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Benjamin Herrenschmidt 7a0bac4da9 Add a memory barrier to DMA functions 
The emulated devices can run simultaneously with the guest, so
we need to be careful with ordering of load and stores done by
them to the guest system memory, which need to be observed in
the right order by the guest operating system.

This adds a barrier call to the basic DMA read/write ops which
is currently implemented as a smp_mb(), but could be later
improved for more fine grained control of barriers.

Additionally, a _relaxed() variant of the accessors is provided
to easily convert devices who would be performance sensitive
and negatively impacted by the change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-27 16:33:26 -05:00
audio
audio/winwave: Fix typo
2012-06-15 20:58:54 +04:00
block
raw-posix: Fix build without is_allocated support
2012-06-24 01:04:45 +02:00
bsd-user
build: move *-user/ objects to nested Makefile.objs
2012-06-07 07:17:33 +02:00
default-configs
xilinx_axi*: Share devices between microblaze and microblazeel
2012-06-15 12:44:27 +02:00
docs
spapr: Add "memop" hypercall
2012-06-24 01:04:45 +02:00
fpu
…
fsdev
build: move fsdev/ objects to nested Makefile.objs
2012-06-07 09:21:13 +02:00
gdb-xml
…
hw
pseries: Implement IOMMU and DMA for PAPR PCI devices
2012-06-27 16:33:26 -05:00
include/qemu
Merge remote-tracking branch 'afaerber-or/qom-next-2' into staging
2012-06-18 10:35:16 -05:00
libcacard
libcacard: build fixes
2012-06-21 20:04:24 +00:00
linux-headers
kvm: Update kernel headers
2012-06-18 15:32:45 +02:00
linux-user
Merge branch 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm
2012-06-24 10:48:01 +00:00
net
qmp: include monitor.h when needed
2012-06-15 10:41:05 -03:00
pc-bios
PPC: e500: dt: start with empty device tree
2012-06-24 01:04:48 +02:00
qapi
qmp: do not include monitor.h from qapi-types-core.h
2012-06-15 10:41:05 -03:00
qga
qemu-ga: add guest-fstrim command
2012-06-21 17:59:27 -05:00
QMP
Add event notification for guest balloon changes
2012-06-15 13:34:50 -03:00
qom
qom: Push error reporting to object_property_find()
2012-06-18 15:14:38 +02:00
roms
…
scripts
Merge remote-tracking branch 'stefanha/trivial-patches' into staging
2012-06-26 15:09:47 -05:00
slirp
build: move slirp/ objects to nested Makefile.objs
2012-06-07 09:21:15 +02:00
sysconfigs/target
…
target-alpha
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-arm
target-arm: Remove ARM_CPUID_* macros
2012-06-20 12:13:28 +00:00
target-cris
cris: Fix NMI-flag handling on crisv10.
2012-06-15 13:21:32 +02:00
target-i386
target-i386: Use QEMU instead of Qemu
2012-06-22 10:34:21 +01:00
target-lm32
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-m68k
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-microblaze
qemu-log: use LOG_UNIMP for some target CPU cases
2012-06-21 18:45:22 +00:00
target-mips
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-ppc
pseries: Convert sPAPR TCEs to use generic IOMMU infrastructure
2012-06-27 16:33:25 -05:00
target-s390x
Merge branch 's390-for-upstream' of git://repo.or.cz/qemu/agraf
2012-06-24 10:45:55 +00:00
target-sh4
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-sparc
qemu-log: use LOG_UNIMP for some target CPU cases
2012-06-21 18:45:22 +00:00
target-unicore32
build: move other target-*/ objects to nested Makefile.objs
2012-06-07 09:21:11 +02:00
target-xtensa
target-xtensa: switch to AREG0-free mode
2012-06-10 20:09:22 +00:00
tcg
tci: don't write zero for reloc in tci_out_label
2012-06-24 12:19:24 +00:00
tests
qtest: fix infinite loop when QEMU aborts abruptly
2012-06-27 16:26:59 -05:00
trace
trace/simple.c: fix deprecated glib2 interface
2012-06-08 09:32:40 +01:00
ui
Remove support for non-threaded VNC server
2012-06-27 16:27:00 -05:00
.gitignore
…
.gitmodules
…
.mailmap
…
a.out.h
…
acl.c
…
acl.h
…
aes.c
…
aes.h
…
aio.c
…
alpha-dis.c
…
alpha.ld
…
arch_init.c
…
arch_init.h
…
arm-dis.c
…
arm.ld
…
async.c
…
balloon.c
Add event notification for guest balloon changes
2012-06-15 13:34:50 -03:00
balloon.h
Add event notification for guest balloon changes
2012-06-15 13:34:50 -03:00
bitmap.c
…
bitmap.h
…
bitops.c
…
bitops.h
…
block_int.h
qemu-img check -r for repairing images
2012-06-15 14:03:42 +02:00
block-migration.c
…
block-migration.h
…
block.c
block: Replace bdrv_get_format() by bdrv_get_format_name()
2012-06-15 14:03:43 +02:00
block.h
block: Replace bdrv_get_format() by bdrv_get_format_name()
2012-06-15 14:03:43 +02:00
blockdev.c
block: Simplify how drive_init() computes default ID
2012-06-15 14:03:42 +02:00
blockdev.h
…
bswap.h
…
bt-host.c
…
bt-host.h
…
bt-vhci.c
…
buffered_file.c
…
buffered_file.h
…
cache-utils.c
…
cache-utils.h
…
Changelog
…
cmd.c
…
cmd.h
…
CODING_STYLE
…
compatfd.c
…
compatfd.h
…
compiler.h
…
config.h
…
configure
Remove support for non-threaded VNC server
2012-06-27 16:27:00 -05:00
console.c
…
console.h
…
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
…
coroutine-sigaltstack.c
…
coroutine-ucontext.c
…
coroutine-win32.c
…
cpu-all.h
ppc: Move load and store helpers, switch to AREG0 free mode
2012-06-24 01:04:43 +02:00
cpu-common.h
…
cpu-defs.h
…
cpu-exec.c
cris: Fix NMI-flag handling on crisv10.
2012-06-15 13:21:32 +02:00
cpus.c
…
cpus.h
…
cputlb.c
…
cputlb.h
…
cris-dis.c
…
cursor_hidden.xpm
…
cursor_left_ptr.xpm
…
cursor.c
…
cutils.c
…
def-helper.h
…
device_tree.c
dt: make setprop argument static
2012-06-24 01:04:51 +02:00
device_tree.h
dt: make setprop argument static
2012-06-24 01:04:51 +02:00
dis-asm.h
…
disas.c
…
disas.h
…
dma-helpers.c
Add a memory barrier to DMA functions
2012-06-27 16:33:26 -05:00
dma.h
Add a memory barrier to DMA functions
2012-06-27 16:33:26 -05:00
dump-stub.c
dump: Fix license version (GPL2+ instead of GPL2)
2012-06-11 22:20:21 +02:00
dump.c
dump: Fix license version (GPL2+ instead of GPL2)
2012-06-11 22:20:21 +02:00
dump.h
dump: Fix license version (GPL2+ instead of GPL2)
2012-06-11 22:20:21 +02:00
dyngen-exec.h
…
elf.h
…
envlist.c
…
envlist.h
…
error_int.h
…
error.c
…
error.h
…
event_notifier.c
…
event_notifier.h
…
exec-all.h
…
exec-memory.h
…
exec-obsolete.h
…
exec.c
qemu-log: move logging to qemu-log.c
2012-06-21 18:45:16 +00:00
gdbstub.c
…
gdbstub.h
…
gen-icount.h
…
HACKING
…
hmp-commands.hx
qapi: convert netdev_del
2012-06-04 13:49:35 -03:00
hmp.c
qmp: include monitor.h when needed
2012-06-15 10:41:05 -03:00
hmp.h
qapi: convert netdev_del
2012-06-04 13:49:35 -03:00
host-utils.c
…
host-utils.h
…
hppa-dis.c
…
hppa.ld
…
i386-dis.c
…
i386.ld
…
ia64-dis.c
…
ia64.ld
…
input.c
…
int128.h
…
iohandler.c
…
ioport.c
…
ioport.h
…
iorange.h
…
iov.c
…
iov.h
…
json-lexer.c
…
json-lexer.h
…
json-parser.c
…
json-parser.h
…
json-streamer.c
…
json-streamer.h
…
kvm-all.c
kvm: add missing include files
2012-06-15 10:41:05 -03:00
kvm-stub.c
…
kvm.h
…
libfdt_env.h
…
LICENSE
…
linux-aio.c
…
lm32-dis.c
…
m68k-dis.c
…
m68k.ld
…
main-loop.c
…
main-loop.h
…
MAINTAINERS
MAINTAINERS: Added device tree
2012-06-27 11:57:17 +02:00
Makefile
Merge remote-tracking branch 'stefanha/trivial-patches' into staging
2012-06-26 15:09:47 -05:00
Makefile.dis
make: automatically include dependencies in recursive subdir rules (v2)
2012-06-19 13:32:42 -05:00
Makefile.hw
Makefile.hw: avoid overly large 'make clean' rm command
2012-06-22 10:34:21 +01:00
Makefile.objs
qemu-log: move logging to qemu-log.c
2012-06-21 18:45:16 +00:00
Makefile.target
Makefile.target: Update clean command to clean hw/ directory
2012-06-27 16:26:59 -05:00
Makefile.user
Makefile.user: Define CONFIG_USER_ONLY for libuser/
2012-06-22 09:41:31 +01:00
memory_mapping-stub.c
Fix some more license versions (GPL2+ instead of GPL2)
2012-06-15 10:41:05 -03:00
memory_mapping.c
Fix some more license versions (GPL2+ instead of GPL2)
2012-06-15 10:41:05 -03:00
memory_mapping.h
Fix some more license versions (GPL2+ instead of GPL2)
2012-06-15 10:41:05 -03:00
memory.c
…
memory.h
…
microblaze-dis.c
…
migration-exec.c
…
migration-fd.c
…
migration-tcp.c
…
migration-unix.c
…
migration.c
…
migration.h
…
mips-dis.c
…
mips.ld
…
module.c
…
module.h
…
monitor.c
Add rate limiting of RTC_CHANGE, BALLOON_CHANGE & WATCHDOG events
2012-06-15 13:35:00 -03:00
monitor.h
Add event notification for guest balloon changes
2012-06-15 13:34:50 -03:00
nbd.c
…
nbd.h
…
net.c
qapi: convert netdev_del
2012-06-04 13:49:35 -03:00
net.h
qapi: convert netdev_del
2012-06-04 13:49:35 -03:00
notify.c
…
notify.h
…
os-posix.c
…
os-win32.c
Prevent disk data loss when closing qemu
2012-06-15 14:03:42 +02:00
osdep.c
Allow machines to configure the QEMU_VERSION that's exposed via hardware
2012-06-19 13:36:56 -05:00
osdep.h
Allow machines to configure the QEMU_VERSION that's exposed via hardware
2012-06-19 13:36:56 -05:00
oslib-posix.c
…
oslib-win32.c
…
path.c
…
pci-ids.txt
…
pflib.c
…
pflib.h
…
poison.h
…
posix-aio-compat.c
…
ppc64.ld
…
ppc-dis.c
…
ppc.ld
…
qapi-schema-guest.json
qemu-ga: add guest-fstrim command
2012-06-21 17:59:27 -05:00
qapi-schema-test.json
…
qapi-schema.json
Add 'query-events' command to QMP to query async events
2012-06-04 13:49:35 -03:00
qbool.c
…
qbool.h
…
qdict-test-data.txt
…
qdict.c
…
qdict.h
…
qemu_socket.h
…
qemu-aio.h
…
qemu-barrier.h
…
qemu-bridge-helper.c
…
qemu-char.c
do not include <libutil.h> needlessly or if it doesn't exist
2012-06-09 10:30:08 +00:00
qemu-char.h
…
qemu-common.h
qdev-properties: Introduce pci-host-devaddr.
2012-06-21 16:06:10 +00:00
qemu-config.c
PPC: e500: allow users to set the /compatible property via -machine
2012-06-24 01:04:51 +02:00
qemu-config.h
qemu-config: Use QEMU instead of Qemu
2012-06-22 09:41:31 +01:00
qemu-coroutine-int.h
…
qemu-coroutine-io.c
…
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
…
qemu-coroutine.h
…
qemu-doc.texi
…
qemu-error.c
…
qemu-error.h
…
qemu-file.h
…
qemu-ga.c
…
qemu-img-cmds.hx
qemu-img check -r for repairing images
2012-06-15 14:03:42 +02:00
qemu-img.c
block: Replace bdrv_get_format() by bdrv_get_format_name()
2012-06-15 14:03:43 +02:00
qemu-img.texi
qemu-img: document qed format on qemu-img man page
2012-06-15 14:03:43 +02:00
qemu-io.c
…
qemu-lock.h
…
qemu-log.c
qemu-log: add log category for unimplemented functionality
2012-06-21 18:45:20 +00:00
qemu-log.h
qemu-log: Add GCC format attribute
2012-06-24 12:16:51 +00:00
qemu-nbd.c
…
qemu-nbd.texi
…
qemu-objects.h
…
qemu-option.c
qemu-option: qemu_opts_from_qdict(): use error_set()
2012-06-04 13:49:34 -03:00
qemu-option.h
qemu-option: qemu_opts_from_qdict(): use error_set()
2012-06-04 13:49:34 -03:00
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
…
qemu-os-posix.h
…
qemu-os-win32.h
…
qemu-progress.c
…
qemu-queue.h
…
qemu-sockets.c
…
qemu-tech.texi
…
qemu-thread-posix.c
…
qemu-thread-posix.h
…
qemu-thread-win32.c
…
qemu-thread-win32.h
…
qemu-thread.h
…
qemu-timer-common.c
…
qemu-timer.c
…
qemu-timer.h
…
qemu-tls.h
…
qemu-tool.c
qemu-log: cleanup
2012-06-21 18:45:18 +00:00
qemu-user.c
…
qemu-x509.h
…
qemu-xattr.h
…
qemu.sasl
…
qerror.c
qerror: introduce QERR_INVALID_OPTION_GROUP
2012-06-04 13:49:34 -03:00
qerror.h
qerror: introduce QERR_INVALID_OPTION_GROUP
2012-06-04 13:49:34 -03:00
qfloat.c
…
qfloat.h
…
qint.c
…
qint.h
…
qjson.c
…
qjson.h
…
qlist.c
…
qlist.h
…
qmp-commands.hx
Add 'query-events' command to QMP to query async events
2012-06-04 13:49:35 -03:00
qmp.c
…
qobject.h
…
qstring.c
…
qstring.h
…
qtest.c
…
qtest.h
…
range.h
…
readline.c
monitor: Fix memory leak with readline completion
2012-06-15 10:41:05 -03:00
readline.h
…
README
…
rules.mak
make: automatically include dependencies in recursive subdir rules (v2)
2012-06-19 13:32:42 -05:00
s390-dis.c
…
s390.ld
…
savevm.c
Merge remote-tracking branch 'afaerber-or/qom-next-2' into staging
2012-06-18 10:35:16 -05:00
sh4-dis.c
…
softmmu_defs.h
…
softmmu_exec.h
…
softmmu_header.h
…
softmmu_template.h
…
softmmu-semi.h
…
sparc64.ld
…
sparc-dis.c
…
sparc.ld
…
spice-qemu-char.c
…
sysemu.h
…
targphys.h
…
tcg-runtime.c
…
tci-dis.c
…
tci.c
tci: Support INDEX_op_bswap64_i64
2012-06-22 10:34:21 +01:00
thunk.c
…
thunk.h
…
TODO
…
trace-events
ehci: tracing improvements
2012-06-20 14:46:02 +02:00
translate-all.c
…
uboot_image.h
…
user-exec.c
…
VERSION
…
version.rc
…
vgafont.h
…
vl.c
Allow machines to configure the QEMU_VERSION that's exposed via hardware
2012-06-19 13:36:56 -05:00
vmstate.h
…
x86_64.ld
…
xen-all.c
Introduce Xen PCI Passthrough, qdevice
2012-06-21 16:06:10 +00:00
xen-mapcache.c
…
xen-mapcache.h
…
xen-stub.c
…

README 

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

- QEMU team
Description
Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
Readme 524 MiB
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C++ 7%
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