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Diffstat (limited to 'include/exec/cpu-all.h')
| -rw-r--r-- | include/exec/cpu-all.h | 533 |
1 files changed, 533 insertions, 0 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h new file mode 100644 index 0000000000..439e88deb4 --- /dev/null +++ b/include/exec/cpu-all.h @@ -0,0 +1,533 @@ +/* + * defines common to all virtual CPUs + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ +#ifndef CPU_ALL_H +#define CPU_ALL_H + +#include "qemu-common.h" +#include "qemu/tls.h" +#include "exec/cpu-common.h" +#include "qemu/thread.h" + +/* some important defines: + * + * WORDS_ALIGNED : if defined, the host cpu can only make word aligned + * memory accesses. + * + * HOST_WORDS_BIGENDIAN : if defined, the host cpu is big endian and + * otherwise little endian. + * + * (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet)) + * + * TARGET_WORDS_BIGENDIAN : same for target cpu + */ + +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) +#define BSWAP_NEEDED +#endif + +#ifdef BSWAP_NEEDED + +static inline uint16_t tswap16(uint16_t s) +{ + return bswap16(s); +} + +static inline uint32_t tswap32(uint32_t s) +{ + return bswap32(s); +} + +static inline uint64_t tswap64(uint64_t s) +{ + return bswap64(s); +} + +static inline void tswap16s(uint16_t *s) +{ + *s = bswap16(*s); +} + +static inline void tswap32s(uint32_t *s) +{ + *s = bswap32(*s); +} + +static inline void tswap64s(uint64_t *s) +{ + *s = bswap64(*s); +} + +#else + +static inline uint16_t tswap16(uint16_t s) +{ + return s; +} + +static inline uint32_t tswap32(uint32_t s) +{ + return s; +} + +static inline uint64_t tswap64(uint64_t s) +{ + return s; +} + +static inline void tswap16s(uint16_t *s) +{ +} + +static inline void tswap32s(uint32_t *s) +{ +} + +static inline void tswap64s(uint64_t *s) +{ +} + +#endif + +#if TARGET_LONG_SIZE == 4 +#define tswapl(s) tswap32(s) +#define tswapls(s) tswap32s((uint32_t *)(s)) +#define bswaptls(s) bswap32s(s) +#else +#define tswapl(s) tswap64(s) +#define tswapls(s) tswap64s((uint64_t *)(s)) +#define bswaptls(s) bswap64s(s) +#endif + +/* CPU memory access without any memory or io remapping */ + +/* + * the generic syntax for the memory accesses is: + * + * load: ld{type}{sign}{size}{endian}_{access_type}(ptr) + * + * store: st{type}{size}{endian}_{access_type}(ptr, val) + * + * type is: + * (empty): integer access + * f : float access + * + * sign is: + * (empty): for floats or 32 bit size + * u : unsigned + * s : signed + * + * size is: + * b: 8 bits + * w: 16 bits + * l: 32 bits + * q: 64 bits + * + * endian is: + * (empty): target cpu endianness or 8 bit access + * r : reversed target cpu endianness (not implemented yet) + * be : big endian (not implemented yet) + * le : little endian (not implemented yet) + * + * access_type is: + * raw : host memory access + * user : user mode access using soft MMU + * kernel : kernel mode access using soft MMU + */ + +/* target-endianness CPU memory access functions */ +#if defined(TARGET_WORDS_BIGENDIAN) +#define lduw_p(p) lduw_be_p(p) +#define ldsw_p(p) ldsw_be_p(p) +#define ldl_p(p) ldl_be_p(p) +#define ldq_p(p) ldq_be_p(p) +#define ldfl_p(p) ldfl_be_p(p) +#define ldfq_p(p) ldfq_be_p(p) +#define stw_p(p, v) stw_be_p(p, v) +#define stl_p(p, v) stl_be_p(p, v) +#define stq_p(p, v) stq_be_p(p, v) +#define stfl_p(p, v) stfl_be_p(p, v) +#define stfq_p(p, v) stfq_be_p(p, v) +#else +#define lduw_p(p) lduw_le_p(p) +#define ldsw_p(p) ldsw_le_p(p) +#define ldl_p(p) ldl_le_p(p) +#define ldq_p(p) ldq_le_p(p) +#define ldfl_p(p) ldfl_le_p(p) +#define ldfq_p(p) ldfq_le_p(p) +#define stw_p(p, v) stw_le_p(p, v) +#define stl_p(p, v) stl_le_p(p, v) +#define stq_p(p, v) stq_le_p(p, v) +#define stfl_p(p, v) stfl_le_p(p, v) +#define stfq_p(p, v) stfq_le_p(p, v) +#endif + +/* MMU memory access macros */ + +#if defined(CONFIG_USER_ONLY) +#include <assert.h> +#include "exec/user/abitypes.h" + +/* On some host systems the guest address space is reserved on the host. + * This allows the guest address space to be offset to a convenient location. + */ +#if defined(CONFIG_USE_GUEST_BASE) +extern unsigned long guest_base; +extern int have_guest_base; +extern unsigned long reserved_va; +#define GUEST_BASE guest_base +#define RESERVED_VA reserved_va +#else +#define GUEST_BASE 0ul +#define RESERVED_VA 0ul +#endif + +/* All direct uses of g2h and h2g need to go away for usermode softmmu. */ +#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + GUEST_BASE)) + +#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS +#define h2g_valid(x) 1 +#else +#define h2g_valid(x) ({ \ + unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \ + (__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \ + (!RESERVED_VA || (__guest < RESERVED_VA)); \ +}) +#endif + +#define h2g(x) ({ \ + unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \ + /* Check if given address fits target address space */ \ + assert(h2g_valid(x)); \ + (abi_ulong)__ret; \ +}) + +#define saddr(x) g2h(x) +#define laddr(x) g2h(x) + +#else /* !CONFIG_USER_ONLY */ +/* NOTE: we use double casts if pointers and target_ulong have + different sizes */ +#define saddr(x) (uint8_t *)(intptr_t)(x) +#define laddr(x) (uint8_t *)(intptr_t)(x) +#endif + +#define ldub_raw(p) ldub_p(laddr((p))) +#define ldsb_raw(p) ldsb_p(laddr((p))) +#define lduw_raw(p) lduw_p(laddr((p))) +#define ldsw_raw(p) ldsw_p(laddr((p))) +#define ldl_raw(p) ldl_p(laddr((p))) +#define ldq_raw(p) ldq_p(laddr((p))) +#define ldfl_raw(p) ldfl_p(laddr((p))) +#define ldfq_raw(p) ldfq_p(laddr((p))) +#define stb_raw(p, v) stb_p(saddr((p)), v) +#define stw_raw(p, v) stw_p(saddr((p)), v) +#define stl_raw(p, v) stl_p(saddr((p)), v) +#define stq_raw(p, v) stq_p(saddr((p)), v) +#define stfl_raw(p, v) stfl_p(saddr((p)), v) +#define stfq_raw(p, v) stfq_p(saddr((p)), v) + + +#if defined(CONFIG_USER_ONLY) + +/* if user mode, no other memory access functions */ +#define ldub(p) ldub_raw(p) +#define ldsb(p) ldsb_raw(p) +#define lduw(p) lduw_raw(p) +#define ldsw(p) ldsw_raw(p) +#define ldl(p) ldl_raw(p) +#define ldq(p) ldq_raw(p) +#define ldfl(p) ldfl_raw(p) +#define ldfq(p) ldfq_raw(p) +#define stb(p, v) stb_raw(p, v) +#define stw(p, v) stw_raw(p, v) +#define stl(p, v) stl_raw(p, v) +#define stq(p, v) stq_raw(p, v) +#define stfl(p, v) stfl_raw(p, v) +#define stfq(p, v) stfq_raw(p, v) + +#define cpu_ldub_code(env1, p) ldub_raw(p) +#define cpu_ldsb_code(env1, p) ldsb_raw(p) +#define cpu_lduw_code(env1, p) lduw_raw(p) +#define cpu_ldsw_code(env1, p) ldsw_raw(p) +#define cpu_ldl_code(env1, p) ldl_raw(p) +#define cpu_ldq_code(env1, p) ldq_raw(p) + +#define cpu_ldub_data(env, addr) ldub_raw(addr) +#define cpu_lduw_data(env, addr) lduw_raw(addr) +#define cpu_ldsw_data(env, addr) ldsw_raw(addr) +#define cpu_ldl_data(env, addr) ldl_raw(addr) +#define cpu_ldq_data(env, addr) ldq_raw(addr) + +#define cpu_stb_data(env, addr, data) stb_raw(addr, data) +#define cpu_stw_data(env, addr, data) stw_raw(addr, data) +#define cpu_stl_data(env, addr, data) stl_raw(addr, data) +#define cpu_stq_data(env, addr, data) stq_raw(addr, data) + +#define cpu_ldub_kernel(env, addr) ldub_raw(addr) +#define cpu_lduw_kernel(env, addr) lduw_raw(addr) +#define cpu_ldsw_kernel(env, addr) ldsw_raw(addr) +#define cpu_ldl_kernel(env, addr) ldl_raw(addr) +#define cpu_ldq_kernel(env, addr) ldq_raw(addr) + +#define cpu_stb_kernel(env, addr, data) stb_raw(addr, data) +#define cpu_stw_kernel(env, addr, data) stw_raw(addr, data) +#define cpu_stl_kernel(env, addr, data) stl_raw(addr, data) +#define cpu_stq_kernel(env, addr, data) stq_raw(addr, data) + +#define ldub_kernel(p) ldub_raw(p) +#define ldsb_kernel(p) ldsb_raw(p) +#define lduw_kernel(p) lduw_raw(p) +#define ldsw_kernel(p) ldsw_raw(p) +#define ldl_kernel(p) ldl_raw(p) +#define ldq_kernel(p) ldq_raw(p) +#define ldfl_kernel(p) ldfl_raw(p) +#define ldfq_kernel(p) ldfq_raw(p) +#define stb_kernel(p, v) stb_raw(p, v) +#define stw_kernel(p, v) stw_raw(p, v) +#define stl_kernel(p, v) stl_raw(p, v) +#define stq_kernel(p, v) stq_raw(p, v) +#define stfl_kernel(p, v) stfl_raw(p, v) +#define stfq_kernel(p, vt) stfq_raw(p, v) + +#define cpu_ldub_data(env, addr) ldub_raw(addr) +#define cpu_lduw_data(env, addr) lduw_raw(addr) +#define cpu_ldl_data(env, addr) ldl_raw(addr) + +#define cpu_stb_data(env, addr, data) stb_raw(addr, data) +#define cpu_stw_data(env, addr, data) stw_raw(addr, data) +#define cpu_stl_data(env, addr, data) stl_raw(addr, data) +#endif /* defined(CONFIG_USER_ONLY) */ + +/* page related stuff */ + +#define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) +#define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1) +#define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK) + +/* ??? These should be the larger of uintptr_t and target_ulong. */ +extern uintptr_t qemu_real_host_page_size; +extern uintptr_t qemu_host_page_size; +extern uintptr_t qemu_host_page_mask; + +#define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask) + +/* same as PROT_xxx */ +#define PAGE_READ 0x0001 +#define PAGE_WRITE 0x0002 +#define PAGE_EXEC 0x0004 +#define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC) +#define PAGE_VALID 0x0008 +/* original state of the write flag (used when tracking self-modifying + code */ +#define PAGE_WRITE_ORG 0x0010 +#if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY) +/* FIXME: Code that sets/uses this is broken and needs to go away. */ +#define PAGE_RESERVED 0x0020 +#endif + +#if defined(CONFIG_USER_ONLY) +void page_dump(FILE *f); + +typedef int (*walk_memory_regions_fn)(void *, abi_ulong, + abi_ulong, unsigned long); +int walk_memory_regions(void *, walk_memory_regions_fn); + +int page_get_flags(target_ulong address); +void page_set_flags(target_ulong start, target_ulong end, int flags); +int page_check_range(target_ulong start, target_ulong len, int flags); +#endif + +CPUArchState *cpu_copy(CPUArchState *env); +CPUArchState *qemu_get_cpu(int cpu); + +#define CPU_DUMP_CODE 0x00010000 +#define CPU_DUMP_FPU 0x00020000 /* dump FPU register state, not just integer */ +/* dump info about TCG QEMU's condition code optimization state */ +#define CPU_DUMP_CCOP 0x00040000 + +void cpu_dump_state(CPUArchState *env, FILE *f, fprintf_function cpu_fprintf, + int flags); +void cpu_dump_statistics(CPUArchState *env, FILE *f, fprintf_function cpu_fprintf, + int flags); + +void QEMU_NORETURN cpu_abort(CPUArchState *env, const char *fmt, ...) + GCC_FMT_ATTR(2, 3); +extern CPUArchState *first_cpu; +DECLARE_TLS(CPUArchState *,cpu_single_env); +#define cpu_single_env tls_var(cpu_single_env) + +/* Flags for use in ENV->INTERRUPT_PENDING. + + The numbers assigned here are non-sequential in order to preserve + binary compatibility with the vmstate dump. Bit 0 (0x0001) was + previously used for CPU_INTERRUPT_EXIT, and is cleared when loading + the vmstate dump. */ + +/* External hardware interrupt pending. This is typically used for + interrupts from devices. */ +#define CPU_INTERRUPT_HARD 0x0002 + +/* Exit the current TB. This is typically used when some system-level device + makes some change to the memory mapping. E.g. the a20 line change. */ +#define CPU_INTERRUPT_EXITTB 0x0004 + +/* Halt the CPU. */ +#define CPU_INTERRUPT_HALT 0x0020 + +/* Debug event pending. */ +#define CPU_INTERRUPT_DEBUG 0x0080 + +/* Several target-specific external hardware interrupts. Each target/cpu.h + should define proper names based on these defines. */ +#define CPU_INTERRUPT_TGT_EXT_0 0x0008 +#define CPU_INTERRUPT_TGT_EXT_1 0x0010 +#define CPU_INTERRUPT_TGT_EXT_2 0x0040 +#define CPU_INTERRUPT_TGT_EXT_3 0x0200 +#define CPU_INTERRUPT_TGT_EXT_4 0x1000 + +/* Several target-specific internal interrupts. These differ from the + preceding target-specific interrupts in that they are intended to + originate from within the cpu itself, typically in response to some + instruction being executed. These, therefore, are not masked while + single-stepping within the debugger. */ +#define CPU_INTERRUPT_TGT_INT_0 0x0100 +#define CPU_INTERRUPT_TGT_INT_1 0x0400 +#define CPU_INTERRUPT_TGT_INT_2 0x0800 +#define CPU_INTERRUPT_TGT_INT_3 0x2000 + +/* First unused bit: 0x4000. */ + +/* The set of all bits that should be masked when single-stepping. */ +#define CPU_INTERRUPT_SSTEP_MASK \ + (CPU_INTERRUPT_HARD \ + | CPU_INTERRUPT_TGT_EXT_0 \ + | CPU_INTERRUPT_TGT_EXT_1 \ + | CPU_INTERRUPT_TGT_EXT_2 \ + | CPU_INTERRUPT_TGT_EXT_3 \ + | CPU_INTERRUPT_TGT_EXT_4) + +#ifndef CONFIG_USER_ONLY +typedef void (*CPUInterruptHandler)(CPUArchState *, int); + +extern CPUInterruptHandler cpu_interrupt_handler; + +static inline void cpu_interrupt(CPUArchState *s, int mask) +{ + cpu_interrupt_handler(s, mask); +} +#else /* USER_ONLY */ +void cpu_interrupt(CPUArchState *env, int mask); +#endif /* USER_ONLY */ + +void cpu_reset_interrupt(CPUArchState *env, int mask); + +void cpu_exit(CPUArchState *s); + +/* 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 +#define BP_WATCHPOINT_HIT 0x08 +#define BP_GDB 0x10 +#define BP_CPU 0x20 + +int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, + CPUBreakpoint **breakpoint); +int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags); +void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint); +void cpu_breakpoint_remove_all(CPUArchState *env, int mask); +int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, + int flags, CPUWatchpoint **watchpoint); +int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, + target_ulong len, int flags); +void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint); +void cpu_watchpoint_remove_all(CPUArchState *env, int mask); + +#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 */ + +void cpu_single_step(CPUArchState *env, int enabled); + +#if !defined(CONFIG_USER_ONLY) + +/* Return the physical page corresponding to a virtual one. Use it + only for debugging because no protection checks are done. Return -1 + if no page found. */ +hwaddr cpu_get_phys_page_debug(CPUArchState *env, target_ulong addr); + +/* memory API */ + +extern int phys_ram_fd; +extern ram_addr_t ram_size; + +/* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */ +#define RAM_PREALLOC_MASK (1 << 0) + +typedef struct RAMBlock { + struct MemoryRegion *mr; + uint8_t *host; + ram_addr_t offset; + ram_addr_t length; + uint32_t flags; + char idstr[256]; + /* Reads can take either the iothread or the ramlist lock. + * Writes must take both locks. + */ + QTAILQ_ENTRY(RAMBlock) next; +#if defined(__linux__) && !defined(TARGET_S390X) + int fd; +#endif +} RAMBlock; + +typedef struct RAMList { + QemuMutex mutex; + /* Protected by the iothread lock. */ + uint8_t *phys_dirty; + RAMBlock *mru_block; + /* Protected by the ramlist lock. */ + QTAILQ_HEAD(, RAMBlock) blocks; + uint32_t version; +} RAMList; +extern RAMList ram_list; + +extern const char *mem_path; +extern int mem_prealloc; + +/* Flags stored in the low bits of the TLB virtual address. These are + defined so that fast path ram access is all zeros. */ +/* Zero if TLB entry is valid. */ +#define TLB_INVALID_MASK (1 << 3) +/* Set if TLB entry references a clean RAM page. The iotlb entry will + contain the page physical address. */ +#define TLB_NOTDIRTY (1 << 4) +/* Set if TLB entry is an IO callback. */ +#define TLB_MMIO (1 << 5) + +void dump_exec_info(FILE *f, fprintf_function cpu_fprintf); +ram_addr_t last_ram_offset(void); +void qemu_mutex_lock_ramlist(void); +void qemu_mutex_unlock_ramlist(void); +#endif /* !CONFIG_USER_ONLY */ + +int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr, + uint8_t *buf, int len, int is_write); + +#endif /* CPU_ALL_H */ |