mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
a5c02408c1
qemu/include/hw/boards.h
Dorjoy Chowdhury 1a9867498d core/machine: Make create_default_memdev machine a virtual method 
This is in preparation for the next commit where the nitro-enclave
machine type will need to instead use a memfd backend, for the built-in
vhost-user-vsock device to work.

Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Link: https://lore.kernel.org/r/20241008211727.49088-5-dorjoychy111@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:33 +01:00

837 lines
30 KiB
C
Raw Blame History

/* Declarations for use by board files for creating devices. */
#ifndef HW_BOARDS_H
#define HW_BOARDS_H
#include "exec/memory.h"
#include "sysemu/hostmem.h"
#include "sysemu/blockdev.h"
#include "qapi/qapi-types-machine.h"
#include "qemu/module.h"
#include "qom/object.h"
#include "hw/core/cpu.h"
#include "hw/resettable.h"
#define TYPE_MACHINE_SUFFIX "-machine"
/* Machine class name that needs to be used for class-name-based machine
* type lookup to work.
*/
#define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX)
#define TYPE_MACHINE "machine"
#undef MACHINE /* BSD defines it and QEMU does not use it */
OBJECT_DECLARE_TYPE(MachineState, MachineClass, MACHINE)
extern MachineState *current_machine;
/**
* machine_class_default_cpu_type: Return the machine default CPU type.
* @mc: Machine class
*/
const char *machine_class_default_cpu_type(MachineClass *mc);
void machine_add_audiodev_property(MachineClass *mc);
void machine_run_board_init(MachineState *machine, const char *mem_path, Error **errp);
bool machine_usb(MachineState *machine);
int machine_phandle_start(MachineState *machine);
bool machine_dump_guest_core(MachineState *machine);
bool machine_mem_merge(MachineState *machine);
bool machine_require_guest_memfd(MachineState *machine);
HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine);
void machine_set_cpu_numa_node(MachineState *machine,
const CpuInstanceProperties *props,
Error **errp);
void machine_parse_smp_config(MachineState *ms,
const SMPConfiguration *config, Error **errp);
unsigned int machine_topo_get_cores_per_socket(const MachineState *ms);
unsigned int machine_topo_get_threads_per_socket(const MachineState *ms);
void machine_memory_devices_init(MachineState *ms, hwaddr base, uint64_t size);
/**
* machine_class_allow_dynamic_sysbus_dev: Add type to list of valid devices
* @mc: Machine class
* @type: type to allow (should be a subtype of TYPE_SYS_BUS_DEVICE)
*
* Add the QOM type @type to the list of devices of which are subtypes
* of TYPE_SYS_BUS_DEVICE but which are still permitted to be dynamically
* created (eg by the user on the command line with -device).
* By default if the user tries to create any devices on the command line
* that are subtypes of TYPE_SYS_BUS_DEVICE they will get an error message;
* for the special cases which are permitted for this machine model, the
* machine model class init code must call this function to add them
* to the list of specifically permitted devices.
*/
void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type);
/**
* device_type_is_dynamic_sysbus: Check if type is an allowed sysbus device
* type for the machine class.
* @mc: Machine class
* @type: type to check (should be a subtype of TYPE_SYS_BUS_DEVICE)
*
* Returns: true if @type is a type in the machine's list of
* dynamically pluggable sysbus devices; otherwise false.
*
* Check if the QOM type @type is in the list of allowed sysbus device
* types (see machine_class_allowed_dynamic_sysbus_dev()).
* Note that if @type has a parent type in the list, it is allowed too.
*/
bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type);
/**
* device_is_dynamic_sysbus: test whether device is a dynamic sysbus device
* @mc: Machine class
* @dev: device to check
*
* Returns: true if @dev is a sysbus device on the machine's list
* of dynamically pluggable sysbus devices; otherwise false.
*
* This function checks whether @dev is a valid dynamic sysbus device,
* by first confirming that it is a sysbus device and then checking it
* against the list of permitted dynamic sysbus devices which has been
* set up by the machine using machine_class_allow_dynamic_sysbus_dev().
*
* It is valid to call this with something that is not a subclass of
* TYPE_SYS_BUS_DEVICE; the function will return false in this case.
* This allows hotplug callback functions to be written as:
* if (device_is_dynamic_sysbus(mc, dev)) {
* handle dynamic sysbus case;
* } else if (some other kind of hotplug) {
* handle that;
* }
*/
bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev);
/*
* Checks that backend isn't used, preps it for exclusive usage and
* returns migratable MemoryRegion provided by backend.
*/
MemoryRegion *machine_consume_memdev(MachineState *machine,
HostMemoryBackend *backend);
/**
* CPUArchId:
* @arch_id - architecture-dependent CPU ID of present or possible CPU
* @cpu - pointer to corresponding CPU object if it's present on NULL otherwise
* @type - QOM class name of possible @cpu object
* @props - CPU object properties, initialized by board
* #vcpus_count - number of threads provided by @cpu object
*/
typedef struct CPUArchId {
uint64_t arch_id;
int64_t vcpus_count;
CpuInstanceProperties props;
CPUState *cpu;
const char *type;
} CPUArchId;
/**
* CPUArchIdList:
* @len - number of @CPUArchId items in @cpus array
* @cpus - array of present or possible CPUs for current machine configuration
*/
typedef struct {
int len;
CPUArchId cpus[];
} CPUArchIdList;
/**
* SMPCompatProps:
* @prefer_sockets - whether sockets are preferred over cores in smp parsing
* @dies_supported - whether dies are supported by the machine
* @clusters_supported - whether clusters are supported by the machine
* @has_clusters - whether clusters are explicitly specified in the user
* provided SMP configuration
* @books_supported - whether books are supported by the machine
* @drawers_supported - whether drawers are supported by the machine
* @modules_supported - whether modules are supported by the machine
*/
typedef struct {
bool prefer_sockets;
bool dies_supported;
bool clusters_supported;
bool has_clusters;
bool books_supported;
bool drawers_supported;
bool modules_supported;
} SMPCompatProps;
/**
* MachineClass:
* @deprecation_reason: If set, the machine is marked as deprecated. The
* string should provide some clear information about what to use instead.
* @max_cpus: maximum number of CPUs supported. Default: 1
* @min_cpus: minimum number of CPUs supported. Default: 1
* @default_cpus: number of CPUs instantiated if none are specified. Default: 1
* @is_default:
* If true QEMU will use this machine by default if no '-M' option is given.
* @get_hotplug_handler: this function is called during bus-less
* device hotplug. If defined it returns pointer to an instance
* of HotplugHandler object, which handles hotplug operation
* for a given @dev. It may return NULL if @dev doesn't require
* any actions to be performed by hotplug handler.
* @cpu_index_to_instance_props:
* used to provide @cpu_index to socket/core/thread number mapping, allowing
* legacy code to perform mapping from cpu_index to topology properties
* Returns: tuple of socket/core/thread ids given cpu_index belongs to.
* used to provide @cpu_index to socket number mapping, allowing
* a machine to group CPU threads belonging to the same socket/package
* Returns: socket number given cpu_index belongs to.
* @hw_version:
* Value of QEMU_VERSION when the machine was added to QEMU.
* Set only by old machines because they need to keep
* compatibility on code that exposed QEMU_VERSION to guests in
* the past (and now use qemu_hw_version()).
* @possible_cpu_arch_ids:
* Returns an array of @CPUArchId architecture-dependent CPU IDs
* which includes CPU IDs for present and possible to hotplug CPUs.
* Caller is responsible for freeing returned list.
* @get_default_cpu_node_id:
* returns default board specific node_id value for CPU slot specified by
* index @idx in @ms->possible_cpus[]
* @has_hotpluggable_cpus:
* If true, board supports CPUs creation with -device/device_add.
* @default_cpu_type:
* specifies default CPU_TYPE, which will be used for parsing target
* specific features and for creating CPUs if CPU name wasn't provided
* explicitly at CLI
* @minimum_page_bits:
* If non-zero, the board promises never to create a CPU with a page size
* smaller than this, so QEMU can use a more efficient larger page
* size than the target architecture's minimum. (Attempting to create
* such a CPU will fail.) Note that changing this is a migration
* compatibility break for the machine.
* @ignore_memory_transaction_failures:
* If this is flag is true then the CPU will ignore memory transaction
* failures which should cause the CPU to take an exception due to an
* access to an unassigned physical address; the transaction will instead
* return zero (for a read) or be ignored (for a write). This should be
* set only by legacy board models which rely on the old RAZ/WI behaviour
* for handling devices that QEMU does not yet model. New board models
* should instead use "unimplemented-device" for all memory ranges where
* the guest will attempt to probe for a device that QEMU doesn't
* implement and a stub device is required.
* @kvm_type:
* Return the type of KVM corresponding to the kvm-type string option or
* computed based on other criteria such as the host kernel capabilities.
* kvm-type may be NULL if it is not needed.
* @hvf_get_physical_address_range:
* Returns the physical address range in bits to use for the HVF virtual
* machine based on the current boards memory map. This may be NULL if it
* is not needed.
* @numa_mem_supported:
* true if '--numa node.mem' option is supported and false otherwise
* @hotplug_allowed:
* If the hook is provided, then it'll be called for each device
* hotplug to check whether the device hotplug is allowed. Return
* true to grant allowance or false to reject the hotplug. When
* false is returned, an error must be set to show the reason of
* the rejection. If the hook is not provided, all hotplug will be
* allowed.
* @default_ram_id:
* Specifies initial RAM MemoryRegion name to be used for default backend
* creation if user explicitly hasn't specified backend with "memory-backend"
* property.
* It also will be used as a way to option into "-m" option support.
* If it's not set by board, '-m' will be ignored and generic code will
* not create default RAM MemoryRegion.
* @fixup_ram_size:
* Amends user provided ram size (with -m option) using machine
* specific algorithm. To be used by old machine types for compat
* purposes only.
* Applies only to default memory backend, i.e., explicit memory backend
* wasn't used.
* @smbios_memory_device_size:
* Default size of memory device,
* SMBIOS 3.1.0 "7.18 Memory Device (Type 17)"
*/
struct MachineClass {
/*< private >*/
ObjectClass parent_class;
/*< public >*/
const char *family; /* NULL iff @name identifies a standalone machtype */
char *name;
const char *alias;
const char *desc;
const char *deprecation_reason;
void (*init)(MachineState *state);
void (*reset)(MachineState *state, ResetType type);
void (*wakeup)(MachineState *state);
int (*kvm_type)(MachineState *machine, const char *arg);
int (*hvf_get_physical_address_range)(MachineState *machine);
BlockInterfaceType block_default_type;
int units_per_default_bus;
int max_cpus;
int min_cpus;
int default_cpus;
unsigned int no_serial:1,
no_parallel:1,
no_floppy:1,
no_cdrom:1,
no_sdcard:1,
pci_allow_0_address:1,
legacy_fw_cfg_order:1;
bool is_default;
const char *default_machine_opts;
const char *default_boot_order;
const char *default_display;
const char *default_nic;
GPtrArray *compat_props;
const char *hw_version;
ram_addr_t default_ram_size;
const char *default_cpu_type;
bool default_kernel_irqchip_split;
bool option_rom_has_mr;
bool rom_file_has_mr;
int minimum_page_bits;
bool has_hotpluggable_cpus;
bool ignore_memory_transaction_failures;
int numa_mem_align_shift;
const char * const *valid_cpu_types;
strList *allowed_dynamic_sysbus_devices;
bool auto_enable_numa_with_memhp;
bool auto_enable_numa_with_memdev;
bool ignore_boot_device_suffixes;
bool smbus_no_migration_support;
bool nvdimm_supported;
bool numa_mem_supported;
bool auto_enable_numa;
bool cpu_cluster_has_numa_boundary;
SMPCompatProps smp_props;
const char *default_ram_id;
HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
DeviceState *dev);
bool (*hotplug_allowed)(MachineState *state, DeviceState *dev,
Error **errp);
CpuInstanceProperties (*cpu_index_to_instance_props)(MachineState *machine,
unsigned cpu_index);
const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine);
int64_t (*get_default_cpu_node_id)(const MachineState *ms, int idx);
ram_addr_t (*fixup_ram_size)(ram_addr_t size);
uint64_t smbios_memory_device_size;
bool (*create_default_memdev)(MachineState *ms, const char *path,
Error **errp);
};
/**
* DeviceMemoryState:
* @base: address in guest physical address space where the memory
* address space for memory devices starts
* @mr: memory region container for memory devices
* @as: address space for memory devices
* @listener: memory listener used to track used memslots in the address space
* @dimm_size: the sum of plugged DIMMs' sizes
* @used_region_size: the part of @mr already used by memory devices
* @required_memslots: the number of memslots required by memory devices
* @used_memslots: the number of memslots currently used by memory devices
* @memslot_auto_decision_active: whether any plugged memory device
* automatically decided to use more than
* one memslot
*/
typedef struct DeviceMemoryState {
hwaddr base;
MemoryRegion mr;
AddressSpace as;
MemoryListener listener;
uint64_t dimm_size;
uint64_t used_region_size;
unsigned int required_memslots;
unsigned int used_memslots;
unsigned int memslot_auto_decision_active;
} DeviceMemoryState;
/**
* CpuTopology:
* @cpus: the number of present logical processors on the machine
* @drawers: the number of drawers on the machine
* @books: the number of books in one drawer
* @sockets: the number of sockets in one book
* @dies: the number of dies in one socket
* @clusters: the number of clusters in one die
* @modules: the number of modules in one cluster
* @cores: the number of cores in one cluster
* @threads: the number of threads in one core
* @max_cpus: the maximum number of logical processors on the machine
*/
typedef struct CpuTopology {
unsigned int cpus;
unsigned int drawers;
unsigned int books;
unsigned int sockets;
unsigned int dies;
unsigned int clusters;
unsigned int modules;
unsigned int cores;
unsigned int threads;
unsigned int max_cpus;
} CpuTopology;
/**
* MachineState:
*/
struct MachineState {
/*< private >*/
Object parent_obj;
/*< public >*/
void *fdt;
char *dtb;
char *dumpdtb;
int phandle_start;
char *dt_compatible;
bool dump_guest_core;
bool mem_merge;
bool usb;
bool usb_disabled;
char *firmware;
bool iommu;
bool suppress_vmdesc;
bool enable_graphics;
ConfidentialGuestSupport *cgs;
HostMemoryBackend *memdev;
/*
* convenience alias to ram_memdev_id backend memory region
* or to numa container memory region
*/
MemoryRegion *ram;
DeviceMemoryState *device_memory;
/*
* Included in MachineState for simplicity, but not supported
* unless machine_add_audiodev_property is called. Boards
* that have embedded audio devices can call it from the
* machine init function and forward the property to the device.
*/
char *audiodev;
ram_addr_t ram_size;
ram_addr_t maxram_size;
uint64_t ram_slots;
BootConfiguration boot_config;
char *kernel_filename;
char *kernel_cmdline;
char *initrd_filename;
const char *cpu_type;
AccelState *accelerator;
CPUArchIdList *possible_cpus;
CpuTopology smp;
struct NVDIMMState *nvdimms_state;
struct NumaState *numa_state;
};
/*
* The macros which follow are intended to facilitate the
* definition of versioned machine types, using a somewhat
* similar pattern across targets.
*
* For example, a macro that can be used to define versioned
* 'virt' machine types would look like:
*
* #define DEFINE_VIRT_MACHINE_IMPL(latest, ...) \
* static void MACHINE_VER_SYM(class_init, virt, __VA_ARGS__)( \
* ObjectClass *oc, \
* void *data) \
* { \
* MachineClass *mc = MACHINE_CLASS(oc); \
* MACHINE_VER_SYM(options, virt, __VA_ARGS__)(mc); \
* mc->desc = "QEMU " MACHINE_VER_STR(__VA_ARGS__) " Virtual Machine"; \
* MACHINE_VER_DEPRECATION(__VA_ARGS__); \
* if (latest) { \
* mc->alias = "virt"; \
* } \
* } \
* static const TypeInfo MACHINE_VER_SYM(info, virt, __VA_ARGS__) = { \
* .name = MACHINE_VER_TYPE_NAME("virt", __VA_ARGS__), \
* .parent = TYPE_VIRT_MACHINE, \
* .class_init = MACHINE_VER_SYM(class_init, virt, __VA_ARGS__), \
* }; \
* static void MACHINE_VER_SYM(register, virt, __VA_ARGS__)(void) \
* { \
* MACHINE_VER_DELETION(__VA_ARGS__); \
* type_register_static(&MACHINE_VER_SYM(info, virt, __VA_ARGS__)); \
* } \
* type_init(MACHINE_VER_SYM(register, virt, __VA_ARGS__));
*
* Following this, one (or more) helpers can be added for
* whichever scenarios need to be catered for with a machine:
*
* // Normal 2 digit, marked as latest e.g. 'virt-9.0'
* #define DEFINE_VIRT_MACHINE_LATEST(major, minor) \
* DEFINE_VIRT_MACHINE_IMPL(true, major, minor)
*
* // Normal 2 digit e.g. 'virt-9.0'
* #define DEFINE_VIRT_MACHINE(major, minor) \
* DEFINE_VIRT_MACHINE_IMPL(false, major, minor)
*
* // Bugfix 3 digit e.g. 'virt-9.0.1'
* #define DEFINE_VIRT_MACHINE_BUGFIX(major, minor, micro) \
* DEFINE_VIRT_MACHINE_IMPL(false, major, minor, micro)
*
* // Tagged 2 digit e.g. 'virt-9.0-extra'
* #define DEFINE_VIRT_MACHINE_TAGGED(major, minor, tag) \
* DEFINE_VIRT_MACHINE_IMPL(false, major, minor, _, tag)
*
* // Tagged bugfix 2 digit e.g. 'virt-9.0.1-extra'
* #define DEFINE_VIRT_MACHINE_TAGGED(major, minor, micro, tag) \
* DEFINE_VIRT_MACHINE_IMPL(false, major, minor, micro, _, tag)
*/
/*
* Helper for dispatching different macros based on how
* many __VA_ARGS__ are passed. Supports 1 to 5 variadic
* arguments, with the called target able to be prefixed
* with 0 or more fixed arguments too. To be called thus:
*
* _MACHINE_VER_PICK(__VA_ARGS,
* MACRO_MATCHING_5_ARGS,
* MACRO_MATCHING_4_ARGS,
* MACRO_MATCHING_3_ARGS,
* MACRO_MATCHING_2_ARGS,
* MACRO_MATCHING_1_ARG) (FIXED-ARG-1,
* ...,
* FIXED-ARG-N,
* __VA_ARGS__)
*/
#define _MACHINE_VER_PICK(x1, x2, x3, x4, x5, x6, ...) x6
/*
* Construct a human targeted machine version string.
*
* Can be invoked with various signatures
*
* MACHINE_VER_STR(sym, prefix, major, minor)
* MACHINE_VER_STR(sym, prefix, major, minor, micro)
* MACHINE_VER_STR(sym, prefix, major, minor, _, tag)
* MACHINE_VER_STR(sym, prefix, major, minor, micro, _, tag)
*
* Respectively emitting symbols with the format
*
* "{major}.{minor}"
* "{major}.{minor}-{tag}"
* "{major}.{minor}.{micro}"
* "{major}.{minor}.{micro}-{tag}"
*/
#define _MACHINE_VER_STR2(major, minor) \
#major "." #minor
#define _MACHINE_VER_STR3(major, minor, micro) \
#major "." #minor "." #micro
#define _MACHINE_VER_STR4(major, minor, _unused_, tag) \
#major "." #minor "-" #tag
#define _MACHINE_VER_STR5(major, minor, micro, _unused_, tag) \
#major "." #minor "." #micro "-" #tag
#define MACHINE_VER_STR(...) \
_MACHINE_VER_PICK(__VA_ARGS__, \
_MACHINE_VER_STR5, \
_MACHINE_VER_STR4, \
_MACHINE_VER_STR3, \
_MACHINE_VER_STR2) (__VA_ARGS__)
/*
* Construct a QAPI type name for a versioned machine
* type
*
* Can be invoked with various signatures
*
* MACHINE_VER_TYPE_NAME(prefix, major, minor)
* MACHINE_VER_TYPE_NAME(prefix, major, minor, micro)
* MACHINE_VER_TYPE_NAME(prefix, major, minor, _, tag)
* MACHINE_VER_TYPE_NAME(prefix, major, minor, micro, _, tag)
*
* Respectively emitting symbols with the format
*
* "{prefix}-{major}.{minor}"
* "{prefix}-{major}.{minor}.{micro}"
* "{prefix}-{major}.{minor}-{tag}"
* "{prefix}-{major}.{minor}.{micro}-{tag}"
*/
#define _MACHINE_VER_TYPE_NAME2(prefix, major, minor) \
prefix "-" #major "." #minor TYPE_MACHINE_SUFFIX
#define _MACHINE_VER_TYPE_NAME3(prefix, major, minor, micro) \
prefix "-" #major "." #minor "." #micro TYPE_MACHINE_SUFFIX
#define _MACHINE_VER_TYPE_NAME4(prefix, major, minor, _unused_, tag) \
prefix "-" #major "." #minor "-" #tag TYPE_MACHINE_SUFFIX
#define _MACHINE_VER_TYPE_NAME5(prefix, major, minor, micro, _unused_, tag) \
prefix "-" #major "." #minor "." #micro "-" #tag TYPE_MACHINE_SUFFIX
#define MACHINE_VER_TYPE_NAME(prefix, ...) \
_MACHINE_VER_PICK(__VA_ARGS__, \
_MACHINE_VER_TYPE_NAME5, \
_MACHINE_VER_TYPE_NAME4, \
_MACHINE_VER_TYPE_NAME3, \
_MACHINE_VER_TYPE_NAME2) (prefix, __VA_ARGS__)
/*
* Construct a name for a versioned machine type that is
* suitable for use as a C symbol (function/variable/etc).
*
* Can be invoked with various signatures
*
* MACHINE_VER_SYM(sym, prefix, major, minor)
* MACHINE_VER_SYM(sym, prefix, major, minor, micro)
* MACHINE_VER_SYM(sym, prefix, major, minor, _, tag)
* MACHINE_VER_SYM(sym, prefix, major, minor, micro, _, tag)
*
* Respectively emitting symbols with the format
*
* {prefix}_machine_{major}_{minor}_{sym}
* {prefix}_machine_{major}_{minor}_{micro}_{sym}
* {prefix}_machine_{major}_{minor}_{tag}_{sym}
* {prefix}_machine_{major}_{minor}_{micro}_{tag}_{sym}
*/
#define _MACHINE_VER_SYM2(sym, prefix, major, minor) \
prefix ## _machine_ ## major ## _ ## minor ## _ ## sym
#define _MACHINE_VER_SYM3(sym, prefix, major, minor, micro) \
prefix ## _machine_ ## major ## _ ## minor ## _ ## micro ## _ ## sym
#define _MACHINE_VER_SYM4(sym, prefix, major, minor, _unused_, tag) \
prefix ## _machine_ ## major ## _ ## minor ## _ ## tag ## _ ## sym
#define _MACHINE_VER_SYM5(sym, prefix, major, minor, micro, _unused_, tag) \
prefix ## _machine_ ## major ## _ ## minor ## _ ## micro ## _ ## tag ## _ ## sym
#define MACHINE_VER_SYM(sym, prefix, ...) \
_MACHINE_VER_PICK(__VA_ARGS__, \
_MACHINE_VER_SYM5, \
_MACHINE_VER_SYM4, \
_MACHINE_VER_SYM3, \
_MACHINE_VER_SYM2) (sym, prefix, __VA_ARGS__)
/*
* How many years/major releases for each phase
* of the life cycle. Assumes use of versioning
* scheme where major is bumped each year
*/
#define MACHINE_VER_DELETION_MAJOR 6
#define MACHINE_VER_DEPRECATION_MAJOR 3
/*
* Expands to a static string containing a deprecation
* message for a versioned machine type
*/
#define MACHINE_VER_DEPRECATION_MSG \
"machines more than " stringify(MACHINE_VER_DEPRECATION_MAJOR) \
" years old are subject to deletion after " \
stringify(MACHINE_VER_DELETION_MAJOR) " years"
#define _MACHINE_VER_IS_EXPIRED_IMPL(cutoff, major, minor) \
(((QEMU_VERSION_MAJOR - major) > cutoff) || \
(((QEMU_VERSION_MAJOR - major) == cutoff) && \
(QEMU_VERSION_MINOR - minor) >= 0))
#define _MACHINE_VER_IS_EXPIRED2(cutoff, major, minor) \
_MACHINE_VER_IS_EXPIRED_IMPL(cutoff, major, minor)
#define _MACHINE_VER_IS_EXPIRED3(cutoff, major, minor, micro) \
_MACHINE_VER_IS_EXPIRED_IMPL(cutoff, major, minor)
#define _MACHINE_VER_IS_EXPIRED4(cutoff, major, minor, _unused, tag) \
_MACHINE_VER_IS_EXPIRED_IMPL(cutoff, major, minor)
#define _MACHINE_VER_IS_EXPIRED5(cutoff, major, minor, micro, _unused, tag) \
_MACHINE_VER_IS_EXPIRED_IMPL(cutoff, major, minor)
#define _MACHINE_IS_EXPIRED(cutoff, ...) \
_MACHINE_VER_PICK(__VA_ARGS__, \
_MACHINE_VER_IS_EXPIRED5, \
_MACHINE_VER_IS_EXPIRED4, \
_MACHINE_VER_IS_EXPIRED3, \
_MACHINE_VER_IS_EXPIRED2) (cutoff, __VA_ARGS__)
/*
* Evaluates true when a machine type with (major, minor)
* or (major, minor, micro) version should be considered
* deprecated based on the current versioned machine type
* lifecycle rules
*/
#define MACHINE_VER_IS_DEPRECATED(...) \
_MACHINE_IS_EXPIRED(MACHINE_VER_DEPRECATION_MAJOR, __VA_ARGS__)
/*
* Evaluates true when a machine type with (major, minor)
* or (major, minor, micro) version should be considered
* for deletion based on the current versioned machine type
* lifecycle rules
*/
#define MACHINE_VER_SHOULD_DELETE(...) \
_MACHINE_IS_EXPIRED(MACHINE_VER_DELETION_MAJOR, __VA_ARGS__)
/*
* Sets the deprecation reason for a versioned machine based
* on its age
*
* This must be unconditionally used in the _class_init
* function for all machine types which support versioning.
*
* Initially it will effectively be a no-op, but after a
* suitable period of time has passed, it will set the
* 'deprecation_reason' field on the machine, to warn users
* about forthcoming removal.
*/
#define MACHINE_VER_DEPRECATION(...) \
do { \
if (MACHINE_VER_IS_DEPRECATED(__VA_ARGS__)) { \
mc->deprecation_reason = MACHINE_VER_DEPRECATION_MSG; \
} \
} while (0)
/*
* Prevents registration of a versioned machined based on
* its age
*
* This must be unconditionally used in the register
* method for all machine types which support versioning.
*
* Inijtially it will effectively be a no-op, but after a
* suitable period of time has passed, it will cause
* execution of the method to return, avoiding registration
* of the machine
*
* The new deprecation and deletion policy for versioned
* machine types was introduced in QEMU 9.1.0.
*
* Under the new policy a number of old machine types (any
* prior to 2.12) would be liable for immediate deletion
* which would be a violation of our historical deprecation
* and removal policy
*
* Thus deletions are temporarily gated on existance of
* the env variable "QEMU_DELETE_MACHINES" / QEMU version
* number >= 10.1.0. This gate can be deleted in the 10.1.0
* dev cycle
*/
#define MACHINE_VER_DELETION(...) \
do { \
if (MACHINE_VER_SHOULD_DELETE(__VA_ARGS__)) { \
if (getenv("QEMU_DELETE_MACHINES") || \
QEMU_VERSION_MAJOR > 10 || (QEMU_VERSION_MAJOR == 10 && \
QEMU_VERSION_MINOR >= 1)) { \
return; \
} \
} \
} while (0)
#define DEFINE_MACHINE(namestr, machine_initfn) \
static void machine_initfn##_class_init(ObjectClass *oc, void *data) \
{ \
MachineClass *mc = MACHINE_CLASS(oc); \
machine_initfn(mc); \
} \
static const TypeInfo machine_initfn##_typeinfo = { \
.name = MACHINE_TYPE_NAME(namestr), \
.parent = TYPE_MACHINE, \
.class_init = machine_initfn##_class_init, \
}; \
static void machine_initfn##_register_types(void) \
{ \
type_register_static(&machine_initfn##_typeinfo); \
} \
type_init(machine_initfn##_register_types)
extern GlobalProperty hw_compat_9_1[];
extern const size_t hw_compat_9_1_len;
extern GlobalProperty hw_compat_9_0[];
extern const size_t hw_compat_9_0_len;
extern GlobalProperty hw_compat_8_2[];
extern const size_t hw_compat_8_2_len;
extern GlobalProperty hw_compat_8_1[];
extern const size_t hw_compat_8_1_len;
extern GlobalProperty hw_compat_8_0[];
extern const size_t hw_compat_8_0_len;
extern GlobalProperty hw_compat_7_2[];
extern const size_t hw_compat_7_2_len;
extern GlobalProperty hw_compat_7_1[];
extern const size_t hw_compat_7_1_len;
extern GlobalProperty hw_compat_7_0[];
extern const size_t hw_compat_7_0_len;
extern GlobalProperty hw_compat_6_2[];
extern const size_t hw_compat_6_2_len;
extern GlobalProperty hw_compat_6_1[];
extern const size_t hw_compat_6_1_len;
extern GlobalProperty hw_compat_6_0[];
extern const size_t hw_compat_6_0_len;
extern GlobalProperty hw_compat_5_2[];
extern const size_t hw_compat_5_2_len;
extern GlobalProperty hw_compat_5_1[];
extern const size_t hw_compat_5_1_len;
extern GlobalProperty hw_compat_5_0[];
extern const size_t hw_compat_5_0_len;
extern GlobalProperty hw_compat_4_2[];
extern const size_t hw_compat_4_2_len;
extern GlobalProperty hw_compat_4_1[];
extern const size_t hw_compat_4_1_len;
extern GlobalProperty hw_compat_4_0[];
extern const size_t hw_compat_4_0_len;
extern GlobalProperty hw_compat_3_1[];
extern const size_t hw_compat_3_1_len;
extern GlobalProperty hw_compat_3_0[];
extern const size_t hw_compat_3_0_len;
extern GlobalProperty hw_compat_2_12[];
extern const size_t hw_compat_2_12_len;
extern GlobalProperty hw_compat_2_11[];
extern const size_t hw_compat_2_11_len;
extern GlobalProperty hw_compat_2_10[];
extern const size_t hw_compat_2_10_len;
extern GlobalProperty hw_compat_2_9[];
extern const size_t hw_compat_2_9_len;
extern GlobalProperty hw_compat_2_8[];
extern const size_t hw_compat_2_8_len;
extern GlobalProperty hw_compat_2_7[];
extern const size_t hw_compat_2_7_len;
extern GlobalProperty hw_compat_2_6[];
extern const size_t hw_compat_2_6_len;
extern GlobalProperty hw_compat_2_5[];
extern const size_t hw_compat_2_5_len;
extern GlobalProperty hw_compat_2_4[];
extern const size_t hw_compat_2_4_len;
extern GlobalProperty hw_compat_2_3[];
extern const size_t hw_compat_2_3_len;
extern GlobalProperty hw_compat_2_2[];
extern const size_t hw_compat_2_2_len;
extern GlobalProperty hw_compat_2_1[];
extern const size_t hw_compat_2_1_len;
#endif
Reference in New Issue View Git Blame Copy Permalink