The patch implements sPAPRPHBClass EEH callbacks so that the EEH
RTAS requests can be routed to VFIO for further handling.
Signed-off-by: Gavin Shan <gws...@linux.vnet.ibm.com>
---
hw/ppc/spapr_pci_vfio.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++
hw/vfio/common.c | 1 +
2 files changed, 99 insertions(+)
diff --git a/hw/ppc/spapr_pci_vfio.c b/hw/ppc/spapr_pci_vfio.c
index 144912b..285d8d5 100644
--- a/hw/ppc/spapr_pci_vfio.c
+++ b/hw/ppc/spapr_pci_vfio.c
@@ -76,6 +76,100 @@ static void spapr_phb_vfio_reset(DeviceState *qdev)
/* Do nothing */
}
+static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb, int option)
+{
+ sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
+ struct vfio_eeh_pe_op op = { .argsz = sizeof(op) };
+ int ret;
+
+ switch (option) {
+ case RTAS_EEH_DISABLE:
+ op.op = VFIO_EEH_PE_DISABLE;
+ break;
+ case RTAS_EEH_ENABLE:
+ op.op = VFIO_EEH_PE_ENABLE;
+ break;
+ case RTAS_EEH_THAW_IO:
+ op.op = VFIO_EEH_PE_UNFREEZE_IO;
+ break;
+ case RTAS_EEH_THAW_DMA:
+ op.op = VFIO_EEH_PE_UNFREEZE_DMA;
+ break;
+ default:
+ return RTAS_OUT_PARAM_ERROR;
+ }
+
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ VFIO_EEH_PE_OP, &op);
+ if (ret < 0) {
+ return RTAS_OUT_HW_ERROR;
+ }
+
+ return RTAS_OUT_SUCCESS;
+}
+
+static int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state)
+{
+ sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
+ struct vfio_eeh_pe_op op = { .argsz = sizeof(op) };
+ int ret;
+
+ op.op = VFIO_EEH_PE_GET_STATE;
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ VFIO_EEH_PE_OP, &op);
+ if (ret < 0) {
+ return RTAS_OUT_PARAM_ERROR;
+ }
+
+ *state = ret;
+ return RTAS_OUT_SUCCESS;
+}
+
+static int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option)
+{
+ sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
+ struct vfio_eeh_pe_op op = { .argsz = sizeof(op) };
+ int ret;
+
+ switch (option) {
+ case RTAS_SLOT_RESET_DEACTIVATE:
+ op.op = VFIO_EEH_PE_RESET_DEACTIVATE;
+ break;
+ case RTAS_SLOT_RESET_HOT:
+ op.op = VFIO_EEH_PE_RESET_HOT;
+ break;
+ case RTAS_SLOT_RESET_FUNDAMENTAL:
+ op.op = VFIO_EEH_PE_RESET_FUNDAMENTAL;
+ break;
+ default:
+ return RTAS_OUT_PARAM_ERROR;
+ }
+
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ VFIO_EEH_PE_OP, &op);
+ if (ret < 0) {
+ return RTAS_OUT_HW_ERROR;
+ }
+
+ return RTAS_OUT_SUCCESS;
+}
+
+static int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb)
+{
+ sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
+ struct vfio_eeh_pe_op op = { .argsz = sizeof(op) };
+ int ret;
+
+ op.op = VFIO_EEH_PE_CONFIGURE;
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ VFIO_EEH_PE_OP, &op);
+ if (ret < 0) {
+ return RTAS_OUT_PARAM_ERROR;
+ }
+
+ return RTAS_OUT_SUCCESS;
+}
+
static void spapr_phb_vfio_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -84,6 +178,10 @@ static void spapr_phb_vfio_class_init(ObjectClass *klass,
void *data)
dc->props = spapr_phb_vfio_properties;
dc->reset = spapr_phb_vfio_reset;
spc->finish_realize = spapr_phb_vfio_finish_realize;
+ spc->eeh_set_option = spapr_phb_vfio_eeh_set_option;
+ spc->eeh_get_state = spapr_phb_vfio_eeh_get_state;
+ spc->eeh_reset = spapr_phb_vfio_eeh_reset;
+ spc->eeh_configure = spapr_phb_vfio_eeh_configure;
}
static const TypeInfo spapr_phb_vfio_info = {
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index cf483ff..8a10c8b 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -948,6 +948,7 @@ int vfio_container_ioctl(AddressSpace *as, int32_t groupid,
switch (req) {
case VFIO_CHECK_EXTENSION:
case VFIO_IOMMU_SPAPR_TCE_GET_INFO:
+ case VFIO_EEH_PE_OP:
break;
default:
/* Return an error on unknown requests */
--
1.8.3.2
