From: Simon Guo <wei.guo.simon@xxxxxxxxx> kvmppc_save_tm() invokes store_fp_state/store_vr_state(). So it is mandatory to turn on FP/VSX/VMX MSR bits for its execution, just like what kvmppc_restore_tm() did. Previsouly HV KVM has turned the bits on outside of function kvmppc_save_tm(). Now we include this bit change in kvmppc_save_tm() so that the logic is more clean. And PR KVM can reuse it later. Signed-off-by: Simon Guo <wei.guo.simon@xxxxxxxxx> Reviewed-by: Paul Mackerras <paulus@xxxxxxxxxx> --- arch/powerpc/kvm/tm.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kvm/tm.S b/arch/powerpc/kvm/tm.S index cbe608a..b7057d5 100644 --- a/arch/powerpc/kvm/tm.S +++ b/arch/powerpc/kvm/tm.S @@ -42,6 +42,8 @@ _GLOBAL(kvmppc_save_tm) mfmsr r8 li r0, 1 rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG + ori r8, r8, MSR_FP + oris r8, r8, (MSR_VEC | MSR_VSX)@h mtmsrd r8 rldicl. r4, r4, 64 - MSR_TS_S_LG, 62 -- 1.8.3.1
