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| author | Igor Mammedov <imammedo@redhat.com> | 2014-10-31 16:38:37 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-11-23 12:11:30 +0200 |
| commit | a2b257d6212ade772473f86bf0637480b2578a7e (patch) | |
| tree | b4b86c7b8887920f8bff0b3e8ca498b574d64f00 /util | |
| parent | 92a37a04d6e034b73ea1ba4825ba4d5860f0a810 (diff) | |
| download | qemu-a2b257d6212ade772473f86bf0637480b2578a7e.zip qemu-a2b257d6212ade772473f86bf0637480b2578a7e.tar.gz qemu-a2b257d6212ade772473f86bf0637480b2578a7e.tar.bz2 | |
memory: expose alignment used for allocating RAM as MemoryRegion API
introduce memory_region_get_alignment() that returns
underlying memory block alignment or 0 if it's not
relevant/implemented for backend.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'util')
| -rw-r--r-- | util/oslib-posix.c | 5 | ||||
| -rw-r--r-- | util/oslib-win32.c | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 8c9d80e..16fcec2 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -124,7 +124,7 @@ void *qemu_memalign(size_t alignment, size_t size) } /* alloc shared memory pages */ -void *qemu_anon_ram_alloc(size_t size) +void *qemu_anon_ram_alloc(size_t size, uint64_t *alignment) { size_t align = QEMU_VMALLOC_ALIGN; size_t total = size + align - getpagesize(); @@ -136,6 +136,9 @@ void *qemu_anon_ram_alloc(size_t size) return NULL; } + if (alignment) { + *alignment = align; + } ptr += offset; total -= offset; diff --git a/util/oslib-win32.c b/util/oslib-win32.c index a3eab4a..87cfbe0 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -67,7 +67,7 @@ void *qemu_memalign(size_t alignment, size_t size) return qemu_oom_check(qemu_try_memalign(alignment, size)); } -void *qemu_anon_ram_alloc(size_t size) +void *qemu_anon_ram_alloc(size_t size, uint64_t *align) { void *ptr; |