s390x/pci: use a PCI Group structure

We use a S390PCIGroup structure to hold the information related to a
zPCI Function group.

This allows us to be ready to support multiple groups and to retrieve
the group information from the host.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h
index 5f339e57fb..869c0f254b 100644
--- a/include/hw/s390x/s390-pci-bus.h
+++ b/include/hw/s390x/s390-pci-bus.h
@@ -316,6 +316,14 @@ typedef struct ZpciFmb {
 } ZpciFmb;
 QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in ZpciFmb");
 
+#define ZPCI_DEFAULT_FN_GRP 0x20
+typedef struct S390PCIGroup {
+    ClpRspQueryPciGrp zpci_group;
+    int id;
+    QTAILQ_ENTRY(S390PCIGroup) link;
+} S390PCIGroup;
+S390PCIGroup *s390_group_find(int id);
+
 struct S390PCIBusDevice {
     DeviceState qdev;
     PCIDevice *pdev;
@@ -333,6 +341,7 @@ struct S390PCIBusDevice {
     uint16_t noi;
     uint16_t maxstbl;
     uint8_t sum;
+    S390PCIGroup *pci_group;
     S390MsixInfo msix;
     AdapterRoutes routes;
     S390PCIIOMMU *iommu;
@@ -358,6 +367,7 @@ struct S390pciState {
     QTAILQ_HEAD(, SeiContainer) pending_sei;
     QTAILQ_HEAD(, S390PCIBusDevice) zpci_devs;
     QTAILQ_HEAD(, S390PCIDMACount) zpci_dma_limit;
+    QTAILQ_HEAD(, S390PCIGroup) zpci_groups;
 };
 
 S390pciState *s390_get_phb(void);