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kvm: Fix dirty log temporary buffer size 

The buffer passed to KVM_GET_DIRTY_LOG requires one bit per page. Fix
the size calculation in kvm_physical_sync_dirty_bitmap accordingly,
avoiding allocation of extremly oversized buffers.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
master
Jan Kiszka 2009-05-01 20:52:47 +02:00 committed by Anthony Liguori
parent 4495d6a745
commit 62518b8b1d
1 changed files with 1 additions and 1 deletions
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kvm-all.c
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@ -290,7 +290,7 @@ void kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
return;
}
alloc_size = mem->memory_size >> TARGET_PAGE_BITS / sizeof(d.dirty_bitmap);
alloc_size = ((mem->memory_size >> TARGET_PAGE_BITS) + 7) / 8;
d.dirty_bitmap = qemu_mallocz(alloc_size);
d.slot = mem->slot;