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ca6155c0f2
This series removes ad hoc RAM allocation API (memory_region_allocate_system_memory) and consolidates it around hostmem backend. It allows to * resolve conflicts between global -mem-prealloc and hostmem's "policy" option, fixing premature allocation before binding policy is applied * simplify complicated memory allocation routines which had to deal with 2 ways to allocate RAM. * reuse hostmem backends of a choice for main RAM without adding extra CLI options to duplicate hostmem features. A recent case was -mem-shared, to enable vhost-user on targets that don't support hostmem backends [1] (ex: s390) * move RAM allocation from individual boards into generic machine code and provide them with prepared MemoryRegion. * clean up deprecated NUMA features which were tied to the old API (see patches) - "numa: remove deprecated -mem-path fallback to anonymous RAM" - (POSTPONED, waiting on libvirt side) "forbid '-numa node,mem' for 5.0 and newer machine types" - (POSTPONED) "numa: remove deprecated implicit RAM distribution between nodes" Introduce a new machine.memory-backend property and wrapper code that aliases global -mem-path and -mem-alloc into automatically created hostmem backend properties (provided memory-backend was not set explicitly given by user). A bulk of trivial patches then follow to incrementally convert individual boards to using machine.memory-backend provided MemoryRegion. Board conversion typically involves: * providing MachineClass::default_ram_size and MachineClass::default_ram_id so generic code could create default backend if user didn't explicitly provide memory-backend or -m options * dropping memory_region_allocate_system_memory() call * using convenience MachineState::ram MemoryRegion, which points to MemoryRegion allocated by ram-memdev On top of that for some boards: * missing ram_size checks are added (typically it were boards with fixed ram size) * ram_size fixups are replaced by checks and hard errors, forcing user to provide correct "-m" values instead of ignoring it and continuing running. After all boards are converted, the old API is removed and memory allocation routines are cleaned up.
133 lines
3.9 KiB
C
133 lines
3.9 KiB
C
#ifndef SYSEMU_H
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#define SYSEMU_H
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/* Misc. things related to the system emulator. */
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#include "qemu/timer.h"
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#include "qemu/notify.h"
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#include "qemu/uuid.h"
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#include "qom/object.h"
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/* vl.c */
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extern const char *bios_name;
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extern int only_migratable;
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extern const char *qemu_name;
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extern QemuUUID qemu_uuid;
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extern bool qemu_uuid_set;
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void qemu_add_exit_notifier(Notifier *notify);
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void qemu_remove_exit_notifier(Notifier *notify);
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extern bool machine_init_done;
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void qemu_add_machine_init_done_notifier(Notifier *notify);
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void qemu_remove_machine_init_done_notifier(Notifier *notify);
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extern int autostart;
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typedef enum {
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VGA_NONE, VGA_STD, VGA_CIRRUS, VGA_VMWARE, VGA_XENFB, VGA_QXL,
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VGA_TCX, VGA_CG3, VGA_DEVICE, VGA_VIRTIO,
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VGA_TYPE_MAX,
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} VGAInterfaceType;
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extern int vga_interface_type;
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extern int graphic_width;
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extern int graphic_height;
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extern int graphic_depth;
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extern int display_opengl;
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extern const char *keyboard_layout;
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extern int win2k_install_hack;
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extern int alt_grab;
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extern int ctrl_grab;
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extern int graphic_rotate;
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extern int no_shutdown;
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extern int old_param;
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extern int boot_menu;
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extern bool boot_strict;
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extern uint8_t *boot_splash_filedata;
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extern bool enable_mlock;
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extern bool enable_cpu_pm;
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extern QEMUClockType rtc_clock;
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#define MAX_OPTION_ROMS 16
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typedef struct QEMUOptionRom {
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const char *name;
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int32_t bootindex;
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} QEMUOptionRom;
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extern QEMUOptionRom option_rom[MAX_OPTION_ROMS];
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extern int nb_option_roms;
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#define MAX_PROM_ENVS 128
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extern const char *prom_envs[MAX_PROM_ENVS];
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extern unsigned int nb_prom_envs;
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/* generic hotplug */
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void hmp_drive_add(Monitor *mon, const QDict *qdict);
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/* pcie aer error injection */
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void hmp_pcie_aer_inject_error(Monitor *mon, const QDict *qdict);
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/* serial ports */
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/* Return the Chardev for serial port i, or NULL if none */
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Chardev *serial_hd(int i);
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/* return the number of serial ports defined by the user. serial_hd(i)
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* will always return NULL for any i which is greater than or equal to this.
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*/
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int serial_max_hds(void);
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/* parallel ports */
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#define MAX_PARALLEL_PORTS 3
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extern Chardev *parallel_hds[MAX_PARALLEL_PORTS];
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void hmp_info_usb(Monitor *mon, const QDict *qdict);
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void add_boot_device_path(int32_t bootindex, DeviceState *dev,
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const char *suffix);
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char *get_boot_devices_list(size_t *size);
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DeviceState *get_boot_device(uint32_t position);
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void check_boot_index(int32_t bootindex, Error **errp);
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void del_boot_device_path(DeviceState *dev, const char *suffix);
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void device_add_bootindex_property(Object *obj, int32_t *bootindex,
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const char *name, const char *suffix,
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DeviceState *dev, Error **errp);
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void restore_boot_order(void *opaque);
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void validate_bootdevices(const char *devices, Error **errp);
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void add_boot_device_lchs(DeviceState *dev, const char *suffix,
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uint32_t lcyls, uint32_t lheads, uint32_t lsecs);
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void del_boot_device_lchs(DeviceState *dev, const char *suffix);
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char *get_boot_devices_lchs_list(size_t *size);
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/* handler to set the boot_device order for a specific type of MachineClass */
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typedef void QEMUBootSetHandler(void *opaque, const char *boot_order,
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Error **errp);
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void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
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void qemu_boot_set(const char *boot_order, Error **errp);
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QemuOpts *qemu_get_machine_opts(void);
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bool defaults_enabled(void);
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void qemu_init(int argc, char **argv, char **envp);
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void qemu_main_loop(void);
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void qemu_cleanup(void);
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extern QemuOptsList qemu_legacy_drive_opts;
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extern QemuOptsList qemu_common_drive_opts;
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extern QemuOptsList qemu_drive_opts;
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extern QemuOptsList bdrv_runtime_opts;
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extern QemuOptsList qemu_chardev_opts;
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extern QemuOptsList qemu_device_opts;
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extern QemuOptsList qemu_netdev_opts;
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extern QemuOptsList qemu_nic_opts;
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extern QemuOptsList qemu_net_opts;
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extern QemuOptsList qemu_global_opts;
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extern QemuOptsList qemu_semihosting_config_opts;
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#endif
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