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Peter Maydell 14cb6925f3
target/arm: Make FAULTMASK register banked for v8M 
Make the FAULTMASK register banked if v8M security extensions are enabled.

Note that we do not yet implement the functionality of the new
AIRCR.PRIS bit (which allows the effect of the NS copy of FAULTMASK to
be restricted).

This patch includes the code to determine for v8M which copy
of FAULTMASK should be updated on exception exit; further
changes will be required to the exception exit code in general
to support v8M, so this is just a small piece of that.

The v8M ARM ARM introduces a notation where individual paragraphs
are labelled with R (for rule) or I (for information) followed
by a random group of subscript letters. In comments where we want
to refer to a particular part of the manual we use this convention,
which should be more stable across document revisions than using
section or page numbers.

Backports commit 42a6686b2f6199d086a58edd7731faeb2dbe7c14 from qemu
2018-03-04 20:58:38 -05:00
..
accel target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
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: clarify memory region lifecycle 2018-02-12 15:11:21 -05:00
fpu softfloat: define floatx80_round() 2018-03-03 20:57:27 -05:00
hw i386: Remove AMD feature flag aliases from Opteron models 2018-03-01 23:49:04 -05:00
include tcg: Add generic translation framework 2018-03-04 14:31:16 -05:00
qapi qapi: add explicit null to string input and output visitors 2018-03-03 20:32:50 -05:00
qobject qnum: add uint type 2018-03-03 18:37:56 -05:00
qom cpu: cpu_by_arch_id() helper 2018-03-04 12:16:39 -05:00
scripts scripts: use build_ prefix for string not piped through cgen() 2018-03-03 22:11:28 -05:00
target target/arm: Make FAULTMASK register banked for v8M 2018-03-04 20:58:38 -05:00
tcg tcg/s390: Use slbgr for setcond le and leu 2018-03-04 13:48:42 -05:00
util util/cacheinfo: Add missing include for ppc linux 2018-03-03 23:05:44 -05:00
aarch64.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
aarch64eb.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
armeb.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
atomic_template.h tcg: Add atomic128 helpers 2018-02-27 21:43:48 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure build: add -Wexpansion-to-defined 2018-03-03 22:12:31 -05:00
COPYING import 2015-08-21 15:04:50 +08:00
COPYING.LIB import 2015-08-21 15:04:50 +08:00
cpu-exec-common.c tcg: Add EXCP_ATOMIC 2018-02-27 11:57:58 -05:00
cpu-exec.c tcg: Introduce goto_ptr opcode and tcg_gen_lookup_and_goto_ptr 2018-03-02 21:05:18 -05:00
cpus.c tcg: handle EXCP_ATOMIC exception for system emulation 2018-03-02 09:56:43 -05:00
cputlb.c cputlb: Support generating CPU exceptions on memory transaction failures 2018-03-04 13:14:50 -05:00
exec.c memory: Open code FlatView rendering 2018-03-04 02:06:48 -05:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c qapi: Improve qobject input visitor error reporting 2018-03-02 12:05:53 -05:00
HACKING import 2015-08-21 15:04:50 +08:00
header_gen.py target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
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 target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
Makefile Makefile: Add a FORCE target 2018-02-24 17:03:51 -05:00
Makefile.objs tcg: Add atomic helpers 2018-02-27 15:57:47 -05:00
Makefile.target tcg: Add generic translation framework 2018-03-04 14:31:16 -05:00
memory.c memory: Move FlatView allocation to a helper 2018-03-04 02:08:37 -05:00
memory_ldst.inc.c exec: introduce memory_ldst.inc.c 2018-03-01 09:59:34 -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 target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
mips64.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
mips64el.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
mipsel.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
powerpc.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
qapi-schema.json qapi: Update scripts to commit 01b2ffcedd94ad7b42bc870e4c6936c87ad03429 2018-03-03 18:32:12 -05:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
rules.mak rules.mak: Don't extract libs from .mo-libs in link command 2018-02-26 02:08:03 -05:00
softmmu_template.h cputlb: Support generating CPU exceptions on memory transaction failures 2018-03-04 13:14:50 -05:00
sparc.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
sparc64.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00
tcg-runtime.c tcg: Increase hit rate of lookup_tb_ptr 2018-03-03 17:16:23 -05:00
translate-all.c tcg: Pass generic CPUState to gen_intermediate_code() 2018-03-03 23:34:18 -05:00
translate-all.h translate-all.c: Compute L1 page table properties at runtime 2018-02-26 11:46:58 -05:00
translate-common.c exec: Clean up includes 2018-02-19 00:49:55 -05:00
unicorn_common.h qom/cpu: Add MemoryRegion property 2018-02-18 21:54:50 -05:00
VERSION import 2015-08-21 15:04:50 +08:00
vl.c util: add cacheinfo 2018-03-03 16:58:28 -05:00
vl.h import 2015-08-21 15:04:50 +08:00
x86_64.h target/arm: [tcg] Port to generic translation framework 2018-03-04 20:28:06 -05:00