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Diffstat (limited to 'arch/powerpc/kvm/book3s_64_vio.c')
-rw-r--r--arch/powerpc/kvm/book3s_64_vio.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 82970042295e..18cf6d1f8174 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -209,6 +209,32 @@ fail:
return ret;
}
+long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
+ unsigned long ioba, unsigned long tce)
+{
+ struct kvmppc_spapr_tce_table *stt = kvmppc_find_table(vcpu, liobn);
+ long ret;
+
+ /* udbg_printf("H_PUT_TCE(): liobn=0x%lx ioba=0x%lx, tce=0x%lx\n", */
+ /* liobn, ioba, tce); */
+
+ if (!stt)
+ return H_TOO_HARD;
+
+ ret = kvmppc_ioba_validate(stt, ioba, 1);
+ if (ret != H_SUCCESS)
+ return ret;
+
+ ret = kvmppc_tce_validate(stt, tce);
+ if (ret != H_SUCCESS)
+ return ret;
+
+ kvmppc_tce_put(stt, ioba >> stt->page_shift, tce);
+
+ return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_put_tce);
+
long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
unsigned long liobn, unsigned long ioba,
unsigned long tce_list, unsigned long npages)
@@ -264,3 +290,29 @@ unlock_exit:
return ret;
}
EXPORT_SYMBOL_GPL(kvmppc_h_put_tce_indirect);
+
+long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
+ unsigned long liobn, unsigned long ioba,
+ unsigned long tce_value, unsigned long npages)
+{
+ struct kvmppc_spapr_tce_table *stt;
+ long i, ret;
+
+ stt = kvmppc_find_table(vcpu, liobn);
+ if (!stt)
+ return H_TOO_HARD;
+
+ ret = kvmppc_ioba_validate(stt, ioba, npages);
+ if (ret != H_SUCCESS)
+ return ret;
+
+ /* Check permission bits only to allow userspace poison TCE for debug */
+ if (tce_value & (TCE_PCI_WRITE | TCE_PCI_READ))
+ return H_PARAMETER;
+
+ for (i = 0; i < npages; ++i, ioba += (1ULL << stt->page_shift))
+ kvmppc_tce_put(stt, ioba >> stt->page_shift, tce_value);
+
+ return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_stuff_tce);