diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2015-04-17 08:16:49 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-04-17 11:44:01 +0100 |
| commit | 993ebe4a0be9aa4e4821818a81fab00b1ab1a79a (patch) | |
| tree | e5bd6f8f53cc063d769fcd45390ba7e5ea21eb89 /target-ppc/machine.c | |
| parent | b8df9208f357d2b36e1b19634aea973618dc7ba8 (diff) | |
target-ppc: don't invalidate msr MSR_HVB bit in cpu_post_load
The invalidation code introduced in commit 2360b works by inverting most bits
of env->msr to ensure that hreg_store_msr() will forcibly update the CPU env
state to reflect the new msr value post-migration. Unfortunately
hreg_store_msr() is called with alter_hv set to 0 which preserves the MSR_HVB
state from the CPU env which is now the opposite value to what it should be.
Ensure that we don't invalidate the msr MSR_HVB bit during cpu_post_load so
that the correct value is restored. This fixes suspend/resume for PPC64.
Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-id: 1429255009-12751-1-git-send-email-mark.cave-ayland@ilande.co.uk
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-ppc/machine.c')
| -rw-r--r-- | target-ppc/machine.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target-ppc/machine.c b/target-ppc/machine.c index 3921012063..d875211a2d 100644 --- a/target-ppc/machine.c +++ b/target-ppc/machine.c @@ -192,9 +192,9 @@ static int cpu_post_load(void *opaque, int version_id) ppc_store_sdr1(env, env->spr[SPR_SDR1]); } - /* Mark msr bits except MSR_TGPR invalid before restoring */ + /* Invalidate all msr bits except MSR_TGPR/MSR_HVB before restoring */ msr = env->msr; - env->msr ^= ~(1ULL << MSR_TGPR); + env->msr ^= ~((1ULL << MSR_TGPR) | MSR_HVB); ppc_store_msr(env, msr); hreg_compute_mem_idx(env); |