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qemu/include/hw/i386/pc.h
Eduardo Habkost 9337e3b6e1 target-i386: Disable PMU CPUID leaf by default 
Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID
for CPUID leaf 0xA and passes them directly to the guest. This makes
the guest ABI depend on host kernel and host CPU capabilities, and
breaks live migration if we migrate between hosts with different
capabilities (e.g., different number of PMU counters).

Add a "pmu" property to X86CPU, and set it to true only on "-cpu host",
or on pc-*-1.5 and older machine-types.

For now, setting pmu=on will enable the current passthrough mode that
doesn't have any ABI stability guarantees, but in the future we may
implement a mode where the PMU CPUID bits are stable and configurable.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 15:29:16 +02:00

310 lines
9.1 KiB
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#ifndef HW_PC_H
#define HW_PC_H
#include "qemu-common.h"
#include "exec/memory.h"
#include "hw/isa/isa.h"
#include "hw/block/fdc.h"
#include "net/net.h"
#include "hw/i386/ioapic.h"
#include "qemu/range.h"
/* PC-style peripherals (also used by other machines). */
typedef struct PcPciInfo {
Range w32;
Range w64;
} PcPciInfo;
struct PcGuestInfo {
PcPciInfo pci_info;
bool has_pci_info;
FWCfgState *fw_cfg;
};
/* parallel.c */
static inline bool parallel_init(ISABus *bus, int index, CharDriverState *chr)
{
DeviceState *dev;
ISADevice *isadev;
isadev = isa_try_create(bus, "isa-parallel");
if (!isadev) {
return false;
}
dev = DEVICE(isadev);
qdev_prop_set_uint32(dev, "index", index);
qdev_prop_set_chr(dev, "chardev", chr);
if (qdev_init(dev) < 0) {
return false;
}
return true;
}
bool parallel_mm_init(MemoryRegion *address_space,
hwaddr base, int it_shift, qemu_irq irq,
CharDriverState *chr);
/* i8259.c */
extern DeviceState *isa_pic;
qemu_irq *i8259_init(ISABus *bus, qemu_irq parent_irq);
qemu_irq *kvm_i8259_init(ISABus *bus);
int pic_read_irq(DeviceState *d);
int pic_get_output(DeviceState *d);
void pic_info(Monitor *mon, const QDict *qdict);
void irq_info(Monitor *mon, const QDict *qdict);
/* Global System Interrupts */
#define GSI_NUM_PINS IOAPIC_NUM_PINS
typedef struct GSIState {
qemu_irq i8259_irq[ISA_NUM_IRQS];
qemu_irq ioapic_irq[IOAPIC_NUM_PINS];
} GSIState;
void gsi_handler(void *opaque, int n, int level);
/* vmport.c */
typedef uint32_t (VMPortReadFunc)(void *opaque, uint32_t address);
static inline void vmport_init(ISABus *bus)
{
isa_create_simple(bus, "vmport");
}
void vmport_register(unsigned char command, VMPortReadFunc *func, void *opaque);
void vmmouse_get_data(uint32_t *data);
void vmmouse_set_data(const uint32_t *data);
/* pckbd.c */
void i8042_init(qemu_irq kbd_irq, qemu_irq mouse_irq, uint32_t io_base);
void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq,
MemoryRegion *region, ram_addr_t size,
hwaddr mask);
void i8042_isa_mouse_fake_event(void *opaque);
void i8042_setup_a20_line(ISADevice *dev, qemu_irq *a20_out);
/* pc.c */
extern int fd_bootchk;
void pc_register_ferr_irq(qemu_irq irq);
void pc_acpi_smi_interrupt(void *opaque, int irq, int level);
void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge);
void pc_hot_add_cpu(const int64_t id, Error **errp);
void pc_acpi_init(const char *default_dsdt);
PcGuestInfo *pc_guest_info_init(ram_addr_t below_4g_mem_size,
ram_addr_t above_4g_mem_size);
FWCfgState *pc_memory_init(MemoryRegion *system_memory,
const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
ram_addr_t below_4g_mem_size,
ram_addr_t above_4g_mem_size,
MemoryRegion *rom_memory,
MemoryRegion **ram_memory,
PcGuestInfo *guest_info);
qemu_irq *pc_allocate_cpu_irq(void);
DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus);
void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
ISADevice **rtc_state,
ISADevice **floppy,
bool no_vmport);
void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd);
void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
const char *boot_device,
ISADevice *floppy, BusState *ide0, BusState *ide1,
ISADevice *s);
void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus);
void pc_pci_device_init(PCIBus *pci_bus);
typedef void (*cpu_set_smm_t)(int smm, void *arg);
void cpu_smm_register(cpu_set_smm_t callback, void *arg);
void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name);
/* acpi_piix.c */
i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
qemu_irq sci_irq, qemu_irq smi_irq,
int kvm_enabled, FWCfgState *fw_cfg);
void piix4_smbus_register_device(SMBusDevice *dev, uint8_t addr);
/* hpet.c */
extern int no_hpet;
/* piix_pci.c */
struct PCII440FXState;
typedef struct PCII440FXState PCII440FXState;
PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix_devfn,
ISABus **isa_bus, qemu_irq *pic,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
hwaddr pci_hole_start,
hwaddr pci_hole_size,
hwaddr pci_hole64_start,
hwaddr pci_hole64_size,
MemoryRegion *pci_memory,
MemoryRegion *ram_memory);
/* piix4.c */
extern PCIDevice *piix4_dev;
int piix4_init(PCIBus *bus, ISABus **isa_bus, int devfn);
/* vga.c */
enum vga_retrace_method {
VGA_RETRACE_DUMB,
VGA_RETRACE_PRECISE
};
extern enum vga_retrace_method vga_retrace_method;
int isa_vga_mm_init(hwaddr vram_base,
hwaddr ctrl_base, int it_shift,
MemoryRegion *address_space);
/* ne2000.c */
static inline bool isa_ne2000_init(ISABus *bus, int base, int irq, NICInfo *nd)
{
DeviceState *dev;
ISADevice *isadev;
qemu_check_nic_model(nd, "ne2k_isa");
isadev = isa_try_create(bus, "ne2k_isa");
if (!isadev) {
return false;
}
dev = DEVICE(isadev);
qdev_prop_set_uint32(dev, "iobase", base);
qdev_prop_set_uint32(dev, "irq", irq);
qdev_set_nic_properties(dev, nd);
qdev_init_nofail(dev);
return true;
}
/* pc_sysfw.c */
void pc_system_firmware_init(MemoryRegion *rom_memory);
/* pvpanic.c */
void pvpanic_init(ISABus *bus);
/* e820 types */
#define E820_RAM 1
#define E820_RESERVED 2
#define E820_ACPI 3
#define E820_NVS 4
#define E820_UNUSABLE 5
int e820_add_entry(uint64_t, uint64_t, uint32_t);
#define PC_COMPAT_1_5 \
{\
.driver = "Conroe-" TYPE_X86_CPU,\
.property = "model",\
.value = stringify(2),\
},{\
.driver = "Conroe-" TYPE_X86_CPU,\
.property = "level",\
.value = stringify(2),\
},{\
.driver = "Penryn-" TYPE_X86_CPU,\
.property = "model",\
.value = stringify(2),\
},{\
.driver = "Penryn-" TYPE_X86_CPU,\
.property = "level",\
.value = stringify(2),\
},{\
.driver = "Nehalem-" TYPE_X86_CPU,\
.property = "model",\
.value = stringify(2),\
},{\
.driver = "Nehalem-" TYPE_X86_CPU,\
.property = "level",\
.value = stringify(2),\
},{\
.driver = "virtio-net-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = TYPE_X86_CPU,\
.property = "pmu",\
.value = "on",\
}
#define PC_COMPAT_1_4 \
PC_COMPAT_1_5, \
{\
.driver = "scsi-hd",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "scsi-cd",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "scsi-disk",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "ide-hd",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "ide-cd",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "ide-drive",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "virtio-blk-pci",\
.property = "discard_granularity",\
.value = stringify(0),\
},{\
.driver = "virtio-serial-pci",\
.property = "vectors",\
/* DEV_NVECTORS_UNSPECIFIED as a uint32_t string */\
.value = stringify(0xFFFFFFFF),\
},{ \
.driver = "virtio-net-pci", \
.property = "ctrl_guest_offloads", \
.value = "off", \
},{\
.driver = "e1000",\
.property = "romfile",\
.value = "pxe-e1000.rom",\
},{\
.driver = "ne2k_pci",\
.property = "romfile",\
.value = "pxe-ne2k_pci.rom",\
},{\
.driver = "pcnet",\
.property = "romfile",\
.value = "pxe-pcnet.rom",\
},{\
.driver = "rtl8139",\
.property = "romfile",\
.value = "pxe-rtl8139.rom",\
},{\
.driver = "virtio-net-pci",\
.property = "romfile",\
.value = "pxe-virtio.rom",\
},{\
.driver = "486-" TYPE_X86_CPU,\
.property = "model",\
.value = stringify(0),\
}
#endif
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