qemu-kvm/0009-Add-s390x-machine-types.patch

From 07b2731f23166ca13bace5faacd35ab5129fb878 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 13:47:32 +0200
Subject: Add s390x machine types

Adding changes to add RHEL machine types for s390x architecture.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>

Merged patches (3.1.0):
- 29df663 s390x/cpumodel: default enable bpb and ppa15 for z196 and later
---
 hw/s390x/s390-virtio-ccw.c | 50 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index a0615a8..04f4c1a 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -627,7 +627,7 @@ bool css_migration_enabled(void)
     {                                                                         \
         MachineClass *mc = MACHINE_CLASS(oc);                                 \
         ccw_machine_##suffix##_class_options(mc);                             \
-        mc->desc = "VirtIO-ccw based S390 machine v" verstr;                  \
+        mc->desc = "VirtIO-ccw based S390 machine " verstr;                   \
         if (latest) {                                                         \
             mc->alias = "s390-ccw-virtio";                                    \
             mc->is_default = 1;                                               \
@@ -657,6 +657,8 @@ bool css_migration_enabled(void)
 #define CCW_COMPAT_2_12 \
         HW_COMPAT_2_12
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
+
 #define CCW_COMPAT_2_11 \
         HW_COMPAT_2_11 \
         {\
@@ -894,6 +896,52 @@ static void ccw_machine_2_4_class_options(MachineClass *mc)
 }
 DEFINE_CCW_MACHINE(2_4, "2.4", false);
 
+#else
+
+/*
+ * like CCW_COMPAT_2_11, but includes HW_COMPAT_RHEL7_5 (derived from
+ * HW_COMPAT_2_11 and HW_COMPAT_2_10) instead of HW_COMPAT_2_11
+ */
+#define CCW_COMPAT_RHEL7_5 \
+        HW_COMPAT_RHEL7_5 \
+        {\
+            .driver   = TYPE_SCLP_EVENT_FACILITY,\
+            .property = "allow_all_mask_sizes",\
+            .value    = "off",\
+        },
+
+static void ccw_machine_rhel760_instance_options(MachineState *machine)
+{
+}
+
+static void ccw_machine_rhel760_class_options(MachineClass *mc)
+{
+}
+DEFINE_CCW_MACHINE(rhel760, "rhel7.6.0", true);
+
+static void ccw_machine_rhel750_instance_options(MachineState *machine)
+{
+    static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
+    ccw_machine_rhel760_instance_options(machine);
+
+    /* before 2.12 we emulated the very first z900, and RHEL 7.5 is
+       based on 2.10 */
+    s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
+
+    /* bpb and ppa15 were only in the full model in RHEL 7.5 */
+    s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
+    s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
+}
+
+static void ccw_machine_rhel750_class_options(MachineClass *mc)
+{
+    ccw_machine_rhel760_class_options(mc);
+    SET_MACHINE_COMPAT(mc, CCW_COMPAT_RHEL7_5);
+}
+DEFINE_CCW_MACHINE(rhel750, "rhel7.5.0", false);
+
+#endif
+
 static void ccw_machine_register_types(void)
 {
     type_register_static(&ccw_machine_info);
-- 
1.8.3.1