[PATCH 3/3] kvm/ppc: don't call complete_mmio_load when it's a store

Alexander Graf
2013-04-17T19:04:07Z

From: Scott Wood <scottwood@freescale.com>

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 | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 16b4595..a822659 100644
--- 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;
}
--
1.6.0.2