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kvm/ppc: don't call complete_mmio_load when it's a store
author
Scott Wood
<scottwood@freescale.com>
Mon, 15 Apr 2013 15:07:11 +0000
(15:07 +0000)
committer
Alexander Graf
<agraf@suse.de>
Wed, 17 Apr 2013 13:21:16 +0000
(15:21 +0200)
complete_mmio_load writes back the mmio result into the
destination register. Doing this on a store results in
register corruption.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
arch/powerpc/kvm/powerpc.c
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diff --git
a/arch/powerpc/kvm/powerpc.c
b/arch/powerpc/kvm/powerpc.c
index
16b4595
..
a822659
100644
(file)
--- a/
arch/powerpc/kvm/powerpc.c
+++ b/
arch/powerpc/kvm/powerpc.c
@@
-683,7
+683,6
@@
int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
if (!kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr,
bytes, &run->mmio.data)) {
- kvmppc_complete_mmio_load(vcpu, run);
vcpu->mmio_needed = 0;
return EMULATE_DONE;
}