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KVM: PPC: Keep index within boundaries in kvmppc_44x_emul_tlbwe() 

An index of KVM44x_GUEST_TLB_SIZE is already one too large.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Hollis Blanchard <hollis@penguinppc.org>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Roel Kluin 2010-05-09 17:26:47 +02:00 committed by Marcelo Tosatti
parent f8c5fae166
commit 4f018c513a
1 changed files with 1 additions and 1 deletions
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arch/powerpc/kvm/44x_tlb.c
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@ -440,7 +440,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
unsigned int gtlb_index; unsigned int gtlb_index;
gtlb_index = kvmppc_get_gpr(vcpu, ra); gtlb_index = kvmppc_get_gpr(vcpu, ra);
if (gtlb_index > KVM44x_GUEST_TLB_SIZE) { if (gtlb_index >= KVM44x_GUEST_TLB_SIZE) {
printk("%s: index %d\n", __func__, gtlb_index); printk("%s: index %d\n", __func__, gtlb_index);
kvmppc_dump_vcpu(vcpu); kvmppc_dump_vcpu(vcpu);
return EMULATE_FAIL; return EMULATE_FAIL;