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Peter Crosthwaite 33bbd75a7c arm: translate.c: Fix smlald Instruction 
The smlald (and probably smlsld) instruction was doing incorrect sign
extensions of the operands amongst 64bit result calculation. The
instruction psuedo-code is:

 operand2 = if m_swap then ROR(R[m],16) else R[m];
 product1 = SInt(R[n]<15:0>) * SInt(operand2<15:0>);
 product2 = SInt(R[n]<31:16>) * SInt(operand2<31:16>);
 result = product1 + product2 + SInt(R[dHi]:R[dLo]);
 R[dHi] = result<63:32>;
 R[dLo] = result<31:0>;

The result calculation should be done in 64 bit arithmetic, and hence
product1 and product2 should be sign extended to 64b before calculation.

The current implementation was adding product1 and product2 together
then sign-extending the intermediate result leading to false negatives.

E.G. if product1 = product2 = 0x4000000, their sum = 0x80000000, which
will be incorrectly interpreted as -ve on sign extension.

We fix by doing the 64b extensions on both product1 and product2 before
any addition/subtraction happens.

We also fix where we were possibly incorrectly setting the Q saturation
flag for SMLSLD, which the ARM ARM specifically says is not set.

Reported-by: Christina Smith <christina.smith@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 2cddb6f5a15be4ab8d2160f3499d128ae93d304d.1397704570.git.peter.crosthwaite@xilinx.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 		2014-04-17 21:34:07 +01:00
audio Add the ability to vary Spice playback and record rates, to facilitate Opus support. 2014-02-03 11:05:15 +01:00
backends backends/baum.c: Fix compilation when SDL is not available. 2014-03-24 17:47:29 +00:00
block iscsi: Remember to set ret for iscsi_open in error case 2014-04-11 13:59:49 +02:00
bsd-user cpu: Move opaque field from CPU_COMMON to CPUState 2014-03-13 19:20:47 +01:00
default-configs Add Enhanced Three-Speed Ethernet Controller (eTSEC) 2014-03-05 03:06:45 +01:00
disas libvixl: Fix format strings for several int64_t values 2014-03-10 14:56:29 +00:00
docs Docs: Introduce multiport serial support in qemupciserial.inf. 2014-03-12 15:03:42 +00:00
dtc@bc895d6d09 dtc: add submodule 2013-04-18 13:50:53 +02:00
fpu softfloat: Introduce float32_to_uint64_round_to_zero 2014-04-08 11:20:00 +02:00
fsdev hw/9pfs: Include virtio-9p-device.o in build 2014-03-04 09:20:49 +05:30
gdb-xml target-arm: Support fp registers in gdb stub 2013-12-17 19:42:32 +00:00
hw net: cadence_gem: Make phy respond to broadcast 2014-04-17 21:34:07 +01:00
include allwinner-emac: set autonegotiation complete bit on link up 2014-04-17 21:34:06 +01:00
libcacard Add a 'name' parameter to qemu_thread_create 2014-03-09 21:09:38 +02:00
linux-headers update linux headers to kvm/next 2014-02-27 09:50:45 +01:00
linux-user target-arm: Define exception record for AArch64 exceptions 2014-04-17 21:34:03 +01:00
net net: netmap_poll must update both read/write poll state 2014-03-25 13:31:38 +01:00
pc-bios pseries: Update SLOF firmware image to qemu-slof-20140404 2014-04-08 11:20:00 +02:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
po po: Update all *.po files 2013-08-07 12:48:00 -05:00
qapi qapi: Add missing null check to opts_start_struct() 2014-03-03 11:17:45 -05:00
qga vss-win32: Fix build with mingw64-headers-3.1.0 2014-04-07 14:39:19 -05:00
qobject qdict: Extract non-QDicts in qdict_array_split() 2014-02-21 22:11:23 +01:00
qom qom: Fix crash with qom-list and link properties 2014-04-11 17:57:36 +01:00
roms pseries: Update SLOF firmware image to qemu-slof-20140404 2014-04-08 11:20:00 +02:00
scripts make-release: Record SeaBIOS version 2014-03-31 15:02:04 +01:00
slirp Fixed various typos 2014-03-25 14:09:50 +01:00
stubs blockdev: Refuse to open encrypted image unless paused 2014-03-14 16:24:42 +01:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha target-alpha: fix subl and s8subl indentation 2014-03-17 13:21:12 +01:00
target-arm arm: translate.c: Fix smlald Instruction 2014-04-17 21:34:07 +01:00
target-cris cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-i386 target-i386: reorder fields in cpu/msr_hyperv_hypercall subsection 2014-04-05 10:49:05 +01:00
target-lm32 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-m68k cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-microblaze cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-mips target-mips: Avoid shifting left into sign bit 2014-03-27 19:22:49 +04:00
target-moxie cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-openrisc cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-ppc PPC: Add l1 cache sizes for 970 and above systems 2014-04-08 11:20:06 +02:00
target-s390x target-s390x: Add missing 'static' and 'const' attributes 2014-03-27 19:22:48 +04:00
target-sh4 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-sparc target-sparc: fix 32bit integer division overflow 2014-03-26 23:40:40 +00:00
target-unicore32 cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
target-xtensa cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
tcg tcg-aarch64: Use tcg_out_mov in preference to tcg_out_movr 2014-04-16 12:13:02 -04:00
tests acpi-test: update expected files 2014-04-14 15:13:27 +03:00
trace osdep: initialize glib threads in all QEMU tools 2014-03-25 13:39:31 +01:00
ui input: sdl2: Fix relative mode to match SDL1 behavior 2014-04-11 12:19:16 +02:00
util acpi,pc,build bug fixes 2014-03-28 13:46:29 +00:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore Add qga/qapi-generated to .gitignore 2014-03-15 13:54:18 +04:00
.gitmodules Add OpenHack'Ware submodule 2014-03-12 17:26:32 +01:00
.mailmap Update mailmap 2013-09-05 09:40:31 -05:00
.travis.yml .travis.yml: add IRC notifications for build failures 2014-03-15 13:54:18 +04:00
CODING_STYLE CODING_STYLE: Section about mixed declarations 2014-03-27 19:22:49 +04:00
COPYING
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COPYING.LIB
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Changelog Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
HACKING HACKING: Document vaddr type usage 2013-07-23 02:41:31 +02:00
LICENSE LICENSE: clarify 2013-08-12 09:15:12 -05:00
MAINTAINERS ui: Update MAINTAINERS entry. 2014-04-07 10:50:30 +02:00
Makefile Makefile: add qga-vss-dll-obj-y to nested variables 2014-04-07 14:39:19 -05:00
Makefile.objs iothread: add I/O thread object 2014-03-13 14:42:24 +01:00
Makefile.target build: softmmu targets do not have a "main.o" file 2014-02-20 13:14:18 +01:00
README Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
VERSION Open 2.1 development tree 2014-04-17 20:39:32 +01:00
aio-posix.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
aio-win32.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
arch_init.c XBZRLE: Fix qemu crash when resize the xbzrle cache 2014-03-08 22:22:34 +01:00
async.c aio: add aio_context_acquire() and aio_context_release() 2014-03-13 14:42:24 +01:00
balloon.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
block-migration.c block: per caller dirty bitmap 2013-11-29 13:40:33 +01:00
block.c block: Check bdrv_getlength() return value in bdrv_append_temp_snapshot() 2014-04-04 19:35:52 +02:00
blockdev-nbd.c nbd: use BlockDriverState refcnt 2013-09-06 15:25:08 +02:00
blockdev.c block-commit: speed is an optional parameter 2014-04-11 13:59:49 +02:00
blockjob.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
bt-host.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
bt-vhci.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
configure configure: Make stack-protector test check both compile and link 2014-04-14 12:11:18 +01:00
coroutine-gthread.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
coroutine-sigaltstack.c Merge remote-tracking branch 'kwolf/for-anthony' into staging 2013-02-26 07:44:39 -06:00
coroutine-ucontext.c Fix warnings suppressors to honor --disable-werror 2013-04-17 10:28:04 -05:00
coroutine-win32.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
cpu-exec.c cpu-exec: Unlock tb_lock if we longjmp out of code generation 2014-04-04 18:29:25 +01:00
cpus.c cpu: Move icount_decr field from CPU_COMMON to CPUState 2014-03-13 19:20:46 +01:00
cputlb.c cputlb: Change tlb_set_page() argument to CPUState 2014-03-13 19:52:47 +01:00
device-hotplug.c hw/boards: Convert current_machine to MachineState 2014-03-12 20:13:02 +01:00
device_tree.c device_tree: qemu_fdt_setprop: Rename val_array arg 2013-12-20 01:58:12 +01:00
disas.c disas: Implement disassembly output for A64 2014-02-08 14:50:48 +00:00
dma-helpers.c dma-helpers: Initialize DMAAIOCB in_cancel flag 2014-04-04 19:36:39 +02:00
dump.c dump: add 'query-dump-guest-memory-capability' command 2014-02-28 11:52:03 -05:00
exec.c exec: Fix CPU rework fallout 2014-03-19 19:47:15 +01:00
gdbstub.c exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argument 2014-03-13 19:20:48 +01:00
hmp-commands.hx block: update block commit documentation regarding image truncation 2014-01-24 16:12:49 +01:00
hmp.c dump: make kdump-compressed format available for 'dump-guest-memory' 2014-02-28 11:52:03 -05:00
hmp.h monitor: add object-add (QMP) and object_add (HMP) command 2014-01-06 13:45:47 -05:00
iohandler.c iohandler: switch to GPollFD 2013-02-21 16:17:31 -06:00
ioport.c portio: Allow to mark portio lists as coalesced MMIO flushing 2013-10-17 17:24:15 +02:00
iothread.c iothread: make IOThread struct definition public 2014-04-04 20:48:02 +02:00
kvm-all.c Revert "fix return check for KVM_GET_DIRTY_LOG ioctl" 2014-04-14 15:40:02 +01:00
kvm-stub.c Revert "KVM: Split QEMUMachine typedef into separate header" 2014-03-13 03:49:48 +01:00
main-loop.c main-loop: Suppress "I/O thread spun" warnings for qtest 2014-03-13 21:36:50 +01:00
memory.c memory_region_present: return false if address is not found in child MemoryRegion 2014-03-09 21:09:37 +02:00
memory_mapping.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
migration-exec.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-fd.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-rdma.c rdma: rename 'x-rdma' => 'rdma' 2014-02-25 14:30:28 +01:00
migration-tcp.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-unix.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration.c migration: add more traces 2014-03-27 15:19:00 +05:30
module-common.c module: implement module loading 2014-02-20 13:14:18 +01:00
monitor.c input: mouse: switch monitor to new core 2014-03-05 09:52:03 +01:00
nbd.c nbd: move socket wrappers to qemu-nbd 2014-02-21 21:02:23 +01:00
os-posix.c oslib-posix: Fix build on FreeBSD 2014-03-13 14:34:16 +00:00
os-win32.c util: Split out exec_dir from os_find_datadir 2014-02-20 13:12:54 +01:00
page_cache.c Fix two XBZRLE corruption issues 2014-02-25 14:30:28 +01:00
qapi-schema.json virtio-net: add vlan receive state to RxFilterInfo 2014-03-26 12:49:10 +02:00
qdev-monitor.c qdev-monitor: Set properties after parent is assigned in device_add 2014-03-12 20:13:02 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c qemu-bridge-helper: force usage of a very high MAC address for the bridge 2013-03-28 12:58:52 -05:00
qemu-char.c char: restore read callback on a reattached (hotplug) chardev 2014-03-13 10:33:45 +01:00
qemu-coroutine-io.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
qemu-coroutine-lock.c coroutine: remove qemu_co_queue_wait_insert_head 2013-12-02 17:11:49 +01:00
qemu-coroutine-sleep.c coroutine: add co_aio_sleep_ns() to allow sleep in block drivers 2013-10-30 12:22:09 +01:00
qemu-coroutine.c coroutine: add ./configure --disable-coroutine-pool 2013-09-12 10:12:48 +02:00
qemu-doc.texi doc: update default PowerPC framebuffer settings 2014-03-27 19:22:49 +04:00
qemu-file.c migration: add more traces 2014-03-27 15:19:00 +05:30
qemu-img-cmds.hx qemu-img: add -l for snapshot in convert 2013-12-04 15:19:00 +01:00
qemu-img.c qemu-img: Release reference to BlockDriverState 2014-04-01 13:49:53 +02:00
qemu-img.texi Describe flaws in qcow/qcow2 encryption in the docs 2014-01-31 22:05:03 +01:00
qemu-io-cmds.c qemu-io-cmds: Fixed typo in example for writev. 2014-03-19 09:39:41 +01:00
qemu-io.c qemu-io: Extended "--cmd" description in usage text 2014-03-19 09:39:41 +01:00
qemu-log.c qemu-log: default to stderr for logging output 2013-02-26 13:31:47 -06:00
qemu-nbd.c qemu-nbd: Fix coverity issues 2014-03-17 13:21:11 +01:00
qemu-nbd.texi qemu-nbd: add doc for option -f 2013-12-04 15:19:00 +01:00
qemu-options-wrapper.h vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
qemu-options.h vl.c: Move option generation logic into a wrapper file 2011-12-19 10:27:33 -06:00
qemu-options.hx doc: update sun4m documentation 2014-03-27 19:22:48 +04:00
qemu-seccomp.c seccomp: add some basic shared memory syscalls to the whitelist 2014-01-20 11:19:34 -02:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c timer: add timer_mod_anticipate and timer_mod_anticipate_ns 2013-10-17 17:31:00 +02:00
qemu.nsi nsis: Improved support for parallel installation of 32 and 64 bit code 2013-11-07 07:02:44 +01:00
qemu.sasl sasl: Avoid 'Could not find keytab file' in syslog 2014-03-15 13:54:18 +04:00
qmp-commands.hx virtio-net: add vlan receive state to RxFilterInfo 2014-03-26 12:49:10 +02:00
qmp.c hw/boards: Convert current_machine to MachineState 2014-03-12 20:13:02 +01:00
qtest.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00
rules.mak rules.mak: Fix per object libs extraction 2014-03-17 13:21:11 +01:00
savevm.c migration: add more traces 2014-03-27 15:19:00 +05:30
spice-qemu-char.c spice: hook qemu_chr_fe_set_open() event to ports 2014-02-03 11:05:15 +01:00
tcg-runtime.c tcg: Implement multiword multiply helpers 2013-02-23 17:25:28 +00:00
tci.c misc: Use new rotate functions 2013-09-25 21:23:05 +02:00
thread-pool.c Add a 'name' parameter to qemu_thread_create 2014-03-09 21:09:38 +02:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
tpm.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
trace-events input: fix input_event_key_number trace event 2014-04-01 10:17:45 +02:00
translate-all.c page_check_range: don't bail out early after unprotecting page 2014-04-04 18:16:03 +01:00
translate-all.h translate-all: Change tb_check_watchpoint() argument to CPUState 2014-03-13 19:20:48 +01:00
user-exec.c tcg-aarch64: Properly detect SIGSEGV writes 2014-04-16 12:12:32 -04:00
version.rc Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
vl.c vl.c: Improve message when no default machine is found 2014-03-27 14:01:13 +00:00
vmstate.c migration: add more traces 2014-03-27 15:19:00 +05:30
xbzrle.c Move XBZRLE encoding code to a separate file to allow testing 2013-02-01 08:32:20 +01:00
xen-all.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00
xen-mapcache.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00
xen-stub.c kvm: Add a new machine option kvm-type 2014-03-05 03:06:24 +01:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team