Since env->msr has already been restored by the time cpu_post_load is called,
make sure that ppc_store_msr() is explicitly called with all msr bits except
MSR_TGPR marked as invalid.
This solves the issue where MSR flags aren't set correctly when restoring a VM
snapshot, in particular the internal env->excp_prefix value when MSR_EP has
been altered by a guest.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
---
target-ppc/machine.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/target-ppc/machine.c b/target-ppc/machine.c
index c801b82..fc8ddcd 100644
--- a/target-ppc/machine.c
+++ b/target-ppc/machine.c
@@ -159,6 +159,7 @@ static int cpu_post_load(void *opaque, int version_id)
PowerPCCPU *cpu = opaque;
CPUPPCState *env = &cpu->env;
int i;
+ target_ulong msr;
/*
* We always ignore the source PVR. The user or management
@@ -190,7 +191,12 @@ static int cpu_post_load(void *opaque, int version_id)
/* Restore htab_base and htab_mask variables */
ppc_store_sdr1(env, env->spr[SPR_SDR1]);
}
- hreg_compute_hflags(env);
+
+ /* Mark msr bits except MSR_TGPR invalid before restoring */
+ msr = env->msr;
+ env->msr ^= ~(1 << MSR_TGPR);
+ ppc_store_msr(env, msr);
+
hreg_compute_mem_idx(env);
return 0;
--
1.7.10.4
