* THE SOFTWARE.
*/
-#include <glib.h>
+#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/loader.h"
#include "hw/kvm/clock.h"
#include "sysemu/sysemu.h"
#include "hw/sysbus.h"
-#include "hw/cpu/icc_bus.h"
#include "sysemu/arch_init.h"
#include "sysemu/block-backend.h"
#include "hw/i2c/smbus.h"
#include "hw/xen/xen_pt.h"
#endif
#include "migration/migration.h"
+#include "kvm_i386.h"
#define MAX_IDE_BUS 2
static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
-static bool pci_enabled = true;
-static bool has_acpi_build = true;
-static bool rsdp_in_ram = true;
-static int legacy_acpi_table_size;
-static bool smbios_defaults = true;
-static bool smbios_legacy_mode;
-static bool smbios_uuid_encoded = true;
-/* Make sure that guest addresses aligned at 1Gbyte boundaries get mapped to
- * host addresses aligned at 1Gbyte boundaries. This way we can use 1GByte
- * pages in the host.
- */
-static bool gigabyte_align = true;
-static bool has_reserved_memory = true;
-static bool kvmclock_enabled = true;
-
/* PC hardware initialisation */
static void pc_init1(MachineState *machine,
const char *host_type, const char *pci_type)
{
PCMachineState *pcms = PC_MACHINE(machine);
+ PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
MemoryRegion *system_memory = get_system_memory();
MemoryRegion *system_io = get_system_io();
int i;
MemoryRegion *ram_memory;
MemoryRegion *pci_memory;
MemoryRegion *rom_memory;
- DeviceState *icc_bridge;
- PcGuestInfo *guest_info;
ram_addr_t lowmem;
- /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory).
- * If it doesn't, we need to split it in chunks below and above 4G.
- * In any case, try to make sure that guest addresses aligned at
- * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
- * For old machine types, use whatever split we used historically to avoid
- * breaking migration.
- */
- if (machine->ram_size >= 0xe0000000) {
- lowmem = gigabyte_align ? 0xc0000000 : 0xe0000000;
- } else {
- lowmem = 0xe0000000;
- }
-
- /* Handle the machine opt max-ram-below-4g. It is basically doing
- * min(qemu limit, user limit).
+ /*
+ * Calculate ram split, for memory below and above 4G. It's a bit
+ * complicated for backward compatibility reasons ...
+ *
+ * - Traditional split is 3.5G (lowmem = 0xe0000000). This is the
+ * default value for max_ram_below_4g now.
+ *
+ * - Then, to gigabyte align the memory, we move the split to 3G
+ * (lowmem = 0xc0000000). But only in case we have to split in
+ * the first place, i.e. ram_size is larger than (traditional)
+ * lowmem. And for new machine types (gigabyte_align = true)
+ * only, for live migration compatibility reasons.
+ *
+ * - Next the max-ram-below-4g option was added, which allowed to
+ * reduce lowmem to a smaller value, to allow a larger PCI I/O
+ * window below 4G. qemu doesn't enforce gigabyte alignment here,
+ * but prints a warning.
+ *
+ * - Finally max-ram-below-4g got updated to also allow raising lowmem,
+ * so legacy non-PAE guests can get as much memory as possible in
+ * the 32bit address space below 4G.
+ *
+ * Examples:
+ * qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high
+ * qemu -M pc -m 4G (new default) -> 3072M low, 1024M high
+ * qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high
+ * qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M)
*/
- if (lowmem > pcms->max_ram_below_4g) {
- lowmem = pcms->max_ram_below_4g;
- if (machine->ram_size - lowmem > lowmem &&
- lowmem & ((1ULL << 30) - 1)) {
- error_report("Warning: Large machine and max_ram_below_4g(%"PRIu64
- ") not a multiple of 1G; possible bad performance.",
- pcms->max_ram_below_4g);
+ lowmem = pcms->max_ram_below_4g;
+ if (machine->ram_size >= pcms->max_ram_below_4g) {
+ if (pcmc->gigabyte_align) {
+ if (lowmem > 0xc0000000) {
+ lowmem = 0xc0000000;
+ }
+ if (lowmem & ((1ULL << 30) - 1)) {
+ error_report("Warning: Large machine and max_ram_below_4g "
+ "(%" PRIu64 ") not a multiple of 1G; "
+ "possible bad performance.",
+ pcms->max_ram_below_4g);
+ }
}
}
pcms->below_4g_mem_size = machine->ram_size;
}
- if (xen_enabled() && xen_hvm_init(pcms, &ram_memory) != 0) {
- fprintf(stderr, "xen hardware virtual machine initialisation failed\n");
- exit(1);
+ if (xen_enabled()) {
+ xen_hvm_init(pcms, &ram_memory);
}
- icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE);
- object_property_add_child(qdev_get_machine(), "icc-bridge",
- OBJECT(icc_bridge), NULL);
+ pc_cpus_init(pcms);
- pc_cpus_init(machine->cpu_model, icc_bridge);
-
- if (kvm_enabled() && kvmclock_enabled) {
+ if (kvm_enabled() && pcmc->kvmclock_enabled) {
kvmclock_create();
}
- if (pci_enabled) {
+ if (pcmc->pci_enabled) {
pci_memory = g_new(MemoryRegion, 1);
memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
rom_memory = pci_memory;
rom_memory = system_memory;
}
- guest_info = pc_guest_info_init(pcms);
-
- guest_info->has_acpi_build = has_acpi_build;
- guest_info->legacy_acpi_table_size = legacy_acpi_table_size;
+ pc_guest_info_init(pcms);
- guest_info->isapc_ram_fw = !pci_enabled;
- guest_info->has_reserved_memory = has_reserved_memory;
- guest_info->rsdp_in_ram = rsdp_in_ram;
-
- if (smbios_defaults) {
+ if (pcmc->smbios_defaults) {
MachineClass *mc = MACHINE_GET_CLASS(machine);
/* These values are guest ABI, do not change */
smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
- mc->name, smbios_legacy_mode, smbios_uuid_encoded,
+ mc->name, pcmc->smbios_legacy_mode,
+ pcmc->smbios_uuid_encoded,
SMBIOS_ENTRY_POINT_21);
}
/* allocate ram and load rom/bios */
if (!xen_enabled()) {
pc_memory_init(pcms, system_memory,
- rom_memory, &ram_memory, guest_info);
+ rom_memory, &ram_memory);
} else if (machine->kernel_filename != NULL) {
/* For xen HVM direct kernel boot, load linux here */
- xen_load_linux(pcms, guest_info);
+ xen_load_linux(pcms);
}
gsi_state = g_malloc0(sizeof(*gsi_state));
- if (kvm_irqchip_in_kernel()) {
- kvm_pc_setup_irq_routing(pci_enabled);
+ if (kvm_ioapic_in_kernel()) {
+ kvm_pc_setup_irq_routing(pcmc->pci_enabled);
gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
GSI_NUM_PINS);
} else {
gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
}
- if (pci_enabled) {
+ if (pcmc->pci_enabled) {
pci_bus = i440fx_init(host_type,
pci_type,
&i440fx_state, &piix3_devfn, &isa_bus, gsi,
pcms->below_4g_mem_size,
pcms->above_4g_mem_size,
pci_memory, ram_memory);
+ pcms->bus = pci_bus;
} else {
pci_bus = NULL;
i440fx_state = NULL;
- isa_bus = isa_bus_new(NULL, get_system_memory(), system_io);
+ isa_bus = isa_bus_new(NULL, get_system_memory(), system_io,
+ &error_abort);
no_hpet = 1;
}
isa_bus_irqs(isa_bus, gsi);
- if (kvm_irqchip_in_kernel()) {
+ if (kvm_pic_in_kernel()) {
i8259 = kvm_i8259_init(isa_bus);
} else if (xen_enabled()) {
i8259 = xen_interrupt_controller_init();
gsi_state->i8259_irq[i] = i8259[i];
}
g_free(i8259);
- if (pci_enabled) {
+ if (pcmc->pci_enabled) {
ioapic_init_gsi(gsi_state, "i440fx");
}
- qdev_init_nofail(icc_bridge);
pc_register_ferr_irq(gsi[13]);
- pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
+ pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL);
- assert(pcms->vmport != ON_OFF_AUTO_MAX);
+ assert(pcms->vmport != ON_OFF_AUTO__MAX);
if (pcms->vmport == ON_OFF_AUTO_AUTO) {
pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
}
pc_nic_init(isa_bus, pci_bus);
ide_drive_get(hd, ARRAY_SIZE(hd));
- if (pci_enabled) {
+ if (pcmc->pci_enabled) {
PCIDevice *dev;
if (xen_enabled()) {
dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
- if (pci_enabled && usb_enabled()) {
+ if (pcmc->pci_enabled && usb_enabled()) {
pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
}
- if (pci_enabled && acpi_enabled) {
+ if (pcmc->pci_enabled && acpi_enabled) {
DeviceState *piix4_pm;
I2CBus *smbus;
PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
}
- if (pci_enabled) {
+ if (pcmc->pci_enabled) {
pc_pci_device_init(pci_bus);
}
+
+ if (pcms->acpi_nvdimm_state.is_enabled) {
+ nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io,
+ pcms->fw_cfg, OBJECT(pcms));
+ }
}
/* Looking for a pc_compat_2_4() function? It doesn't exist.
static void pc_compat_2_2(MachineState *machine)
{
pc_compat_2_3(machine);
- rsdp_in_ram = false;
machine->suppress_vmdesc = true;
}
static void pc_compat_2_1(MachineState *machine)
{
- PCMachineState *pcms = PC_MACHINE(machine);
-
pc_compat_2_2(machine);
- smbios_uuid_encoded = false;
- x86_cpu_compat_kvm_no_autodisable(FEAT_8000_0001_ECX, CPUID_EXT3_SVM);
- pcms->enforce_aligned_dimm = false;
+ x86_cpu_change_kvm_default("svm", NULL);
}
static void pc_compat_2_0(MachineState *machine)
{
pc_compat_2_1(machine);
- /* This value depends on the actual DSDT and SSDT compiled into
- * the source QEMU; unfortunately it depends on the binary and
- * not on the machine type, so we cannot make pc-i440fx-1.7 work on
- * both QEMU 1.7 and QEMU 2.0.
- *
- * Large variations cause migration to fail for more than one
- * consecutive value of the "-smp" maxcpus option.
- *
- * For small variations of the kind caused by different iasl versions,
- * the 4k rounding usually leaves slack. However, there could be still
- * one or two values that break. For QEMU 1.7 and QEMU 2.0 the
- * slack is only ~10 bytes before one "-smp maxcpus" value breaks!
- *
- * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on
- * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418.
- */
- legacy_acpi_table_size = 6652;
- smbios_legacy_mode = true;
- has_reserved_memory = false;
- pc_set_legacy_acpi_data_size();
}
static void pc_compat_1_7(MachineState *machine)
{
pc_compat_2_0(machine);
- smbios_defaults = false;
- gigabyte_align = false;
- option_rom_has_mr = true;
- legacy_acpi_table_size = 6414;
- x86_cpu_compat_kvm_no_autoenable(FEAT_1_ECX, CPUID_EXT_X2APIC);
+ x86_cpu_change_kvm_default("x2apic", NULL);
}
static void pc_compat_1_6(MachineState *machine)
{
pc_compat_1_7(machine);
- rom_file_has_mr = false;
- has_acpi_build = false;
}
static void pc_compat_1_5(MachineState *machine)
static void pc_compat_1_2(MachineState *machine)
{
pc_compat_1_3(machine);
- x86_cpu_compat_kvm_no_autoenable(FEAT_KVM, 1 << KVM_FEATURE_PV_EOI);
+ x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
}
/* PC compat function for pc-0.10 to pc-0.13 */
static void pc_compat_0_13(MachineState *machine)
{
pc_compat_1_2(machine);
- kvmclock_enabled = false;
}
static void pc_init_isa(MachineState *machine)
{
- pci_enabled = false;
- has_acpi_build = false;
- smbios_defaults = false;
- gigabyte_align = false;
- smbios_legacy_mode = true;
- has_reserved_memory = false;
- option_rom_has_mr = true;
- rom_file_has_mr = false;
if (!machine->cpu_model) {
machine->cpu_model = "486";
}
- x86_cpu_compat_kvm_no_autoenable(FEAT_KVM, 1 << KVM_FEATURE_PV_EOI);
+ x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
enable_compat_apic_id_mode();
pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
}
{
PCIBus *bus;
+ if (!xen_enabled()) {
+ error_report("xenfv machine requires the xen accelerator");
+ exit(1);
+ }
+
pc_xen_hvm_init_pci(machine);
bus = pci_find_primary_bus();
m->default_display = "std";
}
-static void pc_i440fx_2_5_machine_options(MachineClass *m)
+static void pc_i440fx_2_6_machine_options(MachineClass *m)
{
pc_i440fx_machine_options(m);
m->alias = "pc";
m->is_default = 1;
}
+DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL,
+ pc_i440fx_2_6_machine_options);
+
+
+static void pc_i440fx_2_5_machine_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_i440fx_2_6_machine_options(m);
+ m->alias = NULL;
+ m->is_default = 0;
+ pcmc->save_tsc_khz = false;
+ m->legacy_fw_cfg_order = 1;
+ SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
+}
+
DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL,
pc_i440fx_2_5_machine_options);
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_5_machine_options(m);
- m->alias = NULL;
- m->is_default = 0;
+ m->hw_version = "2.4.0";
pcmc->broken_reserved_end = true;
- pcmc->inter_dimm_gap = false;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_4);
}
static void pc_i440fx_2_3_machine_options(MachineClass *m)
{
pc_i440fx_2_4_machine_options(m);
- m->alias = NULL;
- m->is_default = 0;
+ m->hw_version = "2.3.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_2_3);
}
static void pc_i440fx_2_2_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_3_machine_options(m);
+ m->hw_version = "2.2.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_2_2);
+ pcmc->rsdp_in_ram = false;
}
DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2,
static void pc_i440fx_2_1_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_2_machine_options(m);
+ m->hw_version = "2.1.0";
m->default_display = NULL;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_1);
+ pcmc->smbios_uuid_encoded = false;
+ pcmc->enforce_aligned_dimm = false;
}
DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1,
static void pc_i440fx_2_0_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_1_machine_options(m);
+ m->hw_version = "2.0.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_2_0);
+ pcmc->smbios_legacy_mode = true;
+ pcmc->has_reserved_memory = false;
+ /* This value depends on the actual DSDT and SSDT compiled into
+ * the source QEMU; unfortunately it depends on the binary and
+ * not on the machine type, so we cannot make pc-i440fx-1.7 work on
+ * both QEMU 1.7 and QEMU 2.0.
+ *
+ * Large variations cause migration to fail for more than one
+ * consecutive value of the "-smp" maxcpus option.
+ *
+ * For small variations of the kind caused by different iasl versions,
+ * the 4k rounding usually leaves slack. However, there could be still
+ * one or two values that break. For QEMU 1.7 and QEMU 2.0 the
+ * slack is only ~10 bytes before one "-smp maxcpus" value breaks!
+ *
+ * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on
+ * QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418.
+ */
+ pcmc->legacy_acpi_table_size = 6652;
+ pcmc->acpi_data_size = 0x10000;
}
DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0,
static void pc_i440fx_1_7_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_0_machine_options(m);
+ m->hw_version = "1.7.0";
m->default_machine_opts = NULL;
+ m->option_rom_has_mr = true;
SET_MACHINE_COMPAT(m, PC_COMPAT_1_7);
+ pcmc->smbios_defaults = false;
+ pcmc->gigabyte_align = false;
+ pcmc->legacy_acpi_table_size = 6414;
}
DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7,
static void pc_i440fx_1_6_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_1_7_machine_options(m);
+ m->hw_version = "1.6.0";
+ m->rom_file_has_mr = false;
SET_MACHINE_COMPAT(m, PC_COMPAT_1_6);
+ pcmc->has_acpi_build = false;
}
DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6,
static void pc_i440fx_1_5_machine_options(MachineClass *m)
{
pc_i440fx_1_6_machine_options(m);
+ m->hw_version = "1.5.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_1_5);
}
static void pc_i440fx_1_4_machine_options(MachineClass *m)
{
pc_i440fx_1_5_machine_options(m);
+ m->hw_version = "1.4.0";
m->hot_add_cpu = NULL;
SET_MACHINE_COMPAT(m, PC_COMPAT_1_4);
}
#define PC_COMPAT_1_3 \
- PC_COMPAT_1_4 \
+ PC_CPU_MODEL_IDS("1.3.0") \
{\
.driver = "usb-tablet",\
.property = "usb_version",\
static void pc_i440fx_1_3_machine_options(MachineClass *m)
{
pc_i440fx_1_4_machine_options(m);
+ m->hw_version = "1.3.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_1_3);
}
#define PC_COMPAT_1_2 \
- PC_COMPAT_1_3 \
+ PC_CPU_MODEL_IDS("1.2.0") \
{\
.driver = "nec-usb-xhci",\
.property = "msi",\
static void pc_i440fx_1_2_machine_options(MachineClass *m)
{
pc_i440fx_1_3_machine_options(m);
+ m->hw_version = "1.2.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_1_2);
}
#define PC_COMPAT_1_1 \
- PC_COMPAT_1_2 \
+ PC_CPU_MODEL_IDS("1.1.0") \
{\
.driver = "virtio-scsi-pci",\
.property = "hotplug",\
static void pc_i440fx_1_1_machine_options(MachineClass *m)
{
pc_i440fx_1_2_machine_options(m);
+ m->hw_version = "1.1.0";
SET_MACHINE_COMPAT(m, PC_COMPAT_1_1);
}
#define PC_COMPAT_1_0 \
- PC_COMPAT_1_1 \
+ PC_CPU_MODEL_IDS("1.0") \
{\
.driver = TYPE_ISA_FDC,\
.property = "check_media_rate",\
#define PC_COMPAT_0_15 \
- PC_COMPAT_1_0
+ PC_CPU_MODEL_IDS("0.15")
static void pc_i440fx_0_15_machine_options(MachineClass *m)
{
#define PC_COMPAT_0_14 \
- PC_COMPAT_0_15 \
+ PC_CPU_MODEL_IDS("0.14") \
{\
.driver = "virtio-blk-pci",\
.property = "event_idx",\
#define PC_COMPAT_0_13 \
- PC_COMPAT_0_14 \
+ PC_CPU_MODEL_IDS("0.13") \
{\
.driver = TYPE_PCI_DEVICE,\
.property = "command_serr_enable",\
static void pc_i440fx_0_13_machine_options(MachineClass *m)
{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_0_14_machine_options(m);
m->hw_version = "0.13";
SET_MACHINE_COMPAT(m, PC_COMPAT_0_13);
+ pcmc->kvmclock_enabled = false;
}
DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13,
#define PC_COMPAT_0_12 \
- PC_COMPAT_0_13 \
+ PC_CPU_MODEL_IDS("0.12") \
{\
.driver = "virtio-serial-pci",\
.property = "max_ports",\
#define PC_COMPAT_0_11 \
- PC_COMPAT_0_12 \
+ PC_CPU_MODEL_IDS("0.11") \
{\
.driver = "virtio-blk-pci",\
.property = "vectors",\
#define PC_COMPAT_0_10 \
- PC_COMPAT_0_11 \
+ PC_CPU_MODEL_IDS("0.10") \
{\
.driver = "virtio-blk-pci",\
.property = "class",\
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;
}
DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
projects / qemu.git / blobdiff