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KVM: Fix kernel allocated memory slot

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Commit 7fd49de9773fdcb7b75e823b21c1c5dc1e218c14 "KVM: ensure that memslot
userspace addresses are page-aligned" broke kernel space allocated memory
slot, for the userspace_addr is invalid.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Sheng Yang 2008-11-11 15:30:40 +08:00 committed by Avi Kivity
parent 30ed5bb685
commit e7cacd40d2
1 changed files with 1 additions and 1 deletions
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2
virt/kvm/kvm_main.c
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@ -715,7 +715,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
goto out;
if (mem->guest_phys_addr & (PAGE_SIZE - 1))
goto out;
if (mem->userspace_addr & (PAGE_SIZE - 1))
if (user_alloc && (mem->userspace_addr & (PAGE_SIZE - 1)))
goto out;
if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
goto out;