_to_memslot_unaliased(kvm, gfn);
if (memslot && memslot->dirty_bitmap) {
unsigned long rel_gfn = gfn - memslot->base_gfn;

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