qemu-e2k/util
David Hildenbrand 714efd540c util/oslib-win32: indicate alignment for qemu_anon_ram_alloc()
Let's set the alignment just like for the posix variant. This will
implicitly set the alignment of the underlying memory region and
therefore make memory_region_get_alignment(mr) return something > 0 for
all memory backends applicable to PCDIMM/NVDIMM.

The allocation granularity is ususally 64k, while the page size is 4k.
The documentation of VirtualAlloc is not really comprehensible in case
only MEM_COMMIT is specified without an address. We'll detect the actual
values and then go for the bigger one. The expection is, that it will
always be 64k aligned. (The assumption is that MEM_COMMIT does an
implicit MEM_RESERVE, so the address will always be aligned to the
allocation granularity. And the allocation granularity is always bigger
than the page size).

This will allow us to drop special handling in pc.c for
memory_region_get_alignment(mr) == 0, as we can then assume that it is
always set (and AFAICS >= getpagesize()).

For pc in pc_memory_plug(), under Windows TARGET_PAGE_SIZE == getpagesize(),
therefore alignment of DIMMs will not change, and therefore also not the
guest physical memory layout.

For spapr in spapr_memory_plug(), an alignment of 0 would have been used
until now. As QEMU_ALIGN_UP will crash with the alignment being 0, this
never worked, so we don't have to care about compatibility handling.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180801133444.11269-3-david@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
..
acl.c
aio-posix.c aio-posix: Improve comment around marking node deleted 2018-08-15 10:12:35 +08:00
aio-wait.c block: make BDRV_POLL_WHILE() re-entrancy safe 2018-03-12 11:07:37 +00:00
aio-win32.c aio: Do aio_notify_accept only during blocking aio_poll 2018-08-15 10:12:35 +08:00
aiocb.c
async.c linux-aio: properly bubble up errors from initialization 2018-06-27 13:06:34 +01:00
base64.c
bitmap.c
bitops.c
buffer.c
bufferiszero.c
cacheinfo.c
compatfd.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
crc32c.c
cutils.c cutils: Provide strchrnul 2018-06-29 12:32:10 +02:00
envlist.c
error.c
event_notifier-posix.c
event_notifier-win32.c
fifo8.c
getauxval.c
hbitmap.c hbitmap: Add @advance param to hbitmap_iter_next() 2018-06-18 17:04:55 +02:00
hexdump.c
host-utils.c
id.c
iohandler.c
iov.c
iova-tree.c util: remove redundant include of glib.h and add osdep.h 2018-06-29 12:22:28 +01:00
keyval.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
lockcnt.c
log.c tcg: Optionally log FPU state in TCG -d cpu logging 2018-05-15 14:58:44 +01:00
main-loop.c main-loop: drop spin_counter 2018-06-01 16:01:29 +01:00
Makefile.objs qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
memfd.c memfd: Avoid Coverity warning about integer overflow 2018-06-01 15:13:46 +02:00
mmap-alloc.c Make qemu_mempath_getpagesize() accept NULL 2018-04-27 18:05:22 +10:00
module.c module: Use QEMU_MODULE_DIR as a search path 2018-08-23 18:46:25 +02:00
notify.c
osdep.c glib: bump min required glib library version to 2.40 2018-06-29 12:22:28 +01:00
oslib-posix.c
oslib-win32.c util/oslib-win32: indicate alignment for qemu_anon_ram_alloc() 2018-08-23 18:46:25 +02:00
pagesize.c
path.c
qdist.c
qemu-config.c block: Add block-specific QDict header 2018-06-15 14:49:44 +02:00
qemu-coroutine-io.c
qemu-coroutine-lock.c coroutine: avoid co_queue_wakeup recursion 2018-03-27 13:05:28 +01:00
qemu-coroutine-sleep.c
qemu-coroutine.c coroutine: avoid co_queue_wakeup recursion 2018-03-27 13:05:28 +01:00
qemu-error.c
qemu-openpty.c
qemu-option.c opts: remove redundant check for NULL parameter 2018-07-17 16:24:50 +02:00
qemu-progress.c
qemu-sockets.c sockets: allow SocketAddress 'fd' to reference numeric file descriptors 2018-03-13 18:06:06 +00:00
qemu-thread-common.h QemuMutex: support --enable-debug-mutex 2018-06-28 19:05:32 +02:00
qemu-thread-posix.c qemu-thread: introduce qemu-thread-common.h 2018-06-28 19:05:31 +02:00
qemu-thread-win32.c qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
qemu-timer-common.c
qemu-timer.c timer: remove replay clock probe in deadline calculation 2018-07-30 14:00:11 +02:00
qht.c qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
qsp.c qsp: track BQL callers explicitly 2018-08-23 18:46:25 +02:00
range.c
rcu.c membarrier: introduce qemu/sys_membarrier.h 2018-03-12 16:12:47 +01:00
readline.c
stats64.c
sys_membarrier.c sys_membarrier: fix up include directives 2018-04-05 14:37:38 +02:00
systemd.c
thread-pool.c
throttle.c
timed-average.c
trace-events
unicode.c
uri.c cutils: Provide strchrnul 2018-06-29 12:32:10 +02:00
uuid.c
vfio-helpers.c replace functions which are only available in glib-2.24 2018-05-20 08:55:01 +03:00