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authorAlexander Graf <agraf@suse.de>2010-02-19 11:00:41 +0100
committerAvi Kivity <avi@redhat.com>2010-04-25 12:35:18 +0300
commitdba2e123e7502870c965e4b445554bc8e56f78b2 (patch)
treea6a82c6906d4804d8c88f6e903469bbd6faaa16d /arch
parent963cf3dc6342fe60bb78c615884537621abca0bc (diff)
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KVM: PPC: Fix error in BAT assignment
BATs didn't work. Well, they did, but only up to BAT3. As soon as we came to BAT4 the offset calculation was screwed up and we ended up overwriting BAT0-3. Fortunately, Linux hasn't been using BAT4+. It's still a good idea to write correct code though. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kvm/book3s_64_emulate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_64_emulate.c b/arch/powerpc/kvm/book3s_64_emulate.c
index a93aa471917..1d1b9524f0e 100644
--- a/arch/powerpc/kvm/book3s_64_emulate.c
+++ b/arch/powerpc/kvm/book3s_64_emulate.c
@@ -233,13 +233,13 @@ static void kvmppc_write_bat(struct kvm_vcpu *vcpu, int sprn, u32 val)
bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2];
break;
case SPRN_IBAT4U ... SPRN_IBAT7L:
- bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT4U) / 2];
+ bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)];
break;
case SPRN_DBAT0U ... SPRN_DBAT3L:
bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2];
break;
case SPRN_DBAT4U ... SPRN_DBAT7L:
- bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT4U) / 2];
+ bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)];
break;
default:
BUG();