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Peter Maydell 49010633f0
target/arm: Add armv7m_nvic_set_pending_derived() 
In order to support derived exceptions (exceptions generated in
the course of trying to take an exception), we need to be able
to handle prioritizing whether to take the original exception
or the derived exception.

We do this by introducing a new function
armv7m_nvic_set_pending_derived() which the exception-taking code in
helper.c will call when a derived exception occurs. Derived
exceptions are dealt with mostly like normal pending exceptions, so
we share the implementation with the armv7m_nvic_set_pending()
function.

Note that the way we structure this is significantly different
from the v8M Arm ARM pseudocode: that does all the prioritization
logic in the DerivedLateArrival() function, whereas we choose to
let the existing "identify highest priority exception" logic
do the prioritization for us. The effect is the same, though.

Backports part of commit 5ede82b8ccb652382c106d53f656ed67997d76e8 from qemu
2018-03-07 08:10:01 -05:00
..
accel tcg: Merge opcode arguments into TCGOp 2018-03-05 04:45:20 -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 mips: replace cpu_mips_init() with cpu_generic_init() 2018-03-05 00:49:10 -05:00
include accel/tcg: add size paremeter in tlb_fill() 2018-03-06 10:56:34 -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 qom: introduce type_register_static_array() 2018-03-05 03:49:50 -05:00
scripts qapi: ensure stable sort ordering when checking QAPI entities 2018-03-06 11:30:31 -05:00
target target/arm: Add armv7m_nvic_set_pending_derived() 2018-03-07 08:10:01 -05:00
tcg tcg/aarch64: Add vector operations 2018-03-07 08:07:58 -05:00
util sparc: Make sure we mmap at SHMLBA alignment 2018-03-05 14:09:58 -05:00
aarch64.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
aarch64eb.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
armeb.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
atomic_template.h tcg: Record code_gen_buffer address for user-only memory helpers 2018-03-05 13:48:27 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure tcg: Add generic vector expanders 2018-03-06 13:42:52 -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 exec-all: extract tb->tc_* into a separate struct tc_tb 2018-03-05 02:57:22 -05:00
cpus.c cpu: refactor cpu_address_space_init() 2018-03-05 14:39:25 -05:00
cputlb.c accel/tcg: add size paremeter in tlb_fill() 2018-03-06 10:56:34 -05:00
exec.c cpu: suffix cpu address spaces with cpu index 2018-03-05 14:41:25 -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 tcg/i386: Add vector operations 2018-03-07 08:07:40 -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 tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
Makefile qapi: force a UTF-8 locale for running Python 2018-03-06 11:32:48 -05:00
Makefile.objs tcg: Add atomic helpers 2018-02-27 15:57:47 -05:00
Makefile.target tcg: Add generic vector expanders 2018-03-06 13:42:52 -05:00
memory.c memory: remove unused memory_region_set_global_locking() 2018-03-05 14:14:43 -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 tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
mips64.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
mips64el.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
mipsel.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
powerpc.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -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 build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
softmmu_template.h accel/tcg: add size paremeter in tlb_fill() 2018-03-06 10:56:34 -05:00
sparc.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
sparc64.h tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00
tcg-runtime-gvec.c tcg: Add generic vector helpers with a scalar operand 2018-03-06 16:10:09 -05:00
tcg-runtime.c exec-all: extract tb->tc_* into a separate struct tc_tb 2018-03-05 02:57:22 -05:00
translate-all.c translate-all: Zero out the TCGContext instance 2018-03-05 15:40:51 -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 tcg/i386: Add vector operations 2018-03-07 08:07:40 -05:00