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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-02-19 12:18:56 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-03-24 11:03:11 +0200 |
| commit | c5bc22424021cabda862727fb3f5098b866f074d (patch) | |
| tree | 587212e2615c9e33dcbe6372ea8243ffd0bbb06b | |
| parent | 1fbdc7a58512a6283e10fd27108197679db95ffa (diff) | |
| download | talos-op-linux-c5bc22424021cabda862727fb3f5098b866f074d.tar.gz talos-op-linux-c5bc22424021cabda862727fb3f5098b866f074d.zip | |
KVM: MMU: Fix another largepage memory leak
In the paging_fetch function rmap_remove is called after setting a large
pte to non-present. This causes rmap_remove to not drop the reference to
the large page. The result is a memory leak of that page.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 7314c0944c5f..0f11792fafa6 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -306,9 +306,9 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, continue; if (is_large_pte(*sptep)) { + rmap_remove(vcpu->kvm, sptep); set_shadow_pte(sptep, shadow_trap_nonpresent_pte); kvm_flush_remote_tlbs(vcpu->kvm); - rmap_remove(vcpu->kvm, sptep); } if (level == PT_DIRECTORY_LEVEL |
