Merge "These changes are the raw update to qemu-2.6."

1 files changed, 48 insertions, 89 deletions

diff --git a/qemu/hw/ppc/spapr_pci_vfio.c b/qemu/hw/ppc/spapr_pci_vfio.c
index cca45ed31..cbd3d23c9 100644
--- a/qemu/hw/ppc/spapr_pci_vfio.c
+++ b/qemu/hw/ppc/spapr_pci_vfio.c
@@ -17,73 +17,51 @@
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
 #include "hw/ppc/spapr.h"
 #include "hw/pci-host/spapr.h"
 #include "hw/pci/msix.h"
 #include "linux/vfio.h"
 #include "hw/vfio/vfio.h"
+#include "qemu/error-report.h"
 
-static Property spapr_phb_vfio_properties[] = {
-    DEFINE_PROP_INT32("iommu", sPAPRPHBVFIOState, iommugroupid, -1),
-    DEFINE_PROP_END_OF_LIST(),
-};
+#define TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE "spapr-pci-vfio-host-bridge"
 
-static void spapr_phb_vfio_finish_realize(sPAPRPHBState *sphb, Error **errp)
-{
-    sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
-    struct vfio_iommu_spapr_tce_info info = { .argsz = sizeof(info) };
-    int ret;
-    sPAPRTCETable *tcet;
-    uint32_t liobn = svphb->phb.dma_liobn;
+#define SPAPR_PCI_VFIO_HOST_BRIDGE(obj) \
+    OBJECT_CHECK(sPAPRPHBVFIOState, (obj), TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE)
 
-    if (svphb->iommugroupid == -1) {
-        error_setg(errp, "Wrong IOMMU group ID %d", svphb->iommugroupid);
-        return;
-    }
+typedef struct sPAPRPHBVFIOState sPAPRPHBVFIOState;
 
-    ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
-                               VFIO_CHECK_EXTENSION,
-                               (void *) VFIO_SPAPR_TCE_IOMMU);
-    if (ret != 1) {
-        error_setg_errno(errp, -ret,
-                         "spapr-vfio: SPAPR extension is not supported");
-        return;
-    }
+struct sPAPRPHBVFIOState {
+    sPAPRPHBState phb;
 
-    ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
-                               VFIO_IOMMU_SPAPR_TCE_GET_INFO, &info);
-    if (ret) {
-        error_setg_errno(errp, -ret,
-                         "spapr-vfio: get info from container failed");
-        return;
-    }
+    int32_t iommugroupid;
+};
 
-    tcet = spapr_tce_new_table(DEVICE(sphb), liobn, info.dma32_window_start,
-                               SPAPR_TCE_PAGE_SHIFT,
-                               info.dma32_window_size >> SPAPR_TCE_PAGE_SHIFT,
-                               true);
-    if (!tcet) {
-        error_setg(errp, "spapr-vfio: failed to create VFIO TCE table");
-        return;
-    }
+static Property spapr_phb_vfio_properties[] = {
+    DEFINE_PROP_INT32("iommu", sPAPRPHBVFIOState, iommugroupid, -1),
+    DEFINE_PROP_END_OF_LIST(),
+};
 
-    /* Register default 32bit DMA window */
-    memory_region_add_subregion(&sphb->iommu_root, tcet->bus_offset,
-                                spapr_tce_get_iommu(tcet));
+static void spapr_phb_vfio_instance_init(Object *obj)
+{
+    error_report("spapr-pci-vfio-host-bridge is deprecated");
 }
 
-static void spapr_phb_vfio_eeh_reenable(sPAPRPHBVFIOState *svphb)
+bool spapr_phb_eeh_available(sPAPRPHBState *sphb)
 {
-    struct vfio_eeh_pe_op op = {
-        .argsz = sizeof(op),
-        .op    = VFIO_EEH_PE_ENABLE
-    };
+    return vfio_eeh_as_ok(&sphb->iommu_as);
+}
 
-    vfio_container_ioctl(&svphb->phb.iommu_as,
-                         svphb->iommugroupid, VFIO_EEH_PE_OP, &op);
+static void spapr_phb_vfio_eeh_reenable(sPAPRPHBState *sphb)
+{
+    vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_ENABLE);
 }
 
-static void spapr_phb_vfio_reset(DeviceState *qdev)
+void spapr_phb_vfio_reset(DeviceState *qdev)
 {
     /*
      * The PE might be in frozen state. To reenable the EEH
@@ -91,19 +69,18 @@ static void spapr_phb_vfio_reset(DeviceState *qdev)
      * ensures that the contained PCI devices will work properly
      * after reboot.
      */
-    spapr_phb_vfio_eeh_reenable(SPAPR_PCI_VFIO_HOST_BRIDGE(qdev));
+    spapr_phb_vfio_eeh_reenable(SPAPR_PCI_HOST_BRIDGE(qdev));
 }
 
-static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
-                                         unsigned int addr, int option)
+int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
+                                  unsigned int addr, int option)
 {
-    sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb);
-    struct vfio_eeh_pe_op op = { .argsz = sizeof(op) };
+    uint32_t op;
     int ret;
 
     switch (option) {
     case RTAS_EEH_DISABLE:
-        op.op = VFIO_EEH_PE_DISABLE;
+        op = VFIO_EEH_PE_DISABLE;
         break;
     case RTAS_EEH_ENABLE: {
         PCIHostState *phb;
@@ -117,25 +94,24 @@ static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
         phb = PCI_HOST_BRIDGE(sphb);
         pdev = pci_find_device(phb->bus,
                                (addr >> 16) & 0xFF, (addr >> 8) & 0xFF);
-        if (!pdev) {
+        if (!pdev || !object_dynamic_cast(OBJECT(pdev), "vfio-pci")) {
             return RTAS_OUT_PARAM_ERROR;
         }
 
-        op.op = VFIO_EEH_PE_ENABLE;
+        op = VFIO_EEH_PE_ENABLE;
         break;
     }
     case RTAS_EEH_THAW_IO:
-        op.op = VFIO_EEH_PE_UNFREEZE_IO;
+        op = VFIO_EEH_PE_UNFREEZE_IO;
         break;
     case RTAS_EEH_THAW_DMA:
-        op.op = VFIO_EEH_PE_UNFREEZE_DMA;
+        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);
+    ret = vfio_eeh_as_op(&sphb->iommu_as, op);
     if (ret < 0) {
         return RTAS_OUT_HW_ERROR;
     }
@@ -143,15 +119,11 @@ static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
     return RTAS_OUT_SUCCESS;
 }
 
-static int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state)
+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);
+    ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_GET_STATE);
     if (ret < 0) {
         return RTAS_OUT_PARAM_ERROR;
     }
@@ -203,30 +175,28 @@ static void spapr_phb_vfio_eeh_pre_reset(sPAPRPHBState *sphb)
        pci_for_each_bus(phb->bus, spapr_phb_vfio_eeh_clear_bus_msix, NULL);
 }
 
-static int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option)
+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) };
+    uint32_t op;
     int ret;
 
     switch (option) {
     case RTAS_SLOT_RESET_DEACTIVATE:
-        op.op = VFIO_EEH_PE_RESET_DEACTIVATE;
+        op = VFIO_EEH_PE_RESET_DEACTIVATE;
         break;
     case RTAS_SLOT_RESET_HOT:
         spapr_phb_vfio_eeh_pre_reset(sphb);
-        op.op = VFIO_EEH_PE_RESET_HOT;
+        op = VFIO_EEH_PE_RESET_HOT;
         break;
     case RTAS_SLOT_RESET_FUNDAMENTAL:
         spapr_phb_vfio_eeh_pre_reset(sphb);
-        op.op = VFIO_EEH_PE_RESET_FUNDAMENTAL;
+        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);
+    ret = vfio_eeh_as_op(&sphb->iommu_as, op);
     if (ret < 0) {
         return RTAS_OUT_HW_ERROR;
     }
@@ -234,15 +204,11 @@ static int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option)
     return RTAS_OUT_SUCCESS;
 }
 
-static int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb)
+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);
+    ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_CONFIGURE);
     if (ret < 0) {
         return RTAS_OUT_PARAM_ERROR;
     }
@@ -253,23 +219,16 @@ static int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb)
 static void spapr_phb_vfio_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    sPAPRPHBClass *spc = SPAPR_PCI_HOST_BRIDGE_CLASS(klass);
 
     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 = {
     .name          = TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE,
     .parent        = TYPE_SPAPR_PCI_HOST_BRIDGE,
     .instance_size = sizeof(sPAPRPHBVFIOState),
+    .instance_init = spapr_phb_vfio_instance_init,
     .class_init    = spapr_phb_vfio_class_init,
-    .class_size    = sizeof(sPAPRPHBClass),
 };
 
 static void spapr_pci_vfio_register_types(void)