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-rw-r--r--drivers/kvm/mmu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index b3a83ef..23dc461 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -1150,6 +1150,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
unsigned pte_size;
unsigned page_offset;
unsigned misaligned;
+ unsigned quadrant;
int level;
int flooded = 0;
int npte;
@@ -1202,7 +1203,10 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
page_offset <<= 1;
npte = 2;
}
+ quadrant = page_offset >> PAGE_SHIFT;
page_offset &= ~PAGE_MASK;
+ if (quadrant != page->role.quadrant)
+ continue;
}
spte = __va(page->page_hpa);
spte += page_offset / sizeof(*spte);
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