| commit | 6a1ac77110ee3e8d8dfdef8442f3b30b3d83e6a2 | [log] [tgz] |
|---|---|---|
| author | Marcelo Tosatti <mtosatti@redhat.com> | Wed Jul 15 15:34:41 2009 -0300 |
| committer | Avi Kivity <avi@redhat.com> | Thu Sep 10 08:33:14 2009 +0300 |
| tree | 8ca7be75dcdd59b271869b8a002faaf8a4fa8857 | |
| parent | 3662cb1cd6ed26873ca808f3e16cc54246ad40ca [diff] |
KVM: MMU: fix missing locking in alloc_mmu_pages n_requested_mmu_pages/n_free_mmu_pages are used by kvm_mmu_change_mmu_pages to calculate the number of pages to zap. alloc_mmu_pages, called from the vcpu initialization path, modifies this variables without proper locking, which can result in a negative value in kvm_mmu_change_mmu_pages (say, with cpu hotplug). Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>