Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20190218' into staging

s390x updates:
- tcg: implement STCK and friends for CONFIG_USER_ONLY
- add zpci to qemu cpu model, as pci is now always built
- add mepoch to default z14 cpu model
- add cpu model for z14 GA2
- various improvements

# gpg: Signature made Mon 18 Feb 2019 11:06:23 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20190218:
  s390x: upgrade status of KVM cores to "supported"
  s390x/kvm: add tracepoint to ioeventfd interface
  s390x/cpumodel: add z14 GA2 model
  s390x/cpumodel: default enable mepoch for z14 and later
  s390x/cpumodel: mepochptff: warn when no mepoch and re-align group init
  s390x: add zPCI feature to "qemu" CPU model
  target/s390x: Implement STCK et al for CONFIG_USER_ONLY
  target/s390x: Split out s390-tod.h
  s390x: always provide pci support
  s390x: Fix the confusing contributions-after-2012 license statements

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 5 insertions, 83 deletions

diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs
index a18c471913..bfd5326d7c 100644
--- a/hw/s390x/Makefile.objs
+++ b/hw/s390x/Makefile.objs
@@ -21,8 +21,7 @@ obj-$(call land,$(CONFIG_VIRTIO_9P),$(CONFIG_VIRTFS)) += virtio-ccw-9p.o
 obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock-ccw.o
 obj-y += css-bridge.o
 obj-y += ccw-device.o
-obj-$(CONFIG_PCI) += s390-pci-bus.o s390-pci-inst.o
-obj-$(call lnot,$(CONFIG_PCI)) += s390-pci-stub.o
+obj-y += s390-pci-bus.o s390-pci-inst.o
 obj-y += s390-skeys.o
 obj-y += s390-stattrib.o
 obj-y += tod.o
diff --git a/hw/s390x/s390-pci-stub.c b/hw/s390x/s390-pci-stub.c
deleted file mode 100644
index ad4c5a7719..0000000000
--- a/hw/s390x/s390-pci-stub.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* stubs for non-pci builds */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "s390-pci-inst.h"
-#include "s390-pci-bus.h"
-
-/* target/s390x/ioinst.c */
-int pci_chsc_sei_nt2_get_event(void *res)
-{
-    return 1;
-}
-
-int pci_chsc_sei_nt2_have_event(void)
-{
-    return 0;
-}
-
-/* hw/s390x/sclp.c */
-void s390_pci_sclp_configure(SCCB *sccb)
-{
-    sccb->h.response_code = cpu_to_be16(SCLP_RC_ADAPTER_TYPE_NOT_RECOGNIZED);
-}
-
-void s390_pci_sclp_deconfigure(SCCB *sccb)
-{
-    sccb->h.response_code = cpu_to_be16(SCLP_RC_ADAPTER_TYPE_NOT_RECOGNIZED);
-}
-
-/* target/s390x/kvm.c */
-int clp_service_call(S390CPU *cpu, uint8_t r2)
-{
-    return -1;
-}
-
-int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
-{
-    return -1;
-}
-
-int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
-{
-    return -1;
-}
-
-int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
-{
-    return -1;
-}
-
-int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
-{
-    return -1;
-}
-
-int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr,
-                        uint8_t ar)
-{
-    return -1;
-}
-
-int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
-{
-    return -1;
-}
-
-S390pciState *s390_get_phb(void)
-{
-    return NULL;
-}
-
-S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s,
-                                              const char *target)
-{
-    return NULL;
-}
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 811fdf913d..d11069b860 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -272,10 +272,6 @@ static void ccw_init(MachineState *machine)
                       machine->initrd_filename, "s390-ccw.img",
                       "s390-netboot.img", true);
 
-    /*
-     * We cannot easily make the pci host bridge conditional as older QEMUs
-     * always created it. Doing so would break migration across QEMU versions.
-     */
     dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
                               OBJECT(dev), NULL);
@@ -661,7 +657,11 @@ DEFINE_CCW_MACHINE(4_0, "4.0", true);
 
 static void ccw_machine_3_1_instance_options(MachineState *machine)
 {
+    static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
     ccw_machine_4_0_instance_options(machine);
+    s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
+    s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
+    s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
 }
 
 static void ccw_machine_3_1_class_options(MachineClass *mc)