linux-kernel - Keep index within boundaries in kvmppc_44x_emul

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Message-ID: <4BE6D437.9000200@gmail.com>
Date:	Sun, 09 May 2010 17:26:47 +0200
From:	Roel Kluin <roel.kluin@...il.com>
To:	Alexander Graf <agraf@...e.de>, kvm-ppc@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: 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@...il.com>
---
 arch/powerpc/kvm/44x_tlb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 2570fcc..8123125 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -440,7 +440,7 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
 	unsigned int gtlb_index;
 
 	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);
 		kvmppc_dump_vcpu(vcpu);
 		return EMULATE_FAIL;
--
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