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unicorn/qemu
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Peter Maydell cb879422e9
exec.c: Don't accidentally sign-extend 4-byte loads in subpage_read() 
In subpage_read() we perform a load of the data into a local buffer
which we then access using ldub_p(), lduw_p(), ldl_p() or ldq_p()
depending on its size, storing the result into the uint64_t *data.
Since ldl_p() returns an 'int', this means that for the 4-byte
case we will sign-extend the data, whereas for 1 and 2 byte
reads we zero-extend it.

This ought not to matter since the caller will likely ignore values in
the high bytes of the data, but add a cast so that we're consistent.

Backports commit 22672c6075a16d1998e37686f02ed4bd2fb30f78 from qemu
2018-06-15 12:18:40 -04:00
..
accel cpu-defs.h: Document CPUIOTLBEntry 'addr' field 2018-06-15 12:07:39 -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: clarify memory region lifecycle 2018-02-12 15:11:21 -05:00
fpu fpu/softfloat: Define floatN_silence_nan in terms of parts_silence_nan 2018-05-20 00:13:42 -04:00
hw Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
include bswap: Add new stn_*_p() and ldn_*_p() memory access functions 2018-06-15 12:17:21 -04:00
qapi qobject: Modify qobject_ref() to return obj 2018-05-04 10:24:10 -04:00
qobject qobject: Modify qobject_ref() to return obj 2018-05-04 10:24:10 -04:00
qom qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 10:16:07 -04:00
scripts Makefile: Rename TARGET_DIRS to TARGET_LIST 2018-06-08 19:22:45 -04:00
target i386: Populate AMD Processor Cache Information for cpuid 0x8000001D 2018-06-15 11:52:28 -04:00
tcg tcg: Pass tb and index to tcg_gen_exit_tb separately 2018-06-07 11:56:32 -04:00
util osdep: powerpc64 align memory to allow 2MB radix THP page tables 2018-06-15 11:53:55 -04:00
aarch64.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
aarch64eb.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
armeb.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure Makefile: Rename TARGET_DIRS to TARGET_LIST 2018-06-08 19:22:45 -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.c: Don't accidentally sign-extend 4-byte loads in subpage_read() 2018-06-15 12:18:40 -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 cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -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 cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
Makefile Makefile: Rename TARGET_DIRS to TARGET_LIST 2018-06-08 19:22:45 -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: Protect against use-after-free 2018-03-21 09:40:33 -04:00
memory_ldst.inc.c exec: Drop unnecessary code for unicorn 2018-03-12 10:11:46 -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 cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
mips64.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
mips64el.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
mipsel.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
powerpc.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
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
sparc.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
sparc64.h cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00
unicorn_common.h cpu: Convert cpu_index into a bitmap 2018-03-21 08:06:07 -04:00
VERSION import 2015-08-21 15:04:50 +08:00
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 cputlb: Pass cpu_transaction_failed() the correct physaddr 2018-06-15 12:03:23 -04:00