On 07/03/2013 07:42:36 AM, Mihai Caraman wrote:
Increase FPU laziness by calling kvmppc_load_guest_fp() just before
returning to guest instead of each sched in. Without this improvement
an interrupt may also claim floting point corrupting guest state.
Signed-off-by: Mihai Caraman <mihai.caraman@xxxxxxxxxxxxx>
---
arch/powerpc/kvm/booke.c | 1 +
arch/powerpc/kvm/e500mc.c | 2 --
2 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 113961f..3cae2e3 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1204,6 +1204,7 @@ int kvmppc_handle_exit(struct kvm_run *run,
struct kvm_vcpu *vcpu,
r = (s << 2) | RESUME_HOST | (r &
RESUME_FLAG_NV);
} else {
kvmppc_lazy_ee_enable();
+ kvmppc_load_guest_fp(vcpu);
}
This should go before the kvmppc_lazy_ee_enable().
-Scott
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