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Richard Henderson 07f30382c0 cputlb: Handle watchpoints via TLB_WATCHPOINT 
The raising of exceptions from check_watchpoint, buried inside
of the I/O subsystem, is fundamentally broken. We do not have
the helper return address with which we can unwind guest state.

Replace PHYS_SECTION_WATCH and io_mem_watch with TLB_WATCHPOINT.
Move the call to cpu_check_watchpoint into the cputlb helpers
where we do have the helper return address.

This allows watchpoints on RAM to bypass the full i/o access path.

Backports commit 50b107c5d617eaf93301cef20221312e7a986701 from qemu
2020-01-14 06:58:33 -05:00
..
accel cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
crypto crypto: Clean up includes 2018-02-19 00:47:40 -05:00
default-configs target/riscv: Initial introduction of the RISC-V target 2019-03-08 21:46:10 -05:00
docs docs/devel/memory.txt: Document _with_attrs accessors 2018-10-04 04:46:26 -04:00
fpu fpu: rename softfloat-specialize.h -> .inc.c 2019-11-18 21:12:30 -05:00
hw i386: Update new x86_apicid parsing rules with die_offset support 2019-08-08 18:22:03 -04:00
include cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
qapi qapi: Rewrite string-input-visitor's integer and list parsing 2018-12-18 04:57:25 -05:00
qobject qstring: Move qstring_from_substr()'s @end one to the right 2018-08-02 21:24:19 -04:00
qom cpu: Move icount_decr to CPUNegativeOffsetState 2019-06-13 15:34:28 -04:00
scripts decodetree: Suppress redundant declaration warnings 2019-11-18 21:21:30 -05:00
target target/sparc: sun4u Invert Endian TTE bit 2020-01-07 19:21:30 -05:00
tcg tcg: TCGMemOp is now accelerator independent MemOp 2019-11-28 03:01:12 -05:00
util util/cacheinfo: Use uint64_t on LLP64 model to satisfy Windows ARM64 2019-05-09 17:43:27 -04:00
aarch64.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
aarch64eb.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
armeb.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
CODING_STYLE.rst docs: split the CODING_STYLE doc into distinct groups 2019-11-28 02:54:44 -05:00
configure configure: remove AUTOCONF_HOST 2019-11-18 22:19:47 -05:00
COPYING
COPYING.LIB
cpus.c Include qapi/error.h exactly where needed 2018-03-07 12:26:38 -05:00
exec.c cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c target/arm/translate: Synchronize with Qemu 2019-04-27 10:13:01 -04:00
header_gen.py cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE
m68k.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
Makefile Makefile: Rename targets for make recursion 2019-08-08 17:26:49 -04:00
Makefile.objs qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
Makefile.target configure: Remove old -fno-gcse workaround for GCC 4.6.x and 4.7.[012] 2018-12-18 03:52:36 -05:00
memory.c memory: Single byte swap along the I/O path 2020-01-07 19:12:04 -05:00
memory_ldst.inc.c memory: Single byte swap along the I/O path 2020-01-07 19:12:04 -05:00
memory_mapping.c include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
mips64.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
mips64el.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
mipsel.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
powerpc.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
riscv32.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
riscv64.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
sparc64.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00
unicorn_common.h unicorn_common: Fix unicorn memory functions failing 2018-09-03 10:40:14 -04:00
VERSION Open 5.0 development tree 2020-01-07 17:50:51 -05:00
vl.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
vl.h
x86_64.h cputlb: Handle watchpoints via TLB_WATCHPOINT 2020-01-14 06:58:33 -05:00