diff options
| -rw-r--r-- | exec.c | 46 | ||||
| -rw-r--r-- | include/exec/memory.h | 4 | ||||
| -rw-r--r-- | memory.c | 2 |
3 files changed, 31 insertions, 21 deletions
@@ -1868,9 +1868,13 @@ void *qemu_get_ram_block_host_ptr(ram_addr_t addr) * * Called within RCU critical section. */ -void *qemu_get_ram_ptr(ram_addr_t addr) +void *qemu_get_ram_ptr(RAMBlock *ram_block, ram_addr_t addr) { - RAMBlock *block = qemu_get_ram_block(addr); + RAMBlock *block = ram_block; + + if (block == NULL) { + block = qemu_get_ram_block(addr); + } if (xen_enabled() && block->host == NULL) { /* We need to check if the requested address is in the RAM @@ -1891,15 +1895,18 @@ void *qemu_get_ram_ptr(ram_addr_t addr) * * Called within RCU critical section. */ -static void *qemu_ram_ptr_length(ram_addr_t addr, hwaddr *size) +static void *qemu_ram_ptr_length(RAMBlock *ram_block, ram_addr_t addr, + hwaddr *size) { - RAMBlock *block; + RAMBlock *block = ram_block; ram_addr_t offset_inside_block; if (*size == 0) { return NULL; } - block = qemu_get_ram_block(addr); + if (block == NULL) { + block = qemu_get_ram_block(addr); + } offset_inside_block = addr - block->offset; *size = MIN(*size, block->max_length - offset_inside_block); @@ -2027,13 +2034,13 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr, } switch (size) { case 1: - stb_p(qemu_get_ram_ptr(ram_addr), val); + stb_p(qemu_get_ram_ptr(NULL, ram_addr), val); break; case 2: - stw_p(qemu_get_ram_ptr(ram_addr), val); + stw_p(qemu_get_ram_ptr(NULL, ram_addr), val); break; case 4: - stl_p(qemu_get_ram_ptr(ram_addr), val); + stl_p(qemu_get_ram_ptr(NULL, ram_addr), val); break; default: abort(); @@ -2609,7 +2616,7 @@ static MemTxResult address_space_write_continue(AddressSpace *as, hwaddr addr, } else { addr1 += memory_region_get_ram_addr(mr); /* RAM case */ - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); memcpy(ptr, buf, l); invalidate_and_set_dirty(mr, addr1, l); } @@ -2700,7 +2707,7 @@ MemTxResult address_space_read_continue(AddressSpace *as, hwaddr addr, } } else { /* RAM case */ - ptr = qemu_get_ram_ptr(mr->ram_addr + addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, mr->ram_addr + addr1); memcpy(buf, ptr, l); } @@ -2785,7 +2792,7 @@ static inline void cpu_physical_memory_write_rom_internal(AddressSpace *as, } else { addr1 += memory_region_get_ram_addr(mr); /* ROM/RAM case */ - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); switch (type) { case WRITE_DATA: memcpy(ptr, buf, l); @@ -2997,7 +3004,7 @@ void *address_space_map(AddressSpace *as, memory_region_ref(mr); *plen = done; - ptr = qemu_ram_ptr_length(raddr + base, plen); + ptr = qemu_ram_ptr_length(mr->ram_block, raddr + base, plen); rcu_read_unlock(); return ptr; @@ -3081,7 +3088,8 @@ static inline uint32_t address_space_ldl_internal(AddressSpace *as, hwaddr addr, #endif } else { /* RAM case */ - ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(mr) + ptr = qemu_get_ram_ptr(mr->ram_block, + (memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK) + addr1); switch (endian) { @@ -3176,7 +3184,8 @@ static inline uint64_t address_space_ldq_internal(AddressSpace *as, hwaddr addr, #endif } else { /* RAM case */ - ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(mr) + ptr = qemu_get_ram_ptr(mr->ram_block, + (memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK) + addr1); switch (endian) { @@ -3291,7 +3300,8 @@ static inline uint32_t address_space_lduw_internal(AddressSpace *as, #endif } else { /* RAM case */ - ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(mr) + ptr = qemu_get_ram_ptr(mr->ram_block, + (memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK) + addr1); switch (endian) { @@ -3376,7 +3386,7 @@ void address_space_stl_notdirty(AddressSpace *as, hwaddr addr, uint32_t val, r = memory_region_dispatch_write(mr, addr1, val, 4, attrs); } else { addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK; - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); stl_p(ptr, val); dirty_log_mask = memory_region_get_dirty_log_mask(mr); @@ -3431,7 +3441,7 @@ static inline void address_space_stl_internal(AddressSpace *as, } else { /* RAM case */ addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK; - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); switch (endian) { case DEVICE_LITTLE_ENDIAN: stl_le_p(ptr, val); @@ -3541,7 +3551,7 @@ static inline void address_space_stw_internal(AddressSpace *as, } else { /* RAM case */ addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK; - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); switch (endian) { case DEVICE_LITTLE_ENDIAN: stw_le_p(ptr, val); diff --git a/include/exec/memory.h b/include/exec/memory.h index 683be46cd0..34f21f1aed 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1391,7 +1391,7 @@ MemTxResult address_space_read_continue(AddressSpace *as, hwaddr addr, MemoryRegion *mr); MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, uint8_t *buf, int len); -void *qemu_get_ram_ptr(ram_addr_t addr); +void *qemu_get_ram_ptr(RAMBlock *ram_block, ram_addr_t addr); static inline bool memory_access_is_direct(MemoryRegion *mr, bool is_write) { @@ -1432,7 +1432,7 @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, mr = address_space_translate(as, addr, &addr1, &l, false); if (len == l && memory_access_is_direct(mr, false)) { addr1 += memory_region_get_ram_addr(mr); - ptr = qemu_get_ram_ptr(addr1); + ptr = qemu_get_ram_ptr(mr->ram_block, addr1); memcpy(buf, ptr, len); } else { result = address_space_read_continue(as, addr, attrs, buf, len, @@ -1570,7 +1570,7 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr) mr = mr->alias; } assert(mr->ram_addr != RAM_ADDR_INVALID); - ptr = qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK); + ptr = qemu_get_ram_ptr(mr->ram_block, mr->ram_addr & TARGET_PAGE_MASK); rcu_read_unlock(); return ptr + offset; |