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-rw-r--r--exec.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/exec.c b/exec.c
index e8d7b335b6..4d8addb263 100644
--- a/exec.c
+++ b/exec.c
@@ -1285,7 +1285,7 @@ static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end,
uint16_t section);
static subpage_t *subpage_init(FlatView *fv, hwaddr base);
-static void *(*phys_mem_alloc)(size_t size, uint64_t *align) =
+static void *(*phys_mem_alloc)(size_t size, uint64_t *align, bool shared) =
qemu_anon_ram_alloc;
/*
@@ -1293,7 +1293,7 @@ static void *(*phys_mem_alloc)(size_t size, uint64_t *align) =
* Accelerators with unusual needs may need this. Hopefully, we can
* get rid of it eventually.
*/
-void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align))
+void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align, bool shared))
{
phys_mem_alloc = alloc;
}
@@ -1921,7 +1921,7 @@ static void dirty_memory_extend(ram_addr_t old_ram_size,
}
}
-static void ram_block_add(RAMBlock *new_block, Error **errp)
+static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
{
RAMBlock *block;
RAMBlock *last_block = NULL;
@@ -1944,7 +1944,7 @@ static void ram_block_add(RAMBlock *new_block, Error **errp)
}
} else {
new_block->host = phys_mem_alloc(new_block->max_length,
- &new_block->mr->align);
+ &new_block->mr->align, shared);
if (!new_block->host) {
error_setg_errno(errp, errno,
"cannot set up guest memory '%s'",
@@ -2049,7 +2049,7 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
return NULL;
}
- ram_block_add(new_block, &local_err);
+ ram_block_add(new_block, &local_err, share);
if (local_err) {
g_free(new_block);
error_propagate(errp, local_err);
@@ -2091,7 +2091,7 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
void (*resized)(const char*,
uint64_t length,
void *host),
- void *host, bool resizeable,
+ void *host, bool resizeable, bool share,
MemoryRegion *mr, Error **errp)
{
RAMBlock *new_block;
@@ -2114,7 +2114,7 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
if (resizeable) {
new_block->flags |= RAM_RESIZEABLE;
}
- ram_block_add(new_block, &local_err);
+ ram_block_add(new_block, &local_err, share);
if (local_err) {
g_free(new_block);
error_propagate(errp, local_err);
@@ -2126,12 +2126,15 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
RAMBlock *qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
MemoryRegion *mr, Error **errp)
{
- return qemu_ram_alloc_internal(size, size, NULL, host, false, mr, errp);
+ return qemu_ram_alloc_internal(size, size, NULL, host, false,
+ false, mr, errp);
}
-RAMBlock *qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr, Error **errp)
+RAMBlock *qemu_ram_alloc(ram_addr_t size, bool share,
+ MemoryRegion *mr, Error **errp)
{
- return qemu_ram_alloc_internal(size, size, NULL, NULL, false, mr, errp);
+ return qemu_ram_alloc_internal(size, size, NULL, NULL, false,
+ share, mr, errp);
}
RAMBlock *qemu_ram_alloc_resizeable(ram_addr_t size, ram_addr_t maxsz,
@@ -2140,7 +2143,8 @@ RAMBlock *qemu_ram_alloc_resizeable(ram_addr_t size, ram_addr_t maxsz,
void *host),
MemoryRegion *mr, Error **errp)
{
- return qemu_ram_alloc_internal(size, maxsz, resized, NULL, true, mr, errp);
+ return qemu_ram_alloc_internal(size, maxsz, resized, NULL, true,
+ false, mr, errp);
}
static void reclaim_ramblock(RAMBlock *block)