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https://github.com/yuzu-emu/unicorn.git
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aee9f7327f
machine_class_base_init() member name is allocated by machine_class_base_init(), but not freed by machine_class_finalize(). Simply freeing there doesn't work, because DEFINE_PC_MACHINE() overwrites it with a literal string. Fix DEFINE_PC_MACHINE() not to overwrite it, and add the missing free to machine_class_finalize(). Backports commit 8ea753718b2d1a42e9ce7b8db9f5e4e1f330e827 from qemu
141 lines
4.8 KiB
C
141 lines
4.8 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/accel.h"
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#include "hw/qdev.h"
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#include "qom/object.h"
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#include "qom/cpu.h"
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#include "uc_priv.h"
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/**
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* memory_region_allocate_system_memory - Allocate a board's main memory
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* @mr: the #MemoryRegion to be initialized
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* @owner: the object that tracks the region's reference count
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* @name: name of the memory region
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* @ram_size: size of the region in bytes
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*
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* This function allocates the main memory for a board model, and
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* initializes @mr appropriately. It also arranges for the memory
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* to be migrated (by calling vmstate_register_ram_global()).
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*
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* Memory allocated via this function will be backed with the memory
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* backend the user provided using "-mem-path" or "-numa node,memdev=..."
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* if appropriate; this is typically used to cause host huge pages to be
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* used. This function should therefore be called by a board exactly once,
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* for the primary or largest RAM area it implements.
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*
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* For boards where the major RAM is split into two parts in the memory
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* map, you can deal with this by calling memory_region_allocate_system_memory()
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* once to get a MemoryRegion with enough RAM for both parts, and then
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* creating alias MemoryRegions via memory_region_init_alias() which
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* alias into different parts of the RAM MemoryRegion and can be mapped
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* into the memory map in the appropriate places.
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*
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* Smaller pieces of memory (display RAM, static RAMs, etc) don't need
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* to be backed via the -mem-path memory backend and can simply
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* be created via memory_region_init_ram().
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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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#define TYPE_MACHINE_SUFFIX "-machine"
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/* Machine class name that needs to be used for class-name-based machine
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* type lookup to work.
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*/
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#define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX)
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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(uc, obj) \
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OBJECT_CHECK(uc, MachineState, (obj), TYPE_MACHINE)
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#define MACHINE_GET_CLASS(uc, obj) \
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OBJECT_GET_CLASS(uc, MachineClass, (obj), TYPE_MACHINE)
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#define MACHINE_CLASS(uc, klass) \
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OBJECT_CLASS_CHECK(uc, MachineClass, (klass), TYPE_MACHINE)
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MachineClass *find_default_machine(struct uc_struct *uc, int arch);
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/**
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* MachineClass:
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* @minimum_page_bits:
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* If non-zero, the board promises never to create a CPU with a page size
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* smaller than this, so QEMU can use a more efficient larger page
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* size than the target architecture's minimum. (Attempting to create
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* such a CPU will fail.) Note that changing this is a migration
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* compatibility break for the machine.
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* @ignore_memory_transaction_failures:
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* If this is flag is true then the CPU will ignore memory transaction
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* failures which should cause the CPU to take an exception due to an
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* access to an unassigned physical address; the transaction will instead
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* return zero (for a read) or be ignored (for a write). This should be
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* set only by legacy board models which rely on the old RAZ/WI behaviour
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* for handling devices that QEMU does not yet model. New board models
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* should instead use "unimplemented-device" for all memory ranges where
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* the guest will attempt to probe for a device that QEMU doesn't
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* implement and a stub device is required.
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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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char *name;
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int (*init)(struct uc_struct *uc, MachineState *state);
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void (*reset)(void);
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int max_cpus;
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int is_default;
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int arch;
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int minimum_page_bits;
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bool has_hotpluggable_cpus;
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bool ignore_memory_transaction_failures;
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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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/*< public >*/
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ram_addr_t ram_size;
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ram_addr_t maxram_size;
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const char *cpu_model;
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struct uc_struct *uc;
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AccelState *accelerator;
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};
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#define DEFINE_MACHINE(namestr, machine_initfn) \
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static void machine_initfn##_class_init(struct uc_struct *uc, ObjectClass *oc, void *data) \
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{ \
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MachineClass *mc = MACHINE_CLASS(uc, oc); \
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machine_initfn(uc, mc); \
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} \
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static const TypeInfo machine_initfn##_typeinfo = { \
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MACHINE_TYPE_NAME(namestr), \
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TYPE_MACHINE, \
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0, \
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0, \
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NULL, \
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NULL, \
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NULL, \
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NULL, \
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NULL, \
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machine_initfn##_class_init, \
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}; \
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void machine_initfn##_register_types(struct uc_struct *uc) \
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{ \
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type_register_static(uc, &machine_initfn##_typeinfo); \
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}
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void machine_register_types(struct uc_struct *uc);
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#endif
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