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Peter Maydell 075bac4d57
target/arm: Get IL bit correct for v7 syndrome values 
For the v7 version of the Arm architecture, the IL bit in
syndrome register values where the field is not valid was
defined to be UNK/SBZP. In v8 this is RES1, which is what
QEMU currently implements. Handle the desired v7 behaviour
by squashing the IL bit for the affected cases:
* EC == EC_UNCATEGORIZED
* prefetch aborts
* data aborts where ISV is 0

(The fourth case listed in the v8 Arm ARM DDI 0487C.a in
section G7.2.70, "illegal state exception", can't happen
on a v7 CPU.)

This deals with a corner case noted in a comment.

Backports commit 2ed08180db096ea5e44573529b85e09b1ed10b08 from qemu
2018-11-10 09:29:13 -05:00
..
accel cputlb: read CPUTLBEntry.addr_write atomically 2018-10-23 15:37:43 -04:00
crypto crypto: Clean up includes 2018-02-19 00:47:40 -05:00
default-configs arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
docs docs/devel/memory.txt: Document _with_attrs accessors 2018-10-04 04:46:26 -04:00
fpu softfloat: Specialize udiv_qrnnd for ppc64 2018-10-08 14:15:15 -04:00
hw hw/mips/mips_r4k: Fix initialization of MIPS target CPUs 2018-09-03 17:40:08 -04:00
include cputlb: read CPUTLBEntry.addr_write atomically 2018-10-23 15:37:43 -04:00
qapi qobject: Modify qobject_ref() to return obj 2018-05-04 10:24:10 -04:00
qobject qstring: Move qstring_from_substr()'s @end one to the right 2018-08-02 21:24:19 -04:00
qom tcg: access cpu->icount_decr.u16.high with atomics 2018-10-23 14:36:46 -04:00
scripts qapi: Emit a blank line before dummy declaration 2018-09-25 21:12:16 -04:00
target target/arm: Get IL bit correct for v7 syndrome values 2018-11-10 09:29:13 -05:00
tcg tcg: Split CONFIG_ATOMIC128 2018-10-23 15:17:39 -04:00
util Haiku support patches (#989) 2018-09-03 07:55:51 -04:00
aarch64.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
aarch64eb.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
armeb.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure tcg: Split CONFIG_ATOMIC128 2018-10-23 15:17:39 -04:00
COPYING import 2015-08-21 15:04:50 +08:00
COPYING.LIB import 2015-08-21 15:04:50 +08:00
cpus.c Include qapi/error.h exactly where needed 2018-03-07 12:26:38 -05:00
exec.c exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
HACKING HACKING: document preference for g_new instead of g_malloc 2018-05-22 00:30:50 -04:00
header_gen.py exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE import 2015-08-21 15:04:50 +08:00
m68k.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
Makefile Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST" 2018-07-05 17:40:24 -04:00
Makefile.objs qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
Makefile.target tcg: remove softfloat from --disable-tcg builds 2018-06-07 11:49:35 -04:00
memory.c memory: Remove old_mmio accessors 2018-10-04 04:45:30 -04:00
memory_ldst.inc.c exec: Fix MAP_RAM for cached access 2018-07-03 01:11:12 -04:00
memory_mapping.c include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
mips64.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
mips64el.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
mipsel.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
powerpc.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
riscv32.h target/arm: Add v8M stack checks on ADD/SUB/MOV of SP 2018-10-08 14:15:15 -04:00
riscv64.h target/arm: Add v8M stack checks on ADD/SUB/MOV of SP 2018-10-08 14:15:15 -04:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
sparc64.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00
unicorn_common.h unicorn_common: Fix unicorn memory functions failing 2018-09-03 10:40:14 -04:00
VERSION Open 3.1 development tree 2018-08-16 06:33:25 -04:00
vl.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
vl.h import 2015-08-21 15:04:50 +08:00
x86_64.h exec: introduce tlb_init 2018-10-23 14:41:29 -04:00