diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/cpu-common.h | 2 | ||||
| -rw-r--r-- | include/exec/cputlb.h | 12 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 6 | ||||
| -rw-r--r-- | include/exec/memory-internal.h | 5 | ||||
| -rw-r--r-- | include/exec/memory.h | 58 | ||||
| -rw-r--r-- | include/exec/softmmu_template.h | 36 |
6 files changed, 56 insertions, 63 deletions
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index af5258d414..e061e21093 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -110,9 +110,7 @@ void stq_phys(hwaddr addr, uint64_t val); void cpu_physical_memory_write_rom(hwaddr addr, const uint8_t *buf, int len); -extern struct MemoryRegion io_mem_ram; extern struct MemoryRegion io_mem_rom; -extern struct MemoryRegion io_mem_unassigned; extern struct MemoryRegion io_mem_notdirty; #endif diff --git a/include/exec/cputlb.h b/include/exec/cputlb.h index 733c885a1f..e8216602d0 100644 --- a/include/exec/cputlb.h +++ b/include/exec/cputlb.h @@ -26,8 +26,6 @@ void tlb_unprotect_code_phys(CPUArchState *env, ram_addr_t ram_addr, target_ulong vaddr); void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, uintptr_t start, uintptr_t length); -MemoryRegionSection *phys_page_find(struct AddressSpaceDispatch *d, - hwaddr index); void cpu_tlb_reset_dirty_all(ram_addr_t start1, ram_addr_t length); void tlb_set_dirty(CPUArchState *env, target_ulong vaddr); extern int tlb_flush_count; @@ -35,11 +33,11 @@ extern int tlb_flush_count; /* exec.c */ void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr); hwaddr memory_region_section_get_iotlb(CPUArchState *env, - MemoryRegionSection *section, - target_ulong vaddr, - hwaddr paddr, - int prot, - target_ulong *address); + MemoryRegionSection *section, + target_ulong vaddr, + hwaddr paddr, hwaddr xlat, + int prot, + target_ulong *address); bool memory_region_is_unassigned(MemoryRegion *mr); #endif diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 6362074e9c..17fde25c74 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -367,9 +367,9 @@ bool is_tcg_gen_code(uintptr_t pc_ptr); #if !defined(CONFIG_USER_ONLY) struct MemoryRegion *iotlb_to_region(hwaddr index); -uint64_t io_mem_read(struct MemoryRegion *mr, hwaddr addr, - unsigned size); -void io_mem_write(struct MemoryRegion *mr, hwaddr addr, +bool io_mem_read(struct MemoryRegion *mr, hwaddr addr, + uint64_t *pvalue, unsigned size); +bool io_mem_write(struct MemoryRegion *mr, hwaddr addr, uint64_t value, unsigned size); void tlb_fill(CPUArchState *env1, target_ulong addr, int is_write, int mmu_idx, diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index 8d15f90417..799c02a63c 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -43,6 +43,11 @@ struct AddressSpaceDispatch { void address_space_init_dispatch(AddressSpace *as); void address_space_destroy_dispatch(AddressSpace *as); +extern const MemoryRegionOps unassigned_mem_ops; + +bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr, + unsigned size, bool is_write); + ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, MemoryRegion *mr); ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr); diff --git a/include/exec/memory.h b/include/exec/memory.h index fdf55feea1..d53a6a1b88 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -752,23 +752,6 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr, hwaddr addr, uint64_t size); /** - * memory_region_section_addr: get offset within MemoryRegionSection - * - * Returns offset within MemoryRegionSection - * - * @section: the memory region section being queried - * @addr: address in address space - */ -static inline hwaddr -memory_region_section_addr(MemoryRegionSection *section, - hwaddr addr) -{ - addr -= section->offset_within_address_space; - addr += section->offset_within_region; - return addr; -} - -/** * address_space_sync_dirty_bitmap: synchronize the dirty log for all memory * * Synchronizes the dirty page log for an entire address space. @@ -842,32 +825,67 @@ void address_space_destroy(AddressSpace *as); /** * address_space_rw: read from or write to an address space. * + * Return true if the operation hit any unassigned memory. + * * @as: #AddressSpace to be accessed * @addr: address within that address space * @buf: buffer with the data transferred * @is_write: indicates the transfer direction */ -void address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf, +bool address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf, int len, bool is_write); /** * address_space_write: write to address space. * + * Return true if the operation hit any unassigned memory. + * * @as: #AddressSpace to be accessed * @addr: address within that address space * @buf: buffer with the data transferred */ -void address_space_write(AddressSpace *as, hwaddr addr, +bool address_space_write(AddressSpace *as, hwaddr addr, const uint8_t *buf, int len); /** * address_space_read: read from an address space. * + * Return true if the operation hit any unassigned memory. + * * @as: #AddressSpace to be accessed * @addr: address within that address space * @buf: buffer with the data transferred */ -void address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len); +bool address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len); + +/* address_space_translate: translate an address range into an address space + * into a MemoryRegionSection and an address range into that section + * + * @as: #AddressSpace to be accessed + * @addr: address within that address space + * @xlat: pointer to address within the returned memory region section's + * #MemoryRegion. + * @len: pointer to length + * @is_write: indicates the transfer direction + */ +MemoryRegionSection *address_space_translate(AddressSpace *as, hwaddr addr, + hwaddr *xlat, hwaddr *len, + bool is_write); + +/* address_space_access_valid: check for validity of accessing an address + * space range + * + * Check whether memory is assigned to the given address space range. + * + * For now, addr and len should be aligned to a page size. This limitation + * will be lifted in the future. + * + * @as: #AddressSpace to be accessed + * @addr: address within that address space + * @len: length of the area to be checked + * @is_write: indicates the transfer direction + */ +bool address_space_access_valid(AddressSpace *as, hwaddr addr, int len, bool is_write); /* address_space_map: map a physical memory region into a host virtual address * diff --git a/include/exec/softmmu_template.h b/include/exec/softmmu_template.h index b219191abd..8584902cbe 100644 --- a/include/exec/softmmu_template.h +++ b/include/exec/softmmu_template.h @@ -63,31 +63,18 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env, target_ulong addr, uintptr_t retaddr) { - DATA_TYPE res; + uint64_t val; MemoryRegion *mr = iotlb_to_region(physaddr); physaddr = (physaddr & TARGET_PAGE_MASK) + addr; env->mem_io_pc = retaddr; - if (mr != &io_mem_ram && mr != &io_mem_rom - && mr != &io_mem_unassigned - && mr != &io_mem_notdirty - && !can_do_io(env)) { + if (mr != &io_mem_rom && mr != &io_mem_notdirty && !can_do_io(env)) { cpu_io_recompile(env, retaddr); } env->mem_io_vaddr = addr; -#if SHIFT <= 2 - res = io_mem_read(mr, physaddr, 1 << SHIFT); -#else -#ifdef TARGET_WORDS_BIGENDIAN - res = io_mem_read(mr, physaddr, 4) << 32; - res |= io_mem_read(mr, physaddr + 4, 4); -#else - res = io_mem_read(mr, physaddr, 4); - res |= io_mem_read(mr, physaddr + 4, 4) << 32; -#endif -#endif /* SHIFT > 2 */ - return res; + io_mem_read(mr, physaddr, &val, 1 << SHIFT); + return val; } /* handle all cases except unaligned access which span two pages */ @@ -218,26 +205,13 @@ static inline void glue(io_write, SUFFIX)(CPUArchState *env, MemoryRegion *mr = iotlb_to_region(physaddr); physaddr = (physaddr & TARGET_PAGE_MASK) + addr; - if (mr != &io_mem_ram && mr != &io_mem_rom - && mr != &io_mem_unassigned - && mr != &io_mem_notdirty - && !can_do_io(env)) { + if (mr != &io_mem_rom && mr != &io_mem_notdirty && !can_do_io(env)) { cpu_io_recompile(env, retaddr); } env->mem_io_vaddr = addr; env->mem_io_pc = retaddr; -#if SHIFT <= 2 io_mem_write(mr, physaddr, val, 1 << SHIFT); -#else -#ifdef TARGET_WORDS_BIGENDIAN - io_mem_write(mr, physaddr, (val >> 32), 4); - io_mem_write(mr, physaddr + 4, (uint32_t)val, 4); -#else - io_mem_write(mr, physaddr, (uint32_t)val, 4); - io_mem_write(mr, physaddr + 4, val >> 32, 4); -#endif -#endif /* SHIFT > 2 */ } void glue(glue(helper_st, SUFFIX), MMUSUFFIX)(CPUArchState *env, |