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37031fefc7
qemu/include/exec
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Richard Henderson 37031fefc7 include/exec/memop: Add MO_ATOM_* 
This field may be used to describe the precise atomicity requirements
of the guest, which may then be used to constrain the methods by which
it may be emulated by the host.

For instance, the AArch64 LDP (32-bit) instruction changes semantics
with ARMv8.4 LSE2, from

  MO_64 | MO_ATOM_IFALIGN_PAIR
  (64-bits, single-copy atomic only on 4 byte units,
   nonatomic if not aligned by 4),

to

  MO_64 | MO_ATOM_WITHIN16
  (64-bits, single-copy atomic within a 16 byte block)

The former may be implemented with two 4 byte loads, or a single 8 byte
load if that happens to be efficient on the host.  The latter may not
be implemented with two 4 byte loads and may also require a helper when
misaligned.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-16 15:21:38 -07:00
..
user nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
address-spaces.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
confidential-guest-support.h confidential guest support: Introduce cgs "ready" flag 2021-02-08 16:57:38 +11:00
cpu_ldst.h accel/tcg: Introduce tlb_read_idx 2023-05-11 09:53:41 +01:00
cpu-all.h include/exec: Provide the tswap() functions for target independent code, too 2023-04-20 11:25:32 +02:00
cpu-common.h cpu: expose qemu_cpu_list_lock for lock-guard use 2023-05-11 09:53:41 +01:00
cpu-defs.h accel/tcg: Introduce tlb_read_idx 2023-05-11 09:53:41 +01:00
cputlb.h overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
exec-all.h accel/tcg: Pass last not end to tb_invalidate_phys_range 2023-03-28 15:23:10 -07:00
gdbstub.h gdbstub: move syscall handling to new file 2023-03-07 20:44:08 +00:00
gen-icount.h include/exec/gen-icount: Drop tcg_temp_free in gen_tb_start 2023-03-05 13:44:08 -08:00
helper-gen.h tracing: excise the tcg related from tracetool 2022-02-09 12:08:42 +00:00
helper-head.h exec/helper-head: Include missing "fpu/softfloat-types.h" header 2023-02-28 10:32:31 -10:00
helper-proto.h tcg: Mark tcg helpers noinline to avoid an issue with LTO 2023-01-23 14:39:48 -10:00
helper-tcg.h tracing: remove the trace-tcg includes from the build 2022-02-09 12:08:42 +00:00
hwaddr.h bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
ioport.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
log.h include/exec/log: Do not reference QemuLogFile directly 2022-04-20 10:51:11 -07:00
memattrs.h softmmu/physmem: Introduce MemTxAttrs::memory field and MEMTX_ACCESS_ERROR 2022-03-21 10:10:58 +01:00
memop.h include/exec/memop: Add MO_ATOM_* 2023-05-16 15:21:38 -07:00
memopidx.h Normalize header guard symbol definition 2022-05-11 16:50:26 +02:00
memory_ldst_cached.h.inc exec/memory_ldst_cached: Use correct type size 2021-05-26 08:35:51 -07:00
memory_ldst_phys.h.inc exec/memory_ldst_phys: Use correct type sizes 2021-05-26 08:35:51 -07:00
memory_ldst.h.inc exec/memory_ldst: Use correct type sizes 2021-05-26 08:35:51 -07:00
memory-internal.h exec/memory: Expose memory_region_access_valid() 2023-01-09 13:50:13 +01:00
memory.h memory: prevent dma-reentracy issues 2023-04-28 11:20:01 +02:00
page-vary.h include: move target page bits declaration to page-vary.h 2022-04-06 14:31:43 +02:00
plugin-gen.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
poison.h tcg: Remove TARGET_ALIGNED_ONLY 2023-05-11 09:53:41 +01:00
ram_addr.h migration: Use non-atomic ops for clear log bitmap 2022-11-21 11:58:10 +01:00
ramblock.h migration: Use non-atomic ops for clear log bitmap 2022-11-21 11:58:10 +01:00
ramlist.h qapi: introduce x-query-ramblock QMP command 2021-11-02 15:55:14 +00:00
replay-core.h replay: Extract core API to 'exec/replay-core.h' 2023-02-27 22:29:01 +01:00
target_long.h include: split target_long definition from cpu-defs 2023-03-07 20:44:09 +00:00
target_page.h softmmu: Create qemu_target_pages_to_MiB() 2023-05-15 10:33:03 +02:00
tb-flush.h includes: move tb_flush into its own header 2023-03-07 17:06:33 +00:00
translate-all.h accel/tcg: Move remainder of page locking to tb-maint.c 2022-12-20 17:11:12 -08:00
translator.h accel/tcg: Remove translator_loop_temp_check 2023-03-05 13:44:07 -08:00
tswap.h include/exec: Provide the tswap() functions for target independent code, too 2023-04-20 11:25:32 +02:00