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Diffstat (limited to 'hw/i386/pc_piix.c')
-rw-r--r--hw/i386/pc_piix.c304
1 files changed, 112 insertions, 192 deletions
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 0dce512..7e78b6d 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -27,20 +27,16 @@
#include "qemu/units.h"
#include "hw/char/parallel-isa.h"
-#include "hw/dma/i8257.h"
-#include "hw/loader.h"
#include "hw/i386/x86.h"
#include "hw/i386/pc.h"
#include "hw/i386/apic.h"
#include "hw/pci-host/i440fx.h"
-#include "hw/rtc/mc146818rtc.h"
#include "hw/southbridge/piix.h"
#include "hw/display/ramfb.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_ids.h"
#include "hw/usb.h"
#include "net/net.h"
-#include "hw/ide/isa.h"
#include "hw/ide/pci.h"
#include "hw/irq.h"
#include "system/kvm.h"
@@ -49,6 +45,7 @@
#include "hw/i2c/smbus_eeprom.h"
#include "system/memory.h"
#include "hw/acpi/acpi.h"
+#include "hw/vfio/types.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "system/xen.h"
@@ -71,11 +68,12 @@
#define XEN_IOAPIC_NUM_PIRQS 128ULL
-#ifdef CONFIG_IDE_ISA
-static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
-static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
-static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
-#endif
+static GlobalProperty pc_piix_compat_defaults[] = {
+ { TYPE_RAMFB_DEVICE, "use-legacy-x86-rom", "true" },
+ { TYPE_VFIO_PCI_NOHOTPLUG, "use-legacy-x86-rom", "true" },
+};
+static const size_t pc_piix_compat_defaults_len =
+ G_N_ELEMENTS(pc_piix_compat_defaults);
/*
* Return the global irq number corresponding to a given device irq
@@ -115,9 +113,13 @@ static void pc_init1(MachineState *machine, const char *pci_type)
GSIState *gsi_state;
MemoryRegion *ram_memory;
MemoryRegion *pci_memory = NULL;
- MemoryRegion *rom_memory = system_memory;
ram_addr_t lowmem;
uint64_t hole64_size = 0;
+ PCIDevice *pci_dev;
+ DeviceState *dev;
+ size_t i;
+
+ assert(pcmc->pci_enabled);
/*
* Calculate ram split, for memory below and above 4G. It's a bit
@@ -188,42 +190,39 @@ static void pc_init1(MachineState *machine, const char *pci_type)
kvmclock_create(pcmc->kvmclock_create_always);
}
- if (pcmc->pci_enabled) {
- pci_memory = g_new(MemoryRegion, 1);
- memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
- rom_memory = pci_memory;
-
- phb = OBJECT(qdev_new(TYPE_I440FX_PCI_HOST_BRIDGE));
- object_property_add_child(OBJECT(machine), "i440fx", phb);
- object_property_set_link(phb, PCI_HOST_PROP_RAM_MEM,
- OBJECT(ram_memory), &error_fatal);
- object_property_set_link(phb, PCI_HOST_PROP_PCI_MEM,
- OBJECT(pci_memory), &error_fatal);
- object_property_set_link(phb, PCI_HOST_PROP_SYSTEM_MEM,
- OBJECT(system_memory), &error_fatal);
- object_property_set_link(phb, PCI_HOST_PROP_IO_MEM,
- OBJECT(system_io), &error_fatal);
- object_property_set_uint(phb, PCI_HOST_BELOW_4G_MEM_SIZE,
- x86ms->below_4g_mem_size, &error_fatal);
- object_property_set_uint(phb, PCI_HOST_ABOVE_4G_MEM_SIZE,
- x86ms->above_4g_mem_size, &error_fatal);
- object_property_set_str(phb, I440FX_HOST_PROP_PCI_TYPE, pci_type,
- &error_fatal);
- sysbus_realize_and_unref(SYS_BUS_DEVICE(phb), &error_fatal);
-
- pcms->pcibus = PCI_BUS(qdev_get_child_bus(DEVICE(phb), "pci.0"));
- pci_bus_map_irqs(pcms->pcibus,
- xen_enabled() ? xen_pci_slot_get_pirq
- : pc_pci_slot_get_pirq);
-
- hole64_size = object_property_get_uint(phb,
- PCI_HOST_PROP_PCI_HOLE64_SIZE,
- &error_abort);
- }
+ pci_memory = g_new(MemoryRegion, 1);
+ memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
+
+ phb = OBJECT(qdev_new(TYPE_I440FX_PCI_HOST_BRIDGE));
+ object_property_add_child(OBJECT(machine), "i440fx", phb);
+ object_property_set_link(phb, PCI_HOST_PROP_RAM_MEM,
+ OBJECT(ram_memory), &error_fatal);
+ object_property_set_link(phb, PCI_HOST_PROP_PCI_MEM,
+ OBJECT(pci_memory), &error_fatal);
+ object_property_set_link(phb, PCI_HOST_PROP_SYSTEM_MEM,
+ OBJECT(system_memory), &error_fatal);
+ object_property_set_link(phb, PCI_HOST_PROP_IO_MEM,
+ OBJECT(system_io), &error_fatal);
+ object_property_set_uint(phb, PCI_HOST_BELOW_4G_MEM_SIZE,
+ x86ms->below_4g_mem_size, &error_fatal);
+ object_property_set_uint(phb, PCI_HOST_ABOVE_4G_MEM_SIZE,
+ x86ms->above_4g_mem_size, &error_fatal);
+ object_property_set_str(phb, I440FX_HOST_PROP_PCI_TYPE, pci_type,
+ &error_fatal);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(phb), &error_fatal);
+
+ pcms->pcibus = PCI_BUS(qdev_get_child_bus(DEVICE(phb), "pci.0"));
+ pci_bus_map_irqs(pcms->pcibus,
+ xen_enabled() ? xen_pci_slot_get_pirq
+ : pc_pci_slot_get_pirq);
+
+ hole64_size = object_property_get_uint(phb,
+ PCI_HOST_PROP_PCI_HOLE64_SIZE,
+ &error_abort);
/* allocate ram and load rom/bios */
if (!xen_enabled()) {
- pc_memory_init(pcms, system_memory, rom_memory, hole64_size);
+ pc_memory_init(pcms, system_memory, pci_memory, hole64_size);
} else {
assert(machine->ram_size == x86ms->below_4g_mem_size +
x86ms->above_4g_mem_size);
@@ -235,67 +234,51 @@ static void pc_init1(MachineState *machine, const char *pci_type)
}
}
- gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled);
-
- if (pcmc->pci_enabled) {
- PCIDevice *pci_dev;
- DeviceState *dev;
- size_t i;
-
- pci_dev = pci_new_multifunction(-1, pcms->south_bridge);
- object_property_set_bool(OBJECT(pci_dev), "has-usb",
- machine_usb(machine), &error_abort);
- object_property_set_bool(OBJECT(pci_dev), "has-acpi",
- x86_machine_is_acpi_enabled(x86ms),
- &error_abort);
- object_property_set_bool(OBJECT(pci_dev), "has-pic", false,
- &error_abort);
- object_property_set_bool(OBJECT(pci_dev), "has-pit", false,
- &error_abort);
- qdev_prop_set_uint32(DEVICE(pci_dev), "smb_io_base", 0xb100);
- object_property_set_bool(OBJECT(pci_dev), "smm-enabled",
- x86_machine_is_smm_enabled(x86ms),
- &error_abort);
- dev = DEVICE(pci_dev);
- for (i = 0; i < ISA_NUM_IRQS; i++) {
- qdev_connect_gpio_out_named(dev, "isa-irqs", i, x86ms->gsi[i]);
- }
- pci_realize_and_unref(pci_dev, pcms->pcibus, &error_fatal);
-
- if (xen_enabled()) {
- pci_device_set_intx_routing_notifier(
- pci_dev, piix_intx_routing_notifier_xen);
-
- /*
- * Xen supports additional interrupt routes from the PCI devices to
- * the IOAPIC: the four pins of each PCI device on the bus are also
- * connected to the IOAPIC directly.
- * These additional routes can be discovered through ACPI.
- */
- pci_bus_irqs(pcms->pcibus, xen_intx_set_irq, pci_dev,
- XEN_IOAPIC_NUM_PIRQS);
- }
+ gsi_state = pc_gsi_create(&x86ms->gsi, true);
+
+ pci_dev = pci_new_multifunction(-1, pcms->south_bridge);
+ object_property_set_bool(OBJECT(pci_dev), "has-usb",
+ machine_usb(machine), &error_abort);
+ object_property_set_bool(OBJECT(pci_dev), "has-acpi",
+ x86_machine_is_acpi_enabled(x86ms),
+ &error_abort);
+ object_property_set_bool(OBJECT(pci_dev), "has-pic", false,
+ &error_abort);
+ object_property_set_bool(OBJECT(pci_dev), "has-pit", false,
+ &error_abort);
+ qdev_prop_set_uint32(DEVICE(pci_dev), "smb_io_base", 0xb100);
+ object_property_set_bool(OBJECT(pci_dev), "smm-enabled",
+ x86_machine_is_smm_enabled(x86ms),
+ &error_abort);
+ dev = DEVICE(pci_dev);
+ for (i = 0; i < ISA_NUM_IRQS; i++) {
+ qdev_connect_gpio_out_named(dev, "isa-irqs", i, x86ms->gsi[i]);
+ }
+ pci_realize_and_unref(pci_dev, pcms->pcibus, &error_fatal);
- isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
- x86ms->rtc = ISA_DEVICE(object_resolve_path_component(OBJECT(pci_dev),
- "rtc"));
- piix4_pm = object_resolve_path_component(OBJECT(pci_dev), "pm");
- dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ide"));
- pci_ide_create_devs(PCI_DEVICE(dev));
- pcms->idebus[0] = qdev_get_child_bus(dev, "ide.0");
- pcms->idebus[1] = qdev_get_child_bus(dev, "ide.1");
- } else {
- isa_bus = isa_bus_new(NULL, system_memory, system_io,
- &error_abort);
- isa_bus_register_input_irqs(isa_bus, x86ms->gsi);
+ if (xen_enabled()) {
+ pci_device_set_intx_routing_notifier(
+ pci_dev, piix_intx_routing_notifier_xen);
+
+ /*
+ * Xen supports additional interrupt routes from the PCI devices to
+ * the IOAPIC: the four pins of each PCI device on the bus are also
+ * connected to the IOAPIC directly.
+ * These additional routes can be discovered through ACPI.
+ */
+ pci_bus_irqs(pcms->pcibus, xen_intx_set_irq, pci_dev,
+ XEN_IOAPIC_NUM_PIRQS);
+ }
- x86ms->rtc = isa_new(TYPE_MC146818_RTC);
- qdev_prop_set_int32(DEVICE(x86ms->rtc), "base_year", 2000);
- isa_realize_and_unref(x86ms->rtc, isa_bus, &error_fatal);
+ isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
+ x86ms->rtc = ISA_DEVICE(object_resolve_path_component(OBJECT(pci_dev),
+ "rtc"));
+ piix4_pm = object_resolve_path_component(OBJECT(pci_dev), "pm");
+ dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ide"));
+ pci_ide_create_devs(PCI_DEVICE(dev));
+ pcms->idebus[0] = qdev_get_child_bus(dev, "ide.0");
+ pcms->idebus[1] = qdev_get_child_bus(dev, "ide.1");
- i8257_dma_init(OBJECT(machine), isa_bus, 0);
- pcms->hpet_enabled = false;
- }
if (x86ms->pic == ON_OFF_AUTO_ON || x86ms->pic == ON_OFF_AUTO_AUTO) {
pc_i8259_create(isa_bus, gsi_state->i8259_irq);
@@ -309,7 +292,7 @@ static void pc_init1(MachineState *machine, const char *pci_type)
x86_register_ferr_irq(x86ms->gsi[13]);
}
- pc_vga_init(isa_bus, pcmc->pci_enabled ? pcms->pcibus : NULL);
+ pc_vga_init(isa_bus, pcms->pcibus);
/* init basic PC hardware */
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, x86ms->rtc,
@@ -317,28 +300,6 @@ static void pc_init1(MachineState *machine, const char *pci_type)
pc_nic_init(pcmc, isa_bus, pcms->pcibus);
-#ifdef CONFIG_IDE_ISA
- if (!pcmc->pci_enabled) {
- DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
- int i;
-
- ide_drive_get(hd, ARRAY_SIZE(hd));
- for (i = 0; i < MAX_IDE_BUS; i++) {
- ISADevice *dev;
- char busname[] = "ide.0";
- dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
- ide_irq[i],
- hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
- /*
- * The ide bus name is ide.0 for the first bus and ide.1 for the
- * second one.
- */
- busname[4] = '0' + i;
- pcms->idebus[i] = qdev_get_child_bus(DEVICE(dev), busname);
- }
- }
-#endif
-
if (piix4_pm) {
smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0);
@@ -361,6 +322,16 @@ static void pc_init1(MachineState *machine, const char *pci_type)
x86_nvdimm_acpi_dsmio,
x86ms->fw_cfg, OBJECT(pcms));
}
+
+#if defined(CONFIG_IGVM)
+ /* Apply guest state from IGVM if supplied */
+ if (x86ms->igvm) {
+ if (IGVM_CFG_GET_CLASS(x86ms->igvm)
+ ->process(x86ms->igvm, machine->cgs, false, &error_fatal) < 0) {
+ g_assert_not_reached();
+ }
+ }
+#endif
}
typedef enum PCSouthBridgeOption {
@@ -410,22 +381,7 @@ static void pc_set_south_bridge(Object *obj, int value, Error **errp)
pcms->south_bridge = PCSouthBridgeOption_lookup.array[value];
}
-#ifdef CONFIG_ISAPC
-static void pc_init_isa(MachineState *machine)
-{
- pc_init1(machine, NULL);
-}
-#endif
-
#ifdef CONFIG_XEN
-static void pc_xen_hvm_init_pci(MachineState *machine)
-{
- const char *pci_type = xen_igd_gfx_pt_enabled() ?
- TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE;
-
- pc_init1(machine, pci_type);
-}
-
static void pc_xen_hvm_init(MachineState *machine)
{
PCMachineState *pcms = PC_MACHINE(machine);
@@ -435,7 +391,10 @@ static void pc_xen_hvm_init(MachineState *machine)
exit(1);
}
- pc_xen_hvm_init_pci(machine);
+ pc_init1(machine, xen_igd_gfx_pt_enabled()
+ ? TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE
+ : TYPE_I440FX_PCI_DEVICE);
+
xen_igd_reserve_slot(pcms->pcibus);
pci_create_simple(pcms->pcibus, -1, "xen-platform");
}
@@ -477,14 +436,25 @@ static void pc_i440fx_machine_options(MachineClass *m)
pc_set_south_bridge);
object_class_property_set_description(oc, "x-south-bridge",
"Use a different south bridge than PIIX3");
+ compat_props_add(m->compat_props,
+ pc_piix_compat_defaults, pc_piix_compat_defaults_len);
}
-static void pc_i440fx_machine_10_1_options(MachineClass *m)
+static void pc_i440fx_machine_10_2_options(MachineClass *m)
{
pc_i440fx_machine_options(m);
}
-DEFINE_I440FX_MACHINE_AS_LATEST(10, 1);
+DEFINE_I440FX_MACHINE_AS_LATEST(10, 2);
+
+static void pc_i440fx_machine_10_1_options(MachineClass *m)
+{
+ pc_i440fx_machine_10_2_options(m);
+ compat_props_add(m->compat_props, hw_compat_10_1, hw_compat_10_1_len);
+ compat_props_add(m->compat_props, pc_compat_10_1, pc_compat_10_1_len);
+}
+
+DEFINE_I440FX_MACHINE(10, 1);
static void pc_i440fx_machine_10_0_options(MachineClass *m)
{
@@ -778,56 +748,6 @@ static void pc_i440fx_machine_2_6_options(MachineClass *m)
DEFINE_I440FX_MACHINE(2, 6);
-static void pc_i440fx_machine_2_5_options(MachineClass *m)
-{
- X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
-
- pc_i440fx_machine_2_6_options(m);
- x86mc->save_tsc_khz = false;
- m->legacy_fw_cfg_order = 1;
- compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
- compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
-}
-
-DEFINE_I440FX_MACHINE(2, 5);
-
-static void pc_i440fx_machine_2_4_options(MachineClass *m)
-{
- PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-
- pc_i440fx_machine_2_5_options(m);
- m->hw_version = "2.4.0";
- pcmc->broken_reserved_end = true;
- compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
- compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
-}
-
-DEFINE_I440FX_MACHINE(2, 4);
-
-#ifdef CONFIG_ISAPC
-static void isapc_machine_options(MachineClass *m)
-{
- PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
- m->desc = "ISA-only PC";
- m->max_cpus = 1;
- m->option_rom_has_mr = true;
- m->rom_file_has_mr = false;
- pcmc->pci_enabled = false;
- pcmc->has_acpi_build = false;
- pcmc->smbios_defaults = false;
- pcmc->gigabyte_align = false;
- pcmc->smbios_legacy_mode = true;
- pcmc->has_reserved_memory = false;
- m->default_nic = "ne2k_isa";
- m->default_cpu_type = X86_CPU_TYPE_NAME("486");
- m->no_floppy = !module_object_class_by_name(TYPE_ISA_FDC);
- m->no_parallel = !module_object_class_by_name(TYPE_ISA_PARALLEL);
-}
-
-DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
- isapc_machine_options);
-#endif
-
#ifdef CONFIG_XEN
static void xenfv_machine_4_2_options(MachineClass *m)
{
generated by cgit v1.1 at 2025-09-01 18:16:57 +0000