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Markus Armbruster eeef227560
range: Replace internal representation of Range 
Range represents a range as follows. Member @start is the inclusive
lower bound, member @end is the exclusive upper bound. Zero @end is
special: if @start is also zero, the range is empty, else @end is to
be interpreted as 2^64. No other empty ranges may occur.

The range [0,2^64-1] cannot be represented. If you try to create it
with range_set_bounds1(), you get the empty range instead. If you try
to create it with range_set_bounds() or range_extend(), assertions
fail. Before range_set_bounds() existed, the open-coded creation
usually got you the empty range instead. Open deathtrap.

Moreover, the code dealing with the janus-faced @end is too clever by
half.

Dumb this down to a more pedestrian representation: members @lob and
@upb are inclusive lower and upper bounds. The empty range is encoded
as @lob = 1, @upb = 0.

Backports commit 6dd726a2bf1b800289d90a84d5fcb5ce7b78a8e1 from qemu
2018-02-25 00:44:36 -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: Handle snan_bit_is_one == 0 in MIPS pickNaNMulAdd() 2018-02-24 20:40:11 -05:00
hw qemu-common: push cpu.h inclusion out of qemu-common.h 2018-02-24 01:50:56 -05:00
include range: Replace internal representation of Range 2018-02-25 00:44:36 -05:00
qapi range: Eliminate direct Range member access 2018-02-25 00:39:43 -05:00
qobject util: move declarations out of qemu-common.h 2018-02-22 09:25:48 -05:00
qom qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
scripts qapi: Fix crash on missing alternate member of QAPI struct 2018-02-24 23:53:29 -05:00
target-arm softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
target-i386 exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
target-m68k softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
target-mips target-mips: Add FCR31's FS bit definition 2018-02-24 21:32:10 -05:00
target-sparc exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
tcg exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
util range: Replace internal representation of Range 2018-02-25 00:44:36 -05:00
aarch64.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
aarch64eb.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
accel.c accel: make configure_accelerator return void 2018-02-24 00:31:28 -05:00
arm.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
armeb.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure configure: Enable -Werror for MinGW builds, too 2018-02-24 18:56:05 -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 cpu-exec: Rename cpu_resume_from_signal() to cpu_loop_exit_noexc() 2018-02-24 17:25:28 -05:00
cpu-exec.c tb hash: hash phys_pc, pc, and flags with xxhash 2018-02-24 18:00:14 -05:00
cpus.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
cputlb.c memory: split memory_region_from_host from qemu_ram_addr_from_host 2018-02-24 16:06:49 -05:00
exec.c exec: hide mr->ram_addr from qemu_get_ram_ptr users 2018-02-24 16:17:49 -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: Fix memleak in string visitors on int lists 2018-02-25 00:20:34 -05:00
HACKING import 2015-08-21 15:04:50 +08:00
header_gen.py memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -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 memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
Makefile Makefile: Add a FORCE target 2018-02-24 17:03:51 -05:00
Makefile.objs crypto: move crypto objects out of libqemuutil.la 2018-02-17 15:23:50 -05:00
Makefile.target tcg: split tcg_op_defs to -common 2018-02-17 15:23:51 -05:00
memory.c memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -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 memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
mips64.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
mips64el.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
mipsel.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
powerpc.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
qapi-schema.json qapi: Lazy creation of array types 2018-02-19 18:55:35 -05:00
qemu-log.c log: move qemu_log_close/qemu_log_flush from header to log.c 2018-02-22 11:13:17 -05:00
qemu-timer.c all: Clean up includes 2018-02-19 01:34:28 -05:00
rules.mak Makefile: add dependency on scripts/create_config 2018-02-24 17:05:03 -05:00
softmmu_template.h exec.c: Pass MemTxAttrs to iotlb_to_region so it uses the right AS 2018-02-17 23:19:00 -05:00
sparc.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
sparc64.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00
tcg-runtime.c all: Clean up includes 2018-02-19 01:34:28 -05:00
translate-all.c exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
translate-all.h user-exec: Push resume-from-signal code out to handle_cpu_signal() 2018-02-24 17:21:06 -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 hw: explicitly include qemu/log.h 2018-02-24 02:00:45 -05:00
vl.h import 2015-08-21 15:04:50 +08:00
x86_64.h memory: Provide memory_region_init_rom() 2018-02-25 00:28:17 -05:00