diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_p9_entry.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_p9_entry.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_p9_entry.c b/arch/powerpc/kvm/book3s_hv_p9_entry.c index 6120cdf281b9..72119bc13e1d 100644 --- a/arch/powerpc/kvm/book3s_hv_p9_entry.c +++ b/arch/powerpc/kvm/book3s_hv_p9_entry.c @@ -780,6 +780,7 @@ int kvmhv_vcpu_entry_p9(struct kvm_vcpu *vcpu, u64 time_limit, unsigned long lpc unsigned long host_pidr; unsigned long host_dawr1; unsigned long host_dawrx1; + unsigned long dpdes; hdec = time_limit - *tb; if (hdec < 0) @@ -842,8 +843,10 @@ int kvmhv_vcpu_entry_p9(struct kvm_vcpu *vcpu, u64 time_limit, unsigned long lpc if (vc->pcr) mtspr(SPRN_PCR, vc->pcr | PCR_MASK); - if (vc->dpdes) - mtspr(SPRN_DPDES, vc->dpdes); + if (vcpu->arch.doorbell_request) { + vcpu->arch.doorbell_request = 0; + mtspr(SPRN_DPDES, 1); + } if (dawr_enabled()) { if (vcpu->arch.dawr0 != host_dawr0) @@ -1074,7 +1077,10 @@ tm_return_to_guest: vcpu->arch.shregs.sprg2 = mfspr(SPRN_SPRG2); vcpu->arch.shregs.sprg3 = mfspr(SPRN_SPRG3); - vc->dpdes = mfspr(SPRN_DPDES); + dpdes = mfspr(SPRN_DPDES); + if (dpdes) + vcpu->arch.doorbell_request = 1; + vc->vtb = mfspr(SPRN_VTB); dec = mfspr(SPRN_DEC); @@ -1136,7 +1142,7 @@ tm_return_to_guest: } } - if (vc->dpdes) + if (dpdes) mtspr(SPRN_DPDES, 0); if (vc->pcr) mtspr(SPRN_PCR, PCR_MASK); |