As more flag parameters besides the existing 'share' are going to be
added to memory_region_init_ram_from_file(), let's switch 'share' to
a 'flags' parameter in advance, so as to ease the further additions.
Signed-off-by: Haozhong Zhang <haozhong.zh...@intel.com>
---
backends/hostmem-file.c | 3 ++-
include/exec/memory.h | 7 +++++--
memory.c | 6 ++----
numa.c | 2 +-
4 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
index e319ec1ad8..67ecfed895 100644
--- a/backends/hostmem-file.c
+++ b/backends/hostmem-file.c
@@ -59,7 +59,8 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error
**errp)
path = object_get_canonical_path(OBJECT(backend));
memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
path,
- backend->size, fb->align, fb->share,
+ backend->size, fb->align,
+ fb->share ? QEMU_RAM_SHARE : 0,
fb->mem_path, errp);
g_free(path);
}
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 4790cd9e13..6b547da6a3 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -470,7 +470,10 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
* @size: size of the region.
* @align: alignment of the region base address; if 0, the default alignment
* (getpagesize()) will be used.
- * @share: %true if memory must be mmaped with the MAP_SHARED flag
+ * @flags: specify properties of this memory region, which can be one or bit-or
+ * of following values:
+ * - QEMU_RAM_SHARE: memory must be mmaped with the MAP_SHARED flag
+ * Other bits are ignored.
* @path: the path in which to allocate the RAM.
* @errp: pointer to Error*, to store an error if it happens.
*
@@ -482,7 +485,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
const char *name,
uint64_t size,
uint64_t align,
- bool share,
+ uint64_t flags,
const char *path,
Error **errp);
diff --git a/memory.c b/memory.c
index 1ac4ebcaca..a4f19a5d30 100644
--- a/memory.c
+++ b/memory.c
@@ -1571,7 +1571,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
const char *name,
uint64_t size,
uint64_t align,
- bool share,
+ uint64_t flags,
const char *path,
Error **errp)
{
@@ -1580,9 +1580,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
mr->align = align;
- mr->ram_block = qemu_ram_alloc_from_file(size, mr,
- share ? QEMU_RAM_SHARE : 0,
- path, errp);
+ mr->ram_block = qemu_ram_alloc_from_file(size, mr, flags, path, errp);
mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
}
diff --git a/numa.c b/numa.c
index 83675a03f3..fa202a376d 100644
--- a/numa.c
+++ b/numa.c
@@ -456,7 +456,7 @@ static void allocate_system_memory_nonnuma(MemoryRegion
*mr, Object *owner,
if (mem_path) {
#ifdef __linux__
Error *err = NULL;
- memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, false,
+ memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, 0,
mem_path, &err);
if (err) {
error_report_err(err);
--
2.14.1
