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6a2c23ddeb
qemu/accel/tcg
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Richard Henderson 6a2c23ddeb accel/tcg: Avoid reading too much in load_atom_{2,4} 
When load_atom_extract_al16_or_al8 is inexpensive, we want to use
it early, in order to avoid the overhead of required_atomicity.
However, we must not read past the end of the page.

If there are more than 8 bytes remaining, then both the "aligned 16"
and "aligned 8" paths align down so that the read has at least
16 bytes remaining on the page.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-10 10:59:24 -07:00
..
atomic_common.c.inc tcg: Use HAVE_CMPXCHG128 instead of CONFIG_CMPXCHG128 2023-07-15 08:02:49 +01:00
atomic_template.h accel/tcg: Remove prot argument to atomic_mmu_lookup 2023-05-23 18:54:55 -07:00
cpu-exec-common.c accel/tcg: Add cpu_in_serial_context 2023-05-11 09:53:41 +01:00
cpu-exec.c accel/tcg: Zero-pad PC in TCG CPU exec trace lines 2023-07-17 11:05:08 +01:00
cputlb.c accel/tcg: Call save_iotlb_data from io_readx as well 2023-08-06 10:10:07 -07:00
debuginfo.c accel/tcg: Add debuginfo support 2023-01-16 10:14:12 -10:00
debuginfo.h coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h 2023-01-20 07:21:46 +01:00
internal.h accel/tcg: Always lock pages before translation 2023-07-15 08:02:33 +01:00
ldst_atomicity.c.inc accel/tcg: Avoid reading too much in load_atom_{2,4} 2023-08-10 10:59:24 -07:00
ldst_common.c.inc accel/tcg: Unify cpu_{ld,st}*_{be,le}_mmu 2023-05-23 18:54:28 -07:00
meson.build meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY 2023-06-20 10:01:30 +02:00
monitor.c accel/tcg: remove CONFIG_PROFILER 2023-06-26 17:33:00 +02:00
perf.c accel/tcg: Unmap perf_marker 2023-06-05 12:06:49 -07:00
perf.h tcg: add perfmap and jitdump 2023-01-16 10:14:12 -10:00
plugin-gen.c tcg: Remove target-specific headers from tcg.[ch] 2023-06-05 12:04:29 -07:00
plugin-helpers.h tcg: exclude non-memory effecting helpers from instrumentation 2023-02-02 11:48:20 +00:00
tb-context.h tcg: Move tb_phys_invalidate_count to tb_ctx 2021-07-09 09:38:33 -07:00
tb-hash.h accel/tcg: Widen pc to vaddr in CPUJumpCache 2023-06-26 17:32:59 +02:00
tb-jmp-cache.h accel/tcg: Widen pc to vaddr in CPUJumpCache 2023-06-26 17:32:59 +02:00
tb-maint.c accel/tcg: Always lock pages before translation 2023-07-15 08:02:33 +01:00
tcg-accel-ops-icount.c accel/tcg/tcg-accel-ops-rr: ensure fairness with icount 2023-05-11 09:53:41 +01:00
tcg-accel-ops-icount.h accel/tcg/tcg-accel-ops-rr: ensure fairness with icount 2023-05-11 09:53:41 +01:00
tcg-accel-ops-mttcg.c accel: Remove unused hThread variable on TCG/WHPX 2023-06-28 13:55:35 +02:00
tcg-accel-ops-mttcg.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
tcg-accel-ops-rr.c accel: Remove unused hThread variable on TCG/WHPX 2023-06-28 13:55:35 +02:00
tcg-accel-ops-rr.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
tcg-accel-ops.c accel/tcg: remove CONFIG_PROFILER 2023-06-26 17:33:00 +02:00
tcg-accel-ops.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
tcg-all.c accel/tcg: Remove check_tcg_memory_orders_compatible 2023-06-26 17:33:00 +02:00
tcg-runtime-gvec.c tcg: Split helper-proto.h 2023-06-05 12:04:29 -07:00
tcg-runtime.c tcg: Split helper-proto.h 2023-06-05 12:04:29 -07:00
tcg-runtime.h tcg: Use HAVE_CMPXCHG128 instead of CONFIG_CMPXCHG128 2023-07-15 08:02:49 +01:00
trace-events accel/tcg: Remove trace events from trace-root.h 2022-12-20 17:11:12 -08:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
translate-all.c accel/tcg: Clear tcg_ctx->gen_tb on buffer overflow 2023-07-31 12:19:13 -07:00
translator.c accel/tcg: Always lock pages before translation 2023-07-15 08:02:33 +01:00
user-exec-stub.c replay: Extract core API to 'exec/replay-core.h' 2023-02-27 22:29:01 +01:00
user-exec.c accel/tcg: Fix type of 'last' for pageflags_{find,next} 2023-07-24 09:48:49 +01:00