diff options
| -rw-r--r-- | accel/tcg/cputlb.c | 42 | ||||
| -rw-r--r-- | exec.c | 17 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.c | 10 | ||||
| -rw-r--r-- | memory.c | 33 | ||||
| -rw-r--r-- | memory_ldst.inc.c | 63 |
5 files changed, 23 insertions, 142 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 5c12eef292..3c9e634d99 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -1200,38 +1200,6 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, cpu_loop_exit_atomic(env_cpu(env), retaddr); } -#ifdef TARGET_WORDS_BIGENDIAN -#define NEED_BE_BSWAP 0 -#define NEED_LE_BSWAP 1 -#else -#define NEED_BE_BSWAP 1 -#define NEED_LE_BSWAP 0 -#endif - -/* - * Byte Swap Helper - * - * This should all dead code away depending on the build host and - * access type. - */ - -static inline uint64_t handle_bswap(uint64_t val, MemOp op) -{ - if ((memop_big_endian(op) && NEED_BE_BSWAP) || - (!memop_big_endian(op) && NEED_LE_BSWAP)) { - switch (op & MO_SIZE) { - case MO_8: return val; - case MO_16: return bswap16(val); - case MO_32: return bswap32(val); - case MO_64: return bswap64(val); - default: - g_assert_not_reached(); - } - } else { - return val; - } -} - /* * Load Helpers * @@ -1306,10 +1274,8 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, } } - /* TODO: Merge bswap into io_readx -> memory_region_dispatch_read. */ - res = io_readx(env, &env_tlb(env)->d[mmu_idx].iotlb[index], - mmu_idx, addr, retaddr, access_type, op); - return handle_bswap(res, op); + return io_readx(env, &env_tlb(env)->d[mmu_idx].iotlb[index], + mmu_idx, addr, retaddr, access_type, op); } /* Handle slow unaligned access (it spans two pages or IO). */ @@ -1552,10 +1518,8 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, } } - /* TODO: Merge bswap into io_writex -> memory_region_dispatch_write. */ io_writex(env, &env_tlb(env)->d[mmu_idx].iotlb[index], mmu_idx, - handle_bswap(val, op), - addr, retaddr, op); + val, addr, retaddr, op); return; } @@ -3363,14 +3363,9 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr, l = memory_access_size(mr, l, addr1); /* XXX: could force current_cpu to NULL to avoid potential bugs */ - val = ldn_p(buf, l); - /* - * TODO: Merge bswap from ldn_p into memory_region_dispatch_write - * by using ldn_he_p and dropping MO_TE to get a host-endian value. - */ + val = ldn_he_p(buf, l); result |= memory_region_dispatch_write(mr, addr1, val, - size_memop(l) | MO_TE, - attrs); + size_memop(l), attrs); } else { /* RAM case */ ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false); @@ -3431,13 +3426,9 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr, /* I/O case */ release_lock |= prepare_mmio_access(mr); l = memory_access_size(mr, l, addr1); - /* - * TODO: Merge bswap from stn_p into memory_region_dispatch_read - * by using stn_he_p and dropping MO_TE to get a host-endian value. - */ result |= memory_region_dispatch_read(mr, addr1, &val, - size_memop(l) | MO_TE, attrs); - stn_p(buf, l, val); + size_memop(l), attrs); + stn_he_p(buf, l, val); } else { /* RAM case */ ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false); diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index d89a85bb33..ffb03728f9 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -544,16 +544,15 @@ void virtio_address_space_write(VirtIOPCIProxy *proxy, hwaddr addr, val = pci_get_byte(buf); break; case 2: - val = cpu_to_le16(pci_get_word(buf)); + val = pci_get_word(buf); break; case 4: - val = cpu_to_le32(pci_get_long(buf)); + val = pci_get_long(buf); break; default: /* As length is under guest control, handle illegal values. */ return; } - /* TODO: Merge bswap from cpu_to_leXX into memory_region_dispatch_write. */ memory_region_dispatch_write(mr, addr, val, size_memop(len) | MO_LE, MEMTXATTRS_UNSPECIFIED); } @@ -578,7 +577,6 @@ virtio_address_space_read(VirtIOPCIProxy *proxy, hwaddr addr, /* Make sure caller aligned buf properly */ assert(!(((uintptr_t)buf) & (len - 1))); - /* TODO: Merge bswap from leXX_to_cpu into memory_region_dispatch_read. */ memory_region_dispatch_read(mr, addr, &val, size_memop(len) | MO_LE, MEMTXATTRS_UNSPECIFIED); switch (len) { @@ -586,10 +584,10 @@ virtio_address_space_read(VirtIOPCIProxy *proxy, hwaddr addr, pci_set_byte(buf, val); break; case 2: - pci_set_word(buf, le16_to_cpu(val)); + pci_set_word(buf, val); break; case 4: - pci_set_long(buf, le32_to_cpu(val)); + pci_set_long(buf, val); break; default: /* As length is under guest control, handle illegal values. */ @@ -351,32 +351,23 @@ static bool memory_region_big_endian(MemoryRegion *mr) #endif } -static bool memory_region_wrong_endianness(MemoryRegion *mr) +static void adjust_endianness(MemoryRegion *mr, uint64_t *data, MemOp op) { -#ifdef TARGET_WORDS_BIGENDIAN - return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; -#else - return mr->ops->endianness == DEVICE_BIG_ENDIAN; -#endif -} - -static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) -{ - if (memory_region_wrong_endianness(mr)) { - switch (size) { - case 1: + if ((op & MO_BSWAP) != devend_memop(mr->ops->endianness)) { + switch (op & MO_SIZE) { + case MO_8: break; - case 2: + case MO_16: *data = bswap16(*data); break; - case 4: + case MO_32: *data = bswap32(*data); break; - case 8: + case MO_64: *data = bswap64(*data); break; default: - abort(); + g_assert_not_reached(); } } } @@ -1458,7 +1449,7 @@ MemTxResult memory_region_dispatch_read(MemoryRegion *mr, } r = memory_region_dispatch_read1(mr, addr, pval, size, attrs); - adjust_endianness(mr, pval, size); + adjust_endianness(mr, pval, op); return r; } @@ -1501,7 +1492,7 @@ MemTxResult memory_region_dispatch_write(MemoryRegion *mr, return MEMTX_DECODE_ERROR; } - adjust_endianness(mr, &data, size); + adjust_endianness(mr, &data, op); if ((!kvm_eventfds_enabled()) && memory_region_dispatch_write_eventfds(mr, addr, data, size, attrs)) { @@ -2350,7 +2341,7 @@ void memory_region_add_eventfd(MemoryRegion *mr, } if (size) { - adjust_endianness(mr, &mrfd.data, size); + adjust_endianness(mr, &mrfd.data, size_memop(size) | MO_TE); } memory_region_transaction_begin(); for (i = 0; i < mr->ioeventfd_nb; ++i) { @@ -2385,7 +2376,7 @@ void memory_region_del_eventfd(MemoryRegion *mr, unsigned i; if (size) { - adjust_endianness(mr, &mrfd.data, size); + adjust_endianness(mr, &mrfd.data, size_memop(size) | MO_TE); } memory_region_transaction_begin(); for (i = 0; i < mr->ioeventfd_nb; ++i) { diff --git a/memory_ldst.inc.c b/memory_ldst.inc.c index 809a7e8389..c54aee4a95 100644 --- a/memory_ldst.inc.c +++ b/memory_ldst.inc.c @@ -38,18 +38,8 @@ static inline uint32_t glue(address_space_ldl_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - /* TODO: Merge bswap32 into memory_region_dispatch_read. */ r = memory_region_dispatch_read(mr, addr1, &val, MO_32 | devend_memop(endian), attrs); -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap32(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap32(val); - } -#endif } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); @@ -116,18 +106,8 @@ static inline uint64_t glue(address_space_ldq_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - /* TODO: Merge bswap64 into memory_region_dispatch_read. */ r = memory_region_dispatch_read(mr, addr1, &val, MO_64 | devend_memop(endian), attrs); -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap64(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap64(val); - } -#endif } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); @@ -228,18 +208,8 @@ static inline uint32_t glue(address_space_lduw_internal, SUFFIX)(ARG1_DECL, release_lock |= prepare_mmio_access(mr); /* I/O case */ - /* TODO: Merge bswap16 into memory_region_dispatch_read. */ r = memory_region_dispatch_read(mr, addr1, &val, MO_16 | devend_memop(endian), attrs); -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap16(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap16(val); - } -#endif } else { /* RAM case */ ptr = qemu_map_ram_ptr(mr->ram_block, addr1); @@ -342,17 +312,6 @@ static inline void glue(address_space_stl_internal, SUFFIX)(ARG1_DECL, mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 4 || !memory_access_is_direct(mr, true)) { release_lock |= prepare_mmio_access(mr); - -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap32(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap32(val); - } -#endif - /* TODO: Merge bswap32 into memory_region_dispatch_write. */ r = memory_region_dispatch_write(mr, addr1, val, MO_32 | devend_memop(endian), attrs); } else { @@ -449,17 +408,6 @@ static inline void glue(address_space_stw_internal, SUFFIX)(ARG1_DECL, mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 2 || !memory_access_is_direct(mr, true)) { release_lock |= prepare_mmio_access(mr); - -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap16(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap16(val); - } -#endif - /* TODO: Merge bswap16 into memory_region_dispatch_write. */ r = memory_region_dispatch_write(mr, addr1, val, MO_16 | devend_memop(endian), attrs); } else { @@ -524,17 +472,6 @@ static void glue(address_space_stq_internal, SUFFIX)(ARG1_DECL, mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 8 || !memory_access_is_direct(mr, true)) { release_lock |= prepare_mmio_access(mr); - -#if defined(TARGET_WORDS_BIGENDIAN) - if (endian == DEVICE_LITTLE_ENDIAN) { - val = bswap64(val); - } -#else - if (endian == DEVICE_BIG_ENDIAN) { - val = bswap64(val); - } -#endif - /* TODO: Merge bswap64 into memory_region_dispatch_write. */ r = memory_region_dispatch_write(mr, addr1, val, MO_64 | devend_memop(endian), attrs); } else { |