920557971b
This interface provides some registers within a 32-byte range and can be acessed through PCI-to-LPC bridge interface (PMBASE + 0x60). It's commonly used as a watchdog timer to detect system lockups through SMIs that are generated -- if TCO_EN bit is set -- on every timeout. If NO_REBOOT bit is not set in GCS (General Control and Status register), the system will be resetted upon second timeout if TCO_RLD register wasn't previously written to prevent timeout. This patch adds support to TCO watchdog logic and few other features like mapping NMIs to SMIs (NMI2SMI_EN bit), system intruder detection, etc. are not implemented yet. Signed-off-by: Paulo Alcantara <pcacjr@zytor.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
155 lines
4.3 KiB
C
155 lines
4.3 KiB
C
/* Declarations for use by board files for creating devices. */
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#ifndef HW_BOARDS_H
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#define HW_BOARDS_H
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#include "qemu/typedefs.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/accel.h"
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#include "hw/qdev.h"
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#include "qom/object.h"
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typedef void QEMUMachineInitFunc(MachineState *ms);
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typedef void QEMUMachineResetFunc(void);
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typedef void QEMUMachineHotAddCPUFunc(const int64_t id, Error **errp);
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typedef int QEMUMachineGetKvmtypeFunc(const char *arg);
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struct QEMUMachine {
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const char *name;
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const char *desc;
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QEMUMachineInitFunc *init;
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QEMUMachineGetKvmtypeFunc *kvm_type;
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BlockInterfaceType block_default_type;
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int max_cpus;
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unsigned int
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no_sdcard:1,
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has_dynamic_sysbus:1;
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int is_default;
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const char *default_machine_opts;
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const char *default_boot_order;
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};
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void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
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const char *name,
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uint64_t ram_size);
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int qemu_register_machine(QEMUMachine *m);
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#define TYPE_MACHINE_SUFFIX "-machine"
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#define TYPE_MACHINE "machine"
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#undef MACHINE /* BSD defines it and QEMU does not use it */
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#define MACHINE(obj) \
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OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE)
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#define MACHINE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE)
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#define MACHINE_CLASS(klass) \
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OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
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MachineClass *find_default_machine(void);
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extern MachineState *current_machine;
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bool machine_usb(MachineState *machine);
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bool machine_iommu(MachineState *machine);
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bool machine_kernel_irqchip_allowed(MachineState *machine);
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bool machine_kernel_irqchip_required(MachineState *machine);
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int machine_kvm_shadow_mem(MachineState *machine);
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int machine_phandle_start(MachineState *machine);
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bool machine_dump_guest_core(MachineState *machine);
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bool machine_mem_merge(MachineState *machine);
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/**
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* MachineClass:
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* @qemu_machine: #QEMUMachine
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* @get_hotplug_handler: this function is called during bus-less
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* device hotplug. If defined it returns pointer to an instance
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* of HotplugHandler object, which handles hotplug operation
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* for a given @dev. It may return NULL if @dev doesn't require
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* any actions to be performed by hotplug handler.
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* @cpu_index_to_socket_id:
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* used to provide @cpu_index to socket number mapping, allowing
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* a machine to group CPU threads belonging to the same socket/package
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* Returns: socket number given cpu_index belongs to.
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*/
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struct MachineClass {
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/*< private >*/
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ObjectClass parent_class;
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/*< public >*/
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const char *family; /* NULL iff @name identifies a standalone machtype */
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const char *name;
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const char *alias;
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const char *desc;
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void (*init)(MachineState *state);
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void (*reset)(void);
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void (*hot_add_cpu)(const int64_t id, Error **errp);
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int (*kvm_type)(const char *arg);
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BlockInterfaceType block_default_type;
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int units_per_default_bus;
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int max_cpus;
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unsigned int no_serial:1,
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no_parallel:1,
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use_virtcon:1,
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use_sclp:1,
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no_floppy:1,
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no_cdrom:1,
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no_sdcard:1,
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has_dynamic_sysbus:1,
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no_tco:1;
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int is_default;
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const char *default_machine_opts;
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const char *default_boot_order;
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const char *default_display;
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GlobalProperty *compat_props;
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const char *hw_version;
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ram_addr_t default_ram_size;
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HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
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DeviceState *dev);
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unsigned (*cpu_index_to_socket_id)(unsigned cpu_index);
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};
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/**
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* MachineState:
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*/
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struct MachineState {
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/*< private >*/
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Object parent_obj;
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Notifier sysbus_notifier;
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/*< public >*/
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char *accel;
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bool kernel_irqchip_allowed;
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bool kernel_irqchip_required;
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int kvm_shadow_mem;
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char *dtb;
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char *dumpdtb;
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int phandle_start;
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char *dt_compatible;
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bool dump_guest_core;
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bool mem_merge;
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bool usb;
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bool usb_disabled;
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char *firmware;
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bool iommu;
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bool suppress_vmdesc;
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ram_addr_t ram_size;
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ram_addr_t maxram_size;
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uint64_t ram_slots;
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const char *boot_order;
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char *kernel_filename;
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char *kernel_cmdline;
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char *initrd_filename;
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const char *cpu_model;
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AccelState *accelerator;
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};
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#endif
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