Ilya Leoshkevich f025692c99 accel/tcg: Clear PAGE_WRITE before translation ...

translate_insn() implementations fetch instruction bytes piecemeal,
which can cause qemu-user to generate inconsistent translations if
another thread modifies them concurrently [1].

Fix by making pages containing translated instruction non-writable
right before loading instruction bytes from them.

[1] https://lists.nongnu.org/archive/html/qemu-devel/2021-08/msg00644.html

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20210805204835.158918-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

2021-09-14 12:00:20 -07:00

..

user

…

address-spaces.h

…

confidential-guest-support.h

confidential guest support: Introduce cgs "ready" flag

2021-02-08 16:57:38 +11:00

cpu_ldst.h

exec: Rename guest_{addr,range}_valid to *_untagged

2021-02-16 11:04:53 +00:00

cpu-all.h

exec: Fix overlap of PAGE_ANON and PAGE_TARGET_1

2021-04-12 11:06:24 +01:00

cpu-common.h

memory: Introduce RAM_NORESERVE and wire it up in qemu_ram_mmap()

2021-06-15 20:27:38 +02:00

cpu-defs.h

exec/cpu-defs: Remove TCG backends dependency

2021-02-05 10:24:14 -10:00

cputlb.h

…

exec-all.h

accel/tcg: Record singlestep_enabled in tb->cflags

2021-07-21 07:47:05 -10:00

gdbstub.h

gdbstub: Remove unused gdb_get_float32() and gdb_get_float64()

2021-02-15 09:38:47 +00:00

gen-icount.h

tcg: Drop gen_io_end()

2021-09-08 11:09:45 +01:00

helper-gen.h

exec: Remove accel/tcg/ from include paths

2021-05-01 11:44:13 -07:00

helper-head.h

tcg: Combine dh_is_64bit and dh_is_signed to dh_typecode

2021-06-19 08:51:11 -07:00

helper-proto.h

exec: Remove accel/tcg/ from include paths

2021-05-01 11:44:13 -07:00

helper-tcg.h

tcg: Combine dh_is_64bit and dh_is_signed to dh_typecode

2021-06-19 08:51:11 -07:00

hwaddr.h

…

ioport.h

…

log.h

tcg: Introduce tcg_splitwx_to_{rx,rw}

2021-01-07 05:09:41 -10:00

memattrs.h

…

memop.h

…

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

…

memory.h

softmmu/physmem: Extend ram_block_discard_(require|disable) by two discard types

2021-07-08 15:54:45 -04:00

page-vary.h

exec: Build page-vary-common.c with -fno-lto

2021-03-23 19:36:47 -06:00

plugin-gen.h

accel/tcg: allow plugin instrumentation to be disable via cflags

2021-02-18 08:19:23 +00:00

poison.h

configure: Poison all current target-specific #defines

2021-05-14 12:32:17 +02:00

ram_addr.h

memory: Introduce RAM_NORESERVE and wire it up in qemu_ram_mmap()

2021-06-15 20:27:38 +02:00

ramblock.h

migration/ram: Handle RAM block resizes during postcopy

2021-05-13 18:21:14 +01:00

ramlist.h

numa: Teach ram block notifiers about resizeable ram blocks

2021-05-13 18:21:13 +01:00

softmmu-semi.h

…

target_page.h

…

translate-all.h

accel/tcg: Clear PAGE_WRITE before translation

2021-09-14 12:00:20 -07:00

translator.h

accel/tcg: Clear PAGE_WRITE before translation

2021-09-14 12:00:20 -07:00