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Diffstat (limited to 'include/qom/cpu.h')
| -rw-r--r-- | include/qom/cpu.h | 1129 |
1 files changed, 0 insertions, 1129 deletions
diff --git a/include/qom/cpu.h b/include/qom/cpu.h deleted file mode 100644 index ddb91bb..0000000 --- a/include/qom/cpu.h +++ /dev/null @@ -1,1129 +0,0 @@ -/* - * QEMU CPU model - * - * Copyright (c) 2012 SUSE LINUX Products GmbH - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see - * <http://www.gnu.org/licenses/gpl-2.0.html> - */ -#ifndef QEMU_CPU_H -#define QEMU_CPU_H - -#include "hw/qdev-core.h" -#include "disas/dis-asm.h" -#include "exec/hwaddr.h" -#include "exec/memattrs.h" -#include "qapi/qapi-types-run-state.h" -#include "qemu/bitmap.h" -#include "qemu/rcu_queue.h" -#include "qemu/queue.h" -#include "qemu/thread.h" - -typedef int (*WriteCoreDumpFunction)(const void *buf, size_t size, - void *opaque); - -/** - * vaddr: - * Type wide enough to contain any #target_ulong virtual address. - */ -typedef uint64_t vaddr; -#define VADDR_PRId PRId64 -#define VADDR_PRIu PRIu64 -#define VADDR_PRIo PRIo64 -#define VADDR_PRIx PRIx64 -#define VADDR_PRIX PRIX64 -#define VADDR_MAX UINT64_MAX - -/** - * SECTION:cpu - * @section_id: QEMU-cpu - * @title: CPU Class - * @short_description: Base class for all CPUs - */ - -#define TYPE_CPU "cpu" - -/* Since this macro is used a lot in hot code paths and in conjunction with - * FooCPU *foo_env_get_cpu(), we deviate from usual QOM practice by using - * an unchecked cast. - */ -#define CPU(obj) ((CPUState *)(obj)) - -#define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU) -#define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU) - -typedef enum MMUAccessType { - MMU_DATA_LOAD = 0, - MMU_DATA_STORE = 1, - MMU_INST_FETCH = 2 -} MMUAccessType; - -typedef struct CPUWatchpoint CPUWatchpoint; - -typedef void (*CPUUnassignedAccess)(CPUState *cpu, hwaddr addr, - bool is_write, bool is_exec, int opaque, - unsigned size); - -struct TranslationBlock; - -/** - * CPUClass: - * @class_by_name: Callback to map -cpu command line model name to an - * instantiatable CPU type. - * @parse_features: Callback to parse command line arguments. - * @reset: Callback to reset the #CPUState to its initial state. - * @reset_dump_flags: #CPUDumpFlags to use for reset logging. - * @has_work: Callback for checking if there is work to do. - * @do_interrupt: Callback for interrupt handling. - * @do_unassigned_access: Callback for unassigned access handling. - * (this is deprecated: new targets should use do_transaction_failed instead) - * @do_unaligned_access: Callback for unaligned access handling, if - * the target defines #ALIGNED_ONLY. - * @do_transaction_failed: Callback for handling failed memory transactions - * (ie bus faults or external aborts; not MMU faults) - * @virtio_is_big_endian: Callback to return %true if a CPU which supports - * runtime configurable endianness is currently big-endian. Non-configurable - * CPUs can use the default implementation of this method. This method should - * not be used by any callers other than the pre-1.0 virtio devices. - * @memory_rw_debug: Callback for GDB memory access. - * @dump_state: Callback for dumping state. - * @dump_statistics: Callback for dumping statistics. - * @get_arch_id: Callback for getting architecture-dependent CPU ID. - * @get_paging_enabled: Callback for inquiring whether paging is enabled. - * @get_memory_mapping: Callback for obtaining the memory mappings. - * @set_pc: Callback for setting the Program Counter register. This - * should have the semantics used by the target architecture when - * setting the PC from a source such as an ELF file entry point; - * for example on Arm it will also set the Thumb mode bit based - * on the least significant bit of the new PC value. - * If the target behaviour here is anything other than "set - * the PC register to the value passed in" then the target must - * also implement the synchronize_from_tb hook. - * @synchronize_from_tb: Callback for synchronizing state from a TCG - * #TranslationBlock. This is called when we abandon execution - * of a TB before starting it, and must set all parts of the CPU - * state which the previous TB in the chain may not have updated. - * This always includes at least the program counter; some targets - * will need to do more. If this hook is not implemented then the - * default is to call @set_pc(tb->pc). - * @tlb_fill: Callback for handling a softmmu tlb miss or user-only - * address fault. For system mode, if the access is valid, call - * tlb_set_page and return true; if the access is invalid, and - * probe is true, return false; otherwise raise an exception and - * do not return. For user-only mode, always raise an exception - * and do not return. - * @get_phys_page_debug: Callback for obtaining a physical address. - * @get_phys_page_attrs_debug: Callback for obtaining a physical address and the - * associated memory transaction attributes to use for the access. - * CPUs which use memory transaction attributes should implement this - * instead of get_phys_page_debug. - * @asidx_from_attrs: Callback to return the CPU AddressSpace to use for - * a memory access with the specified memory transaction attributes. - * @gdb_read_register: Callback for letting GDB read a register. - * @gdb_write_register: Callback for letting GDB write a register. - * @debug_check_watchpoint: Callback: return true if the architectural - * watchpoint whose address has matched should really fire. - * @debug_excp_handler: Callback for handling debug exceptions. - * @write_elf64_note: Callback for writing a CPU-specific ELF note to a - * 64-bit VM coredump. - * @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF - * note to a 32-bit VM coredump. - * @write_elf32_note: Callback for writing a CPU-specific ELF note to a - * 32-bit VM coredump. - * @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF - * note to a 32-bit VM coredump. - * @vmsd: State description for migration. - * @gdb_num_core_regs: Number of core registers accessible to GDB. - * @gdb_core_xml_file: File name for core registers GDB XML description. - * @gdb_stop_before_watchpoint: Indicates whether GDB expects the CPU to stop - * before the insn which triggers a watchpoint rather than after it. - * @gdb_arch_name: Optional callback that returns the architecture name known - * to GDB. The caller must free the returned string with g_free. - * @gdb_get_dynamic_xml: Callback to return dynamically generated XML for the - * gdb stub. Returns a pointer to the XML contents for the specified XML file - * or NULL if the CPU doesn't have a dynamically generated content for it. - * @cpu_exec_enter: Callback for cpu_exec preparation. - * @cpu_exec_exit: Callback for cpu_exec cleanup. - * @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec. - * @disas_set_info: Setup architecture specific components of disassembly info - * @adjust_watchpoint_address: Perform a target-specific adjustment to an - * address before attempting to match it against watchpoints. - * - * Represents a CPU family or model. - */ -typedef struct CPUClass { - /*< private >*/ - DeviceClass parent_class; - /*< public >*/ - - ObjectClass *(*class_by_name)(const char *cpu_model); - void (*parse_features)(const char *typename, char *str, Error **errp); - - void (*reset)(CPUState *cpu); - int reset_dump_flags; - bool (*has_work)(CPUState *cpu); - void (*do_interrupt)(CPUState *cpu); - CPUUnassignedAccess do_unassigned_access; - void (*do_unaligned_access)(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr); - void (*do_transaction_failed)(CPUState *cpu, hwaddr physaddr, vaddr addr, - unsigned size, MMUAccessType access_type, - int mmu_idx, MemTxAttrs attrs, - MemTxResult response, uintptr_t retaddr); - bool (*virtio_is_big_endian)(CPUState *cpu); - int (*memory_rw_debug)(CPUState *cpu, vaddr addr, - uint8_t *buf, int len, bool is_write); - void (*dump_state)(CPUState *cpu, FILE *, int flags); - GuestPanicInformation* (*get_crash_info)(CPUState *cpu); - void (*dump_statistics)(CPUState *cpu, int flags); - int64_t (*get_arch_id)(CPUState *cpu); - bool (*get_paging_enabled)(const CPUState *cpu); - void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list, - Error **errp); - void (*set_pc)(CPUState *cpu, vaddr value); - void (*synchronize_from_tb)(CPUState *cpu, struct TranslationBlock *tb); - bool (*tlb_fill)(CPUState *cpu, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); - hwaddr (*get_phys_page_debug)(CPUState *cpu, vaddr addr); - hwaddr (*get_phys_page_attrs_debug)(CPUState *cpu, vaddr addr, - MemTxAttrs *attrs); - int (*asidx_from_attrs)(CPUState *cpu, MemTxAttrs attrs); - int (*gdb_read_register)(CPUState *cpu, uint8_t *buf, int reg); - int (*gdb_write_register)(CPUState *cpu, uint8_t *buf, int reg); - bool (*debug_check_watchpoint)(CPUState *cpu, CPUWatchpoint *wp); - void (*debug_excp_handler)(CPUState *cpu); - - int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque); - int (*write_elf64_qemunote)(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque); - int (*write_elf32_note)(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque); - int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque); - - const VMStateDescription *vmsd; - const char *gdb_core_xml_file; - gchar * (*gdb_arch_name)(CPUState *cpu); - const char * (*gdb_get_dynamic_xml)(CPUState *cpu, const char *xmlname); - void (*cpu_exec_enter)(CPUState *cpu); - void (*cpu_exec_exit)(CPUState *cpu); - bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request); - - void (*disas_set_info)(CPUState *cpu, disassemble_info *info); - vaddr (*adjust_watchpoint_address)(CPUState *cpu, vaddr addr, int len); - void (*tcg_initialize)(void); - - /* Keep non-pointer data at the end to minimize holes. */ - int gdb_num_core_regs; - bool gdb_stop_before_watchpoint; -} CPUClass; - -/* - * Low 16 bits: number of cycles left, used only in icount mode. - * High 16 bits: Set to -1 to force TCG to stop executing linked TBs - * for this CPU and return to its top level loop (even in non-icount mode). - * This allows a single read-compare-cbranch-write sequence to test - * for both decrementer underflow and exceptions. - */ -typedef union IcountDecr { - uint32_t u32; - struct { -#ifdef HOST_WORDS_BIGENDIAN - uint16_t high; - uint16_t low; -#else - uint16_t low; - uint16_t high; -#endif - } u16; -} IcountDecr; - -typedef struct CPUBreakpoint { - vaddr pc; - int flags; /* BP_* */ - QTAILQ_ENTRY(CPUBreakpoint) entry; -} CPUBreakpoint; - -struct CPUWatchpoint { - vaddr vaddr; - vaddr len; - vaddr hitaddr; - MemTxAttrs hitattrs; - int flags; /* BP_* */ - QTAILQ_ENTRY(CPUWatchpoint) entry; -}; - -struct KVMState; -struct kvm_run; - -struct hax_vcpu_state; - -#define TB_JMP_CACHE_BITS 12 -#define TB_JMP_CACHE_SIZE (1 << TB_JMP_CACHE_BITS) - -/* work queue */ - -/* The union type allows passing of 64 bit target pointers on 32 bit - * hosts in a single parameter - */ -typedef union { - int host_int; - unsigned long host_ulong; - void *host_ptr; - vaddr target_ptr; -} run_on_cpu_data; - -#define RUN_ON_CPU_HOST_PTR(p) ((run_on_cpu_data){.host_ptr = (p)}) -#define RUN_ON_CPU_HOST_INT(i) ((run_on_cpu_data){.host_int = (i)}) -#define RUN_ON_CPU_HOST_ULONG(ul) ((run_on_cpu_data){.host_ulong = (ul)}) -#define RUN_ON_CPU_TARGET_PTR(v) ((run_on_cpu_data){.target_ptr = (v)}) -#define RUN_ON_CPU_NULL RUN_ON_CPU_HOST_PTR(NULL) - -typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data); - -struct qemu_work_item; - -#define CPU_UNSET_NUMA_NODE_ID -1 -#define CPU_TRACE_DSTATE_MAX_EVENTS 32 - -/** - * CPUState: - * @cpu_index: CPU index (informative). - * @cluster_index: Identifies which cluster this CPU is in. - * For boards which don't define clusters or for "loose" CPUs not assigned - * to a cluster this will be UNASSIGNED_CLUSTER_INDEX; otherwise it will - * be the same as the cluster-id property of the CPU object's TYPE_CPU_CLUSTER - * QOM parent. - * @nr_cores: Number of cores within this CPU package. - * @nr_threads: Number of threads within this CPU. - * @running: #true if CPU is currently running (lockless). - * @has_waiter: #true if a CPU is currently waiting for the cpu_exec_end; - * valid under cpu_list_lock. - * @created: Indicates whether the CPU thread has been successfully created. - * @interrupt_request: Indicates a pending interrupt request. - * @halted: Nonzero if the CPU is in suspended state. - * @stop: Indicates a pending stop request. - * @stopped: Indicates the CPU has been artificially stopped. - * @unplug: Indicates a pending CPU unplug request. - * @crash_occurred: Indicates the OS reported a crash (panic) for this CPU - * @singlestep_enabled: Flags for single-stepping. - * @icount_extra: Instructions until next timer event. - * @can_do_io: Nonzero if memory-mapped IO is safe. Deterministic execution - * requires that IO only be performed on the last instruction of a TB - * so that interrupts take effect immediately. - * @cpu_ases: Pointer to array of CPUAddressSpaces (which define the - * AddressSpaces this CPU has) - * @num_ases: number of CPUAddressSpaces in @cpu_ases - * @as: Pointer to the first AddressSpace, for the convenience of targets which - * only have a single AddressSpace - * @env_ptr: Pointer to subclass-specific CPUArchState field. - * @icount_decr_ptr: Pointer to IcountDecr field within subclass. - * @gdb_regs: Additional GDB registers. - * @gdb_num_regs: Number of total registers accessible to GDB. - * @gdb_num_g_regs: Number of registers in GDB 'g' packets. - * @next_cpu: Next CPU sharing TB cache. - * @opaque: User data. - * @mem_io_pc: Host Program Counter at which the memory was accessed. - * @mem_io_vaddr: Target virtual address at which the memory was accessed. - * @kvm_fd: vCPU file descriptor for KVM. - * @work_mutex: Lock to prevent multiple access to queued_work_*. - * @queued_work_first: First asynchronous work pending. - * @trace_dstate_delayed: Delayed changes to trace_dstate (includes all changes - * to @trace_dstate). - * @trace_dstate: Dynamic tracing state of events for this vCPU (bitmask). - * @ignore_memory_transaction_failures: Cached copy of the MachineState - * flag of the same name: allows the board to suppress calling of the - * CPU do_transaction_failed hook function. - * - * State of one CPU core or thread. - */ -struct CPUState { - /*< private >*/ - DeviceState parent_obj; - /*< public >*/ - - int nr_cores; - int nr_threads; - - struct QemuThread *thread; -#ifdef _WIN32 - HANDLE hThread; -#endif - int thread_id; - bool running, has_waiter; - struct QemuCond *halt_cond; - bool thread_kicked; - bool created; - bool stop; - bool stopped; - bool unplug; - bool crash_occurred; - bool exit_request; - uint32_t cflags_next_tb; - /* updates protected by BQL */ - uint32_t interrupt_request; - int singlestep_enabled; - int64_t icount_budget; - int64_t icount_extra; - uint64_t random_seed; - sigjmp_buf jmp_env; - - QemuMutex work_mutex; - struct qemu_work_item *queued_work_first, *queued_work_last; - - CPUAddressSpace *cpu_ases; - int num_ases; - AddressSpace *as; - MemoryRegion *memory; - - void *env_ptr; /* CPUArchState */ - IcountDecr *icount_decr_ptr; - - /* Accessed in parallel; all accesses must be atomic */ - struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE]; - - struct GDBRegisterState *gdb_regs; - int gdb_num_regs; - int gdb_num_g_regs; - QTAILQ_ENTRY(CPUState) node; - - /* ice debug support */ - QTAILQ_HEAD(, CPUBreakpoint) breakpoints; - - QTAILQ_HEAD(, CPUWatchpoint) watchpoints; - CPUWatchpoint *watchpoint_hit; - - void *opaque; - - /* In order to avoid passing too many arguments to the MMIO helpers, - * we store some rarely used information in the CPU context. - */ - uintptr_t mem_io_pc; - vaddr mem_io_vaddr; - /* - * This is only needed for the legacy cpu_unassigned_access() hook; - * when all targets using it have been converted to use - * cpu_transaction_failed() instead it can be removed. - */ - MMUAccessType mem_io_access_type; - - int kvm_fd; - struct KVMState *kvm_state; - struct kvm_run *kvm_run; - - /* Used for events with 'vcpu' and *without* the 'disabled' properties */ - DECLARE_BITMAP(trace_dstate_delayed, CPU_TRACE_DSTATE_MAX_EVENTS); - DECLARE_BITMAP(trace_dstate, CPU_TRACE_DSTATE_MAX_EVENTS); - - /* TODO Move common fields from CPUArchState here. */ - int cpu_index; - int cluster_index; - uint32_t halted; - uint32_t can_do_io; - int32_t exception_index; - - /* shared by kvm, hax and hvf */ - bool vcpu_dirty; - - /* Used to keep track of an outstanding cpu throttle thread for migration - * autoconverge - */ - bool throttle_thread_scheduled; - - bool ignore_memory_transaction_failures; - - struct hax_vcpu_state *hax_vcpu; - - int hvf_fd; - - /* track IOMMUs whose translations we've cached in the TCG TLB */ - GArray *iommu_notifiers; -}; - -typedef QTAILQ_HEAD(CPUTailQ, CPUState) CPUTailQ; -extern CPUTailQ cpus; - -#define first_cpu QTAILQ_FIRST_RCU(&cpus) -#define CPU_NEXT(cpu) QTAILQ_NEXT_RCU(cpu, node) -#define CPU_FOREACH(cpu) QTAILQ_FOREACH_RCU(cpu, &cpus, node) -#define CPU_FOREACH_SAFE(cpu, next_cpu) \ - QTAILQ_FOREACH_SAFE_RCU(cpu, &cpus, node, next_cpu) - -extern __thread CPUState *current_cpu; - -static inline void cpu_tb_jmp_cache_clear(CPUState *cpu) -{ - unsigned int i; - - for (i = 0; i < TB_JMP_CACHE_SIZE; i++) { - atomic_set(&cpu->tb_jmp_cache[i], NULL); - } -} - -/** - * qemu_tcg_mttcg_enabled: - * Check whether we are running MultiThread TCG or not. - * - * Returns: %true if we are in MTTCG mode %false otherwise. - */ -extern bool mttcg_enabled; -#define qemu_tcg_mttcg_enabled() (mttcg_enabled) - -/** - * cpu_paging_enabled: - * @cpu: The CPU whose state is to be inspected. - * - * Returns: %true if paging is enabled, %false otherwise. - */ -bool cpu_paging_enabled(const CPUState *cpu); - -/** - * cpu_get_memory_mapping: - * @cpu: The CPU whose memory mappings are to be obtained. - * @list: Where to write the memory mappings to. - * @errp: Pointer for reporting an #Error. - */ -void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list, - Error **errp); - -/** - * cpu_write_elf64_note: - * @f: pointer to a function that writes memory to a file - * @cpu: The CPU whose memory is to be dumped - * @cpuid: ID number of the CPU - * @opaque: pointer to the CPUState struct - */ -int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque); - -/** - * cpu_write_elf64_qemunote: - * @f: pointer to a function that writes memory to a file - * @cpu: The CPU whose memory is to be dumped - * @cpuid: ID number of the CPU - * @opaque: pointer to the CPUState struct - */ -int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque); - -/** - * cpu_write_elf32_note: - * @f: pointer to a function that writes memory to a file - * @cpu: The CPU whose memory is to be dumped - * @cpuid: ID number of the CPU - * @opaque: pointer to the CPUState struct - */ -int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu, - int cpuid, void *opaque); - -/** - * cpu_write_elf32_qemunote: - * @f: pointer to a function that writes memory to a file - * @cpu: The CPU whose memory is to be dumped - * @cpuid: ID number of the CPU - * @opaque: pointer to the CPUState struct - */ -int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu, - void *opaque); - -/** - * cpu_get_crash_info: - * @cpu: The CPU to get crash information for - * - * Gets the previously saved crash information. - * Caller is responsible for freeing the data. - */ -GuestPanicInformation *cpu_get_crash_info(CPUState *cpu); - -/** - * CPUDumpFlags: - * @CPU_DUMP_CODE: - * @CPU_DUMP_FPU: dump FPU register state, not just integer - * @CPU_DUMP_CCOP: dump info about TCG QEMU's condition code optimization state - */ -enum CPUDumpFlags { - CPU_DUMP_CODE = 0x00010000, - CPU_DUMP_FPU = 0x00020000, - CPU_DUMP_CCOP = 0x00040000, -}; - -/** - * cpu_dump_state: - * @cpu: The CPU whose state is to be dumped. - * @f: If non-null, dump to this stream, else to current print sink. - * - * Dumps CPU state. - */ -void cpu_dump_state(CPUState *cpu, FILE *f, int flags); - -/** - * cpu_dump_statistics: - * @cpu: The CPU whose state is to be dumped. - * @flags: Flags what to dump. - * - * Dump CPU statistics to the current monitor if we have one, else to - * stdout. - */ -void cpu_dump_statistics(CPUState *cpu, int flags); - -#ifndef CONFIG_USER_ONLY -/** - * cpu_get_phys_page_attrs_debug: - * @cpu: The CPU to obtain the physical page address for. - * @addr: The virtual address. - * @attrs: Updated on return with the memory transaction attributes to use - * for this access. - * - * Obtains the physical page corresponding to a virtual one, together - * with the corresponding memory transaction attributes to use for the access. - * Use it only for debugging because no protection checks are done. - * - * Returns: Corresponding physical page address or -1 if no page found. - */ -static inline hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr, - MemTxAttrs *attrs) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (cc->get_phys_page_attrs_debug) { - return cc->get_phys_page_attrs_debug(cpu, addr, attrs); - } - /* Fallback for CPUs which don't implement the _attrs_ hook */ - *attrs = MEMTXATTRS_UNSPECIFIED; - return cc->get_phys_page_debug(cpu, addr); -} - -/** - * cpu_get_phys_page_debug: - * @cpu: The CPU to obtain the physical page address for. - * @addr: The virtual address. - * - * Obtains the physical page corresponding to a virtual one. - * Use it only for debugging because no protection checks are done. - * - * Returns: Corresponding physical page address or -1 if no page found. - */ -static inline hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr) -{ - MemTxAttrs attrs = {}; - - return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs); -} - -/** cpu_asidx_from_attrs: - * @cpu: CPU - * @attrs: memory transaction attributes - * - * Returns the address space index specifying the CPU AddressSpace - * to use for a memory access with the given transaction attributes. - */ -static inline int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - int ret = 0; - - if (cc->asidx_from_attrs) { - ret = cc->asidx_from_attrs(cpu, attrs); - assert(ret < cpu->num_ases && ret >= 0); - } - return ret; -} -#endif - -/** - * cpu_list_add: - * @cpu: The CPU to be added to the list of CPUs. - */ -void cpu_list_add(CPUState *cpu); - -/** - * cpu_list_remove: - * @cpu: The CPU to be removed from the list of CPUs. - */ -void cpu_list_remove(CPUState *cpu); - -/** - * cpu_reset: - * @cpu: The CPU whose state is to be reset. - */ -void cpu_reset(CPUState *cpu); - -/** - * cpu_class_by_name: - * @typename: The CPU base type. - * @cpu_model: The model string without any parameters. - * - * Looks up a CPU #ObjectClass matching name @cpu_model. - * - * Returns: A #CPUClass or %NULL if not matching class is found. - */ -ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model); - -/** - * cpu_create: - * @typename: The CPU type. - * - * Instantiates a CPU and realizes the CPU. - * - * Returns: A #CPUState or %NULL if an error occurred. - */ -CPUState *cpu_create(const char *typename); - -/** - * parse_cpu_option: - * @cpu_option: The -cpu option including optional parameters. - * - * processes optional parameters and registers them as global properties - * - * Returns: type of CPU to create or prints error and terminates process - * if an error occurred. - */ -const char *parse_cpu_option(const char *cpu_option); - -/** - * cpu_has_work: - * @cpu: The vCPU to check. - * - * Checks whether the CPU has work to do. - * - * Returns: %true if the CPU has work, %false otherwise. - */ -static inline bool cpu_has_work(CPUState *cpu) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - g_assert(cc->has_work); - return cc->has_work(cpu); -} - -/** - * qemu_cpu_is_self: - * @cpu: The vCPU to check against. - * - * Checks whether the caller is executing on the vCPU thread. - * - * Returns: %true if called from @cpu's thread, %false otherwise. - */ -bool qemu_cpu_is_self(CPUState *cpu); - -/** - * qemu_cpu_kick: - * @cpu: The vCPU to kick. - * - * Kicks @cpu's thread. - */ -void qemu_cpu_kick(CPUState *cpu); - -/** - * cpu_is_stopped: - * @cpu: The CPU to check. - * - * Checks whether the CPU is stopped. - * - * Returns: %true if run state is not running or if artificially stopped; - * %false otherwise. - */ -bool cpu_is_stopped(CPUState *cpu); - -/** - * do_run_on_cpu: - * @cpu: The vCPU to run on. - * @func: The function to be executed. - * @data: Data to pass to the function. - * @mutex: Mutex to release while waiting for @func to run. - * - * Used internally in the implementation of run_on_cpu. - */ -void do_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data, - QemuMutex *mutex); - -/** - * run_on_cpu: - * @cpu: The vCPU to run on. - * @func: The function to be executed. - * @data: Data to pass to the function. - * - * Schedules the function @func for execution on the vCPU @cpu. - */ -void run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data); - -/** - * async_run_on_cpu: - * @cpu: The vCPU to run on. - * @func: The function to be executed. - * @data: Data to pass to the function. - * - * Schedules the function @func for execution on the vCPU @cpu asynchronously. - */ -void async_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data); - -/** - * async_safe_run_on_cpu: - * @cpu: The vCPU to run on. - * @func: The function to be executed. - * @data: Data to pass to the function. - * - * Schedules the function @func for execution on the vCPU @cpu asynchronously, - * while all other vCPUs are sleeping. - * - * Unlike run_on_cpu and async_run_on_cpu, the function is run outside the - * BQL. - */ -void async_safe_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data); - -/** - * qemu_get_cpu: - * @index: The CPUState@cpu_index value of the CPU to obtain. - * - * Gets a CPU matching @index. - * - * Returns: The CPU or %NULL if there is no matching CPU. - */ -CPUState *qemu_get_cpu(int index); - -/** - * cpu_exists: - * @id: Guest-exposed CPU ID to lookup. - * - * Search for CPU with specified ID. - * - * Returns: %true - CPU is found, %false - CPU isn't found. - */ -bool cpu_exists(int64_t id); - -/** - * cpu_by_arch_id: - * @id: Guest-exposed CPU ID of the CPU to obtain. - * - * Get a CPU with matching @id. - * - * Returns: The CPU or %NULL if there is no matching CPU. - */ -CPUState *cpu_by_arch_id(int64_t id); - -/** - * cpu_throttle_set: - * @new_throttle_pct: Percent of sleep time. Valid range is 1 to 99. - * - * Throttles all vcpus by forcing them to sleep for the given percentage of - * time. A throttle_percentage of 25 corresponds to a 75% duty cycle roughly. - * (example: 10ms sleep for every 30ms awake). - * - * cpu_throttle_set can be called as needed to adjust new_throttle_pct. - * Once the throttling starts, it will remain in effect until cpu_throttle_stop - * is called. - */ -void cpu_throttle_set(int new_throttle_pct); - -/** - * cpu_throttle_stop: - * - * Stops the vcpu throttling started by cpu_throttle_set. - */ -void cpu_throttle_stop(void); - -/** - * cpu_throttle_active: - * - * Returns: %true if the vcpus are currently being throttled, %false otherwise. - */ -bool cpu_throttle_active(void); - -/** - * cpu_throttle_get_percentage: - * - * Returns the vcpu throttle percentage. See cpu_throttle_set for details. - * - * Returns: The throttle percentage in range 1 to 99. - */ -int cpu_throttle_get_percentage(void); - -#ifndef CONFIG_USER_ONLY - -typedef void (*CPUInterruptHandler)(CPUState *, int); - -extern CPUInterruptHandler cpu_interrupt_handler; - -/** - * cpu_interrupt: - * @cpu: The CPU to set an interrupt on. - * @mask: The interrupts to set. - * - * Invokes the interrupt handler. - */ -static inline void cpu_interrupt(CPUState *cpu, int mask) -{ - cpu_interrupt_handler(cpu, mask); -} - -#else /* USER_ONLY */ - -void cpu_interrupt(CPUState *cpu, int mask); - -#endif /* USER_ONLY */ - -#ifdef NEED_CPU_H - -#ifdef CONFIG_SOFTMMU -static inline void cpu_unassigned_access(CPUState *cpu, hwaddr addr, - bool is_write, bool is_exec, - int opaque, unsigned size) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (cc->do_unassigned_access) { - cc->do_unassigned_access(cpu, addr, is_write, is_exec, opaque, size); - } -} - -static inline void cpu_unaligned_access(CPUState *cpu, vaddr addr, - MMUAccessType access_type, - int mmu_idx, uintptr_t retaddr) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - cc->do_unaligned_access(cpu, addr, access_type, mmu_idx, retaddr); -} - -static inline void cpu_transaction_failed(CPUState *cpu, hwaddr physaddr, - vaddr addr, unsigned size, - MMUAccessType access_type, - int mmu_idx, MemTxAttrs attrs, - MemTxResult response, - uintptr_t retaddr) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - if (!cpu->ignore_memory_transaction_failures && cc->do_transaction_failed) { - cc->do_transaction_failed(cpu, physaddr, addr, size, access_type, - mmu_idx, attrs, response, retaddr); - } -} -#endif - -#endif /* NEED_CPU_H */ - -/** - * cpu_set_pc: - * @cpu: The CPU to set the program counter for. - * @addr: Program counter value. - * - * Sets the program counter for a CPU. - */ -static inline void cpu_set_pc(CPUState *cpu, vaddr addr) -{ - CPUClass *cc = CPU_GET_CLASS(cpu); - - cc->set_pc(cpu, addr); -} - -/** - * cpu_reset_interrupt: - * @cpu: The CPU to clear the interrupt on. - * @mask: The interrupt mask to clear. - * - * Resets interrupts on the vCPU @cpu. - */ -void cpu_reset_interrupt(CPUState *cpu, int mask); - -/** - * cpu_exit: - * @cpu: The CPU to exit. - * - * Requests the CPU @cpu to exit execution. - */ -void cpu_exit(CPUState *cpu); - -/** - * cpu_resume: - * @cpu: The CPU to resume. - * - * Resumes CPU, i.e. puts CPU into runnable state. - */ -void cpu_resume(CPUState *cpu); - -/** - * cpu_remove: - * @cpu: The CPU to remove. - * - * Requests the CPU to be removed. - */ -void cpu_remove(CPUState *cpu); - - /** - * cpu_remove_sync: - * @cpu: The CPU to remove. - * - * Requests the CPU to be removed and waits till it is removed. - */ -void cpu_remove_sync(CPUState *cpu); - -/** - * process_queued_cpu_work() - process all items on CPU work queue - * @cpu: The CPU which work queue to process. - */ -void process_queued_cpu_work(CPUState *cpu); - -/** - * cpu_exec_start: - * @cpu: The CPU for the current thread. - * - * Record that a CPU has started execution and can be interrupted with - * cpu_exit. - */ -void cpu_exec_start(CPUState *cpu); - -/** - * cpu_exec_end: - * @cpu: The CPU for the current thread. - * - * Record that a CPU has stopped execution and exclusive sections - * can be executed without interrupting it. - */ -void cpu_exec_end(CPUState *cpu); - -/** - * start_exclusive: - * - * Wait for a concurrent exclusive section to end, and then start - * a section of work that is run while other CPUs are not running - * between cpu_exec_start and cpu_exec_end. CPUs that are running - * cpu_exec are exited immediately. CPUs that call cpu_exec_start - * during the exclusive section go to sleep until this CPU calls - * end_exclusive. - */ -void start_exclusive(void); - -/** - * end_exclusive: - * - * Concludes an exclusive execution section started by start_exclusive. - */ -void end_exclusive(void); - -/** - * qemu_init_vcpu: - * @cpu: The vCPU to initialize. - * - * Initializes a vCPU. - */ -void qemu_init_vcpu(CPUState *cpu); - -#define SSTEP_ENABLE 0x1 /* Enable simulated HW single stepping */ -#define SSTEP_NOIRQ 0x2 /* Do not use IRQ while single stepping */ -#define SSTEP_NOTIMER 0x4 /* Do not Timers while single stepping */ - -/** - * cpu_single_step: - * @cpu: CPU to the flags for. - * @enabled: Flags to enable. - * - * Enables or disables single-stepping for @cpu. - */ -void cpu_single_step(CPUState *cpu, int enabled); - -/* Breakpoint/watchpoint flags */ -#define BP_MEM_READ 0x01 -#define BP_MEM_WRITE 0x02 -#define BP_MEM_ACCESS (BP_MEM_READ | BP_MEM_WRITE) -#define BP_STOP_BEFORE_ACCESS 0x04 -/* 0x08 currently unused */ -#define BP_GDB 0x10 -#define BP_CPU 0x20 -#define BP_ANY (BP_GDB | BP_CPU) -#define BP_WATCHPOINT_HIT_READ 0x40 -#define BP_WATCHPOINT_HIT_WRITE 0x80 -#define BP_WATCHPOINT_HIT (BP_WATCHPOINT_HIT_READ | BP_WATCHPOINT_HIT_WRITE) - -int cpu_breakpoint_insert(CPUState *cpu, vaddr pc, int flags, - CPUBreakpoint **breakpoint); -int cpu_breakpoint_remove(CPUState *cpu, vaddr pc, int flags); -void cpu_breakpoint_remove_by_ref(CPUState *cpu, CPUBreakpoint *breakpoint); -void cpu_breakpoint_remove_all(CPUState *cpu, int mask); - -/* Return true if PC matches an installed breakpoint. */ -static inline bool cpu_breakpoint_test(CPUState *cpu, vaddr pc, int mask) -{ - CPUBreakpoint *bp; - - if (unlikely(!QTAILQ_EMPTY(&cpu->breakpoints))) { - QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) { - if (bp->pc == pc && (bp->flags & mask)) { - return true; - } - } - } - return false; -} - -int cpu_watchpoint_insert(CPUState *cpu, vaddr addr, vaddr len, - int flags, CPUWatchpoint **watchpoint); -int cpu_watchpoint_remove(CPUState *cpu, vaddr addr, - vaddr len, int flags); -void cpu_watchpoint_remove_by_ref(CPUState *cpu, CPUWatchpoint *watchpoint); -void cpu_watchpoint_remove_all(CPUState *cpu, int mask); - -/** - * cpu_get_address_space: - * @cpu: CPU to get address space from - * @asidx: index identifying which address space to get - * - * Return the requested address space of this CPU. @asidx - * specifies which address space to read. - */ -AddressSpace *cpu_get_address_space(CPUState *cpu, int asidx); - -void QEMU_NORETURN cpu_abort(CPUState *cpu, const char *fmt, ...) - GCC_FMT_ATTR(2, 3); -extern Property cpu_common_props[]; -void cpu_exec_initfn(CPUState *cpu); -void cpu_exec_realizefn(CPUState *cpu, Error **errp); -void cpu_exec_unrealizefn(CPUState *cpu); - -/** - * target_words_bigendian: - * Returns true if the (default) endianness of the target is big endian, - * false otherwise. Note that in target-specific code, you can use - * TARGET_WORDS_BIGENDIAN directly instead. On the other hand, common - * code should normally never need to know about the endianness of the - * target, so please do *not* use this function unless you know very well - * what you are doing! - */ -bool target_words_bigendian(void); - -#ifdef NEED_CPU_H - -#ifdef CONFIG_SOFTMMU -extern const VMStateDescription vmstate_cpu_common; -#else -#define vmstate_cpu_common vmstate_dummy -#endif - -#define VMSTATE_CPU() { \ - .name = "parent_obj", \ - .size = sizeof(CPUState), \ - .vmsd = &vmstate_cpu_common, \ - .flags = VMS_STRUCT, \ - .offset = 0, \ -} - -#endif /* NEED_CPU_H */ - -#define UNASSIGNED_CPU_INDEX -1 -#define UNASSIGNED_CLUSTER_INDEX -1 - -#endif |