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-rw-r--r--hw/i386/pc.c7
-rw-r--r--hw/i386/x86.c42
-rw-r--r--hw/s390x/s390-skeys.c2
-rw-r--r--hw/s390x/s390-stattrib-kvm.c4
-rw-r--r--hw/s390x/s390-virtio-ccw.c22
-rw-r--r--hw/s390x/sclp.c17
6 files changed, 69 insertions, 25 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 0bf0aaca52..5143c51653 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1526,6 +1526,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
 
     env->nr_dies = x86ms->smp_dies;
     env->nr_nodes = topo_info.nodes_per_pkg;
+    env->pkg_offset = x86ms->apicid_pkg_offset(&topo_info);
 
     /*
      * If APIC ID is not set,
@@ -1580,14 +1581,14 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
         topo_ids.die_id = cpu->die_id;
         topo_ids.core_id = cpu->core_id;
         topo_ids.smt_id = cpu->thread_id;
-        cpu->apic_id = x86_apicid_from_topo_ids(&topo_info, &topo_ids);
+        cpu->apic_id = x86ms->apicid_from_topo_ids(&topo_info, &topo_ids);
     }
 
     cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
     if (!cpu_slot) {
         MachineState *ms = MACHINE(pcms);
 
-        x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
+        x86ms->topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
         error_setg(errp,
             "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
             " APIC ID %" PRIu32 ", valid index range 0:%d",
@@ -1608,7 +1609,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
     /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
      * once -smp refactoring is complete and there will be CPU private
      * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
-    x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
+    x86ms->topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
     if (cpu->socket_id != -1 && cpu->socket_id != topo_ids.pkg_id) {
         error_setg(errp, "property socket-id: %u doesn't match set apic-id:"
             " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id,
diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 6ca3cf936f..b82770024c 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -69,6 +69,22 @@ inline void init_topo_info(X86CPUTopoInfo *topo_info,
 }
 
 /*
+ * Set up with the new EPYC topology handlers
+ *
+ * AMD uses different apic id encoding for EPYC based cpus. Override
+ * the default topo handlers with EPYC encoding handlers.
+ */
+static void x86_set_epyc_topo_handlers(MachineState *machine)
+{
+    X86MachineState *x86ms = X86_MACHINE(machine);
+
+    x86ms->apicid_from_cpu_idx = x86_apicid_from_cpu_idx_epyc;
+    x86ms->topo_ids_from_apicid = x86_topo_ids_from_apicid_epyc;
+    x86ms->apicid_from_topo_ids = x86_apicid_from_topo_ids_epyc;
+    x86ms->apicid_pkg_offset = apicid_pkg_offset_epyc;
+}
+
+/*
  * Calculates initial APIC ID for a specific CPU index
  *
  * Currently we need to be able to calculate the APIC ID from the CPU index
@@ -86,7 +102,7 @@ uint32_t x86_cpu_apic_id_from_index(X86MachineState *x86ms,
 
     init_topo_info(&topo_info, x86ms);
 
-    correct_id = x86_apicid_from_cpu_idx(&topo_info, cpu_index);
+    correct_id = x86ms->apicid_from_cpu_idx(&topo_info, cpu_index);
     if (x86mc->compat_apic_id_mode) {
         if (cpu_index != correct_id && !warned && !qtest_enabled()) {
             error_report("APIC IDs set in compatibility mode, "
@@ -121,6 +137,11 @@ void x86_cpus_init(X86MachineState *x86ms, int default_cpu_version)
     MachineState *ms = MACHINE(x86ms);
     MachineClass *mc = MACHINE_GET_CLASS(x86ms);
 
+    /* Check for apicid encoding */
+    if (cpu_x86_use_epyc_apic_id_encoding(ms->cpu_type)) {
+        x86_set_epyc_topo_handlers(ms);
+    }
+
     x86_cpu_set_default_version(default_cpu_version);
 
     /*
@@ -134,6 +155,12 @@ void x86_cpus_init(X86MachineState *x86ms, int default_cpu_version)
     x86ms->apic_id_limit = x86_cpu_apic_id_from_index(x86ms,
                                                       ms->smp.max_cpus - 1) + 1;
     possible_cpus = mc->possible_cpu_arch_ids(ms);
+
+    for (i = 0; i < ms->possible_cpus->len; i++) {
+        ms->possible_cpus->cpus[i].arch_id =
+            x86_cpu_apic_id_from_index(x86ms, i);
+    }
+
     for (i = 0; i < ms->smp.cpus; i++) {
         x86_cpu_new(x86ms, possible_cpus->cpus[i].arch_id, &error_fatal);
     }
@@ -158,8 +185,7 @@ int64_t x86_get_default_cpu_node_id(const MachineState *ms, int idx)
    init_topo_info(&topo_info, x86ms);
 
    assert(idx < ms->possible_cpus->len);
-   x86_topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id,
-                            &topo_info, &topo_ids);
+   x86_topo_ids_from_idx(&topo_info, idx, &topo_ids);
    return topo_ids.pkg_id % ms->numa_state->num_nodes;
 }
 
@@ -190,10 +216,7 @@ const CPUArchIdList *x86_possible_cpu_arch_ids(MachineState *ms)
 
         ms->possible_cpus->cpus[i].type = ms->cpu_type;
         ms->possible_cpus->cpus[i].vcpus_count = 1;
-        ms->possible_cpus->cpus[i].arch_id =
-            x86_cpu_apic_id_from_index(x86ms, i);
-        x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
-                                 &topo_info, &topo_ids);
+        x86_topo_ids_from_idx(&topo_info, i, &topo_ids);
         ms->possible_cpus->cpus[i].props.has_socket_id = true;
         ms->possible_cpus->cpus[i].props.socket_id = topo_ids.pkg_id;
         if (x86ms->smp_dies > 1) {
@@ -937,6 +960,11 @@ static void x86_machine_initfn(Object *obj)
     x86ms->acpi = ON_OFF_AUTO_AUTO;
     x86ms->max_ram_below_4g = 0; /* use default */
     x86ms->smp_dies = 1;
+
+    x86ms->apicid_from_cpu_idx = x86_apicid_from_cpu_idx;
+    x86ms->topo_ids_from_apicid = x86_topo_ids_from_apicid;
+    x86ms->apicid_from_topo_ids = x86_apicid_from_topo_ids;
+    x86ms->apicid_pkg_offset = apicid_pkg_offset;
 }
 
 static void x86_machine_class_init(ObjectClass *oc, void *data)
diff --git a/hw/s390x/s390-skeys.c b/hw/s390x/s390-skeys.c
index 5da6e5292f..a9a4ae7b39 100644
--- a/hw/s390x/s390-skeys.c
+++ b/hw/s390x/s390-skeys.c
@@ -176,7 +176,7 @@ static void qemu_s390_skeys_init(Object *obj)
     QEMUS390SKeysState *skeys = QEMU_S390_SKEYS(obj);
     MachineState *machine = MACHINE(qdev_get_machine());
 
-    skeys->key_count = machine->maxram_size / TARGET_PAGE_SIZE;
+    skeys->key_count = machine->ram_size / TARGET_PAGE_SIZE;
     skeys->keydata = g_malloc0(skeys->key_count);
 }
 
diff --git a/hw/s390x/s390-stattrib-kvm.c b/hw/s390x/s390-stattrib-kvm.c
index c7e1f35524..f89d8d9d16 100644
--- a/hw/s390x/s390-stattrib-kvm.c
+++ b/hw/s390x/s390-stattrib-kvm.c
@@ -85,7 +85,7 @@ static int kvm_s390_stattrib_set_stattr(S390StAttribState *sa,
 {
     KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
     MachineState *machine = MACHINE(qdev_get_machine());
-    unsigned long max = machine->maxram_size / TARGET_PAGE_SIZE;
+    unsigned long max = machine->ram_size / TARGET_PAGE_SIZE;
 
     if (start_gfn + count > max) {
         error_report("Out of memory bounds when setting storage attributes");
@@ -104,7 +104,7 @@ static void kvm_s390_stattrib_synchronize(S390StAttribState *sa)
 {
     KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
     MachineState *machine = MACHINE(qdev_get_machine());
-    unsigned long max = machine->maxram_size / TARGET_PAGE_SIZE;
+    unsigned long max = machine->ram_size / TARGET_PAGE_SIZE;
     /* We do not need to reach the maximum buffer size allowed */
     unsigned long cx, len = KVM_S390_SKEYS_MAX / 2;
     int r;
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 895498cca6..0fa00a9fff 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -26,6 +26,7 @@
 #include "qemu/ctype.h"
 #include "qemu/error-report.h"
 #include "qemu/option.h"
+#include "qemu/qemu-print.h"
 #include "s390-pci-bus.h"
 #include "sysemu/reset.h"
 #include "hw/s390x/storage-keys.h"
@@ -439,6 +440,26 @@ static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
     s390_cpu_restart(S390_CPU(cs));
 }
 
+static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
+{
+    /* same logic as in sclp.c */
+    int increment_size = 20;
+    ram_addr_t newsz;
+
+    while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
+        increment_size++;
+    }
+    newsz = sz >> increment_size << increment_size;
+
+    if (sz != newsz) {
+        qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
+                    "MB to match machine restrictions. Consider updating "
+                    "the guest definition.\n", (uint64_t) (sz / MiB),
+                    (uint64_t) (newsz / MiB));
+    }
+    return newsz;
+}
+
 static void ccw_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
@@ -668,6 +689,7 @@ static void ccw_machine_4_2_instance_options(MachineState *machine)
 static void ccw_machine_4_2_class_options(MachineClass *mc)
 {
     ccw_machine_5_0_class_options(mc);
+    mc->fixup_ram_size = s390_fixup_ram_size;
     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
 }
 DEFINE_CCW_MACHINE(4_2, "4.2", false);
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
index af0bfbc2ec..f0c35aa57a 100644
--- a/hw/s390x/sclp.c
+++ b/hw/s390x/sclp.c
@@ -327,27 +327,20 @@ out:
 static void sclp_memory_init(SCLPDevice *sclp)
 {
     MachineState *machine = MACHINE(qdev_get_machine());
+    MachineClass *machine_class = MACHINE_GET_CLASS(qdev_get_machine());
     ram_addr_t initial_mem = machine->ram_size;
     int increment_size = 20;
 
     /* The storage increment size is a multiple of 1M and is a power of 2.
-     * The number of storage increments must be MAX_STORAGE_INCREMENTS or fewer.
+     * For some machine types, the number of storage increments must be
+     * MAX_STORAGE_INCREMENTS or fewer.
      * The variable 'increment_size' is an exponent of 2 that can be
      * used to calculate the size (in bytes) of an increment. */
-    while ((initial_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
+    while (machine_class->fixup_ram_size != NULL &&
+           (initial_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
         increment_size++;
     }
     sclp->increment_size = increment_size;
-
-    /* The core memory area needs to be aligned with the increment size.
-     * In effect, this can cause the user-specified memory size to be rounded
-     * down to align with the nearest increment boundary. */
-    initial_mem = initial_mem >> increment_size << increment_size;
-
-    machine->ram_size = initial_mem;
-    machine->maxram_size = initial_mem;
-    /* let's propagate the changed ram size into the global variable. */
-    ram_size = initial_mem;
 }
 
 static void sclp_init(Object *obj)