hw/i386: split PCMachineState deriving X86MachineState from it

Split up PCMachineState and PCMachineClass and derive X86MachineState
and X86MachineClass from them. This allows sharing code with non-PC
x86 machine types.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 18 insertions, 17 deletions

diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 8920bd8978..374ac6c068 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -116,6 +116,7 @@ static void pc_q35_init(MachineState *machine)
 {
     PCMachineState *pcms = PC_MACHINE(machine);
     PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
+    X86MachineState *x86ms = X86_MACHINE(machine);
     Q35PCIHost *q35_host;
     PCIHostState *phb;
     PCIBus *host_bus;
@@ -153,27 +154,27 @@ static void pc_q35_init(MachineState *machine)
     /* Handle the machine opt max-ram-below-4g.  It is basically doing
      * min(qemu limit, user limit).
      */
-    if (!pcms->max_ram_below_4g) {
-        pcms->max_ram_below_4g = 1ULL << 32; /* default: 4G */;
+    if (!x86ms->max_ram_below_4g) {
+        x86ms->max_ram_below_4g = 4 * GiB;
     }
-    if (lowmem > pcms->max_ram_below_4g) {
-        lowmem = pcms->max_ram_below_4g;
+    if (lowmem > x86ms->max_ram_below_4g) {
+        lowmem = x86ms->max_ram_below_4g;
         if (machine->ram_size - lowmem > lowmem &&
             lowmem & (1 * GiB - 1)) {
             warn_report("There is possibly poor performance as the ram size "
                         " (0x%" PRIx64 ") is more then twice the size of"
                         " max-ram-below-4g (%"PRIu64") and"
                         " max-ram-below-4g is not a multiple of 1G.",
-                        (uint64_t)machine->ram_size, pcms->max_ram_below_4g);
+                        (uint64_t)machine->ram_size, x86ms->max_ram_below_4g);
         }
     }
 
     if (machine->ram_size >= lowmem) {
-        pcms->above_4g_mem_size = machine->ram_size - lowmem;
-        pcms->below_4g_mem_size = lowmem;
+        x86ms->above_4g_mem_size = machine->ram_size - lowmem;
+        x86ms->below_4g_mem_size = lowmem;
     } else {
-        pcms->above_4g_mem_size = 0;
-        pcms->below_4g_mem_size = machine->ram_size;
+        x86ms->above_4g_mem_size = 0;
+        x86ms->below_4g_mem_size = machine->ram_size;
     }
 
     if (xen_enabled()) {
@@ -214,10 +215,10 @@ static void pc_q35_init(MachineState *machine)
     gsi_state = g_malloc0(sizeof(*gsi_state));
     if (kvm_ioapic_in_kernel()) {
         kvm_pc_setup_irq_routing(pcmc->pci_enabled);
-        pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
+        x86ms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
                                        GSI_NUM_PINS);
     } else {
-        pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
+        x86ms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
     }
 
     /* create pci host bus */
@@ -232,9 +233,9 @@ static void pc_q35_init(MachineState *machine)
                              MCH_HOST_PROP_SYSTEM_MEM, NULL);
     object_property_set_link(OBJECT(q35_host), OBJECT(system_io),
                              MCH_HOST_PROP_IO_MEM, NULL);
-    object_property_set_int(OBJECT(q35_host), pcms->below_4g_mem_size,
+    object_property_set_int(OBJECT(q35_host), x86ms->below_4g_mem_size,
                             PCI_HOST_BELOW_4G_MEM_SIZE, NULL);
-    object_property_set_int(OBJECT(q35_host), pcms->above_4g_mem_size,
+    object_property_set_int(OBJECT(q35_host), x86ms->above_4g_mem_size,
                             PCI_HOST_ABOVE_4G_MEM_SIZE, NULL);
     /* pci */
     qdev_init_nofail(DEVICE(q35_host));
@@ -256,7 +257,7 @@ static void pc_q35_init(MachineState *machine)
     ich9_lpc = ICH9_LPC_DEVICE(lpc);
     lpc_dev = DEVICE(lpc);
     for (i = 0; i < GSI_NUM_PINS; i++) {
-        qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, pcms->gsi[i]);
+        qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, x86ms->gsi[i]);
     }
     pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
                  ICH9_LPC_NB_PIRQS);
@@ -280,7 +281,7 @@ static void pc_q35_init(MachineState *machine)
         ioapic_init_gsi(gsi_state, "q35");
     }
 
-    pc_register_ferr_irq(pcms->gsi[13]);
+    pc_register_ferr_irq(x86ms->gsi[13]);
 
     assert(pcms->vmport != ON_OFF_AUTO__MAX);
     if (pcms->vmport == ON_OFF_AUTO_AUTO) {
@@ -288,7 +289,7 @@ static void pc_q35_init(MachineState *machine)
     }
 
     /* init basic PC hardware */
-    pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, !mc->no_floppy,
+    pc_basic_device_init(isa_bus, x86ms->gsi, &rtc_state, !mc->no_floppy,
                          (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit_enabled,
                          0xff0104);
 
@@ -331,7 +332,7 @@ static void pc_q35_init(MachineState *machine)
 
     if (machine->nvdimms_state->is_enabled) {
         nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
-                               pcms->fw_cfg, OBJECT(pcms));
+                               x86ms->fw_cfg, OBJECT(pcms));
     }
 }