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memory: remove unnecessary masking of MemoryRegion ram_addr 

mr->ram_block->offset is already aligned to both host and target size
(see qemu_ram_alloc_internal).  Remove further masking as it is
unnecessary.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-03-01 10:44:50 +01:00
parent 5b5660adf1
commit e4e697940d
3 changed files with 10 additions and 19 deletions
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21
exec.c
View File

@ -1046,8 +1046,7 @@ hwaddr memory_region_section_get_iotlb(CPUState *cpu,
if (memory_region_is_ram(section->mr)) {
/* Normal RAM. */
iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
+ xlat;
iotlb = memory_region_get_ram_addr(section->mr) + xlat;
if (!section->readonly) {
iotlb |= PHYS_SECTION_NOTDIRTY;
} else {
@ -3079,9 +3078,7 @@ static inline uint32_t address_space_ldl_internal(AddressSpace *as, hwaddr addr,
} else {
/* RAM case */
ptr = qemu_get_ram_ptr(mr->ram_block,
(memory_region_get_ram_addr(mr)
& TARGET_PAGE_MASK)
+ addr1);
memory_region_get_ram_addr(mr) + addr1);
switch (endian) {
case DEVICE_LITTLE_ENDIAN:
val = ldl_le_p(ptr);
@ -3175,9 +3172,7 @@ static inline uint64_t address_space_ldq_internal(AddressSpace *as, hwaddr addr,
} else {
/* RAM case */
ptr = qemu_get_ram_ptr(mr->ram_block,
(memory_region_get_ram_addr(mr)
& TARGET_PAGE_MASK)
+ addr1);
memory_region_get_ram_addr(mr) + addr1);
switch (endian) {
case DEVICE_LITTLE_ENDIAN:
val = ldq_le_p(ptr);
@ -3291,9 +3286,7 @@ static inline uint32_t address_space_lduw_internal(AddressSpace *as,
} else {
/* RAM case */
ptr = qemu_get_ram_ptr(mr->ram_block,
(memory_region_get_ram_addr(mr)
& TARGET_PAGE_MASK)
+ addr1);
memory_region_get_ram_addr(mr) + addr1);
switch (endian) {
case DEVICE_LITTLE_ENDIAN:
val = lduw_le_p(ptr);
@ -3375,7 +3368,7 @@ 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;
addr1 += memory_region_get_ram_addr(mr);
ptr = qemu_get_ram_ptr(mr->ram_block, addr1);
stl_p(ptr, val);
@ -3430,7 +3423,7 @@ static inline void address_space_stl_internal(AddressSpace *as,
r = memory_region_dispatch_write(mr, addr1, val, 4, attrs);
} else {
/* RAM case */
addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK;
addr1 += memory_region_get_ram_addr(mr);
ptr = qemu_get_ram_ptr(mr->ram_block, addr1);
switch (endian) {
case DEVICE_LITTLE_ENDIAN:
@ -3540,7 +3533,7 @@ static inline void address_space_stw_internal(AddressSpace *as,
r = memory_region_dispatch_write(mr, addr1, val, 2, attrs);
} else {
/* RAM case */
addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK;
addr1 += memory_region_get_ram_addr(mr);
ptr = qemu_get_ram_ptr(mr->ram_block, addr1);
switch (endian) {
case DEVICE_LITTLE_ENDIAN:

5
memory.c
View File

@ -1628,7 +1628,7 @@ int memory_region_get_fd(MemoryRegion *mr)
assert(mr->ram_block);
return qemu_get_ram_fd(memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK);
return qemu_get_ram_fd(memory_region_get_ram_addr(mr));
}
void *memory_region_get_ram_ptr(MemoryRegion *mr)
@ -1642,8 +1642,7 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
mr = mr->alias;
}
assert(mr->ram_block);
ptr = qemu_get_ram_ptr(mr->ram_block,
memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK);
ptr = qemu_get_ram_ptr(mr->ram_block, memory_region_get_ram_addr(mr));
rcu_read_unlock();
return ptr + offset;

3
translate-all.c
View File

@ -1555,8 +1555,7 @@ void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr)
rcu_read_unlock();
return;
}
ram_addr = (memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK)
+ addr;
ram_addr = memory_region_get_ram_addr(mr) + addr;
tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0);
rcu_read_unlock();
}