Commit 78671ab4 authored by Paolo Bonzini's avatar Paolo Bonzini

Merge tag 'kvm-ppc-fixes-5.1-1' of...

Merge tag 'kvm-ppc-fixes-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD

KVM/PPC fixes for 5.1

- Fix host hang in the HTM assist code for POWER9
- Take srcu read lock around memslot lookup
parents 7a223e06 345077c8
...@@ -543,14 +543,14 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, ...@@ -543,14 +543,14 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
if (ret != H_SUCCESS) if (ret != H_SUCCESS)
return ret; return ret;
idx = srcu_read_lock(&vcpu->kvm->srcu);
ret = kvmppc_tce_validate(stt, tce); ret = kvmppc_tce_validate(stt, tce);
if (ret != H_SUCCESS) if (ret != H_SUCCESS)
return ret; goto unlock_exit;
dir = iommu_tce_direction(tce); dir = iommu_tce_direction(tce);
idx = srcu_read_lock(&vcpu->kvm->srcu);
if ((dir != DMA_NONE) && kvmppc_tce_to_ua(vcpu->kvm, tce, &ua, NULL)) { if ((dir != DMA_NONE) && kvmppc_tce_to_ua(vcpu->kvm, tce, &ua, NULL)) {
ret = H_PARAMETER; ret = H_PARAMETER;
goto unlock_exit; goto unlock_exit;
......
...@@ -3423,7 +3423,9 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit, ...@@ -3423,7 +3423,9 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit,
vcpu->arch.shregs.sprg2 = mfspr(SPRN_SPRG2); vcpu->arch.shregs.sprg2 = mfspr(SPRN_SPRG2);
vcpu->arch.shregs.sprg3 = mfspr(SPRN_SPRG3); vcpu->arch.shregs.sprg3 = mfspr(SPRN_SPRG3);
mtspr(SPRN_PSSCR, host_psscr); /* Preserve PSSCR[FAKE_SUSPEND] until we've called kvmppc_save_tm_hv */
mtspr(SPRN_PSSCR, host_psscr |
(local_paca->kvm_hstate.fake_suspend << PSSCR_FAKE_SUSPEND_LG));
mtspr(SPRN_HFSCR, host_hfscr); mtspr(SPRN_HFSCR, host_hfscr);
mtspr(SPRN_CIABR, host_ciabr); mtspr(SPRN_CIABR, host_ciabr);
mtspr(SPRN_DAWR, host_dawr); mtspr(SPRN_DAWR, host_dawr);
......
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