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-rw-r--r--exec.c36
-rw-r--r--include/exec/ram_addr.h4
-rw-r--r--memory.c9
3 files changed, 35 insertions, 14 deletions
diff --git a/exec.c b/exec.c
index 7dddcc8034..2b9c4c5ab6 100644
--- a/exec.c
+++ b/exec.c
@@ -1259,7 +1259,7 @@ static int memory_try_enable_merging(void *addr, size_t len)
return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE);
}
-static ram_addr_t ram_block_add(RAMBlock *new_block)
+static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
{
RAMBlock *block;
ram_addr_t old_ram_size, new_ram_size;
@@ -1276,9 +1276,11 @@ static ram_addr_t ram_block_add(RAMBlock *new_block)
} else {
new_block->host = phys_mem_alloc(new_block->length);
if (!new_block->host) {
- fprintf(stderr, "Cannot set up guest memory '%s': %s\n",
- memory_region_name(new_block->mr), strerror(errno));
- exit(1);
+ error_setg_errno(errp, errno,
+ "cannot set up guest memory '%s'",
+ memory_region_name(new_block->mr));
+ qemu_mutex_unlock_ramlist();
+ return -1;
}
memory_try_enable_merging(new_block->host, new_block->length);
}
@@ -1329,6 +1331,8 @@ ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
Error **errp)
{
RAMBlock *new_block;
+ ram_addr_t addr;
+ Error *local_err = NULL;
if (xen_enabled()) {
error_setg(errp, "-mem-path not supported with Xen");
@@ -1358,14 +1362,22 @@ ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
return -1;
}
- return ram_block_add(new_block);
+ addr = ram_block_add(new_block, &local_err);
+ if (local_err) {
+ g_free(new_block);
+ error_propagate(errp, local_err);
+ return -1;
+ }
+ return addr;
}
#endif
ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
- MemoryRegion *mr)
+ MemoryRegion *mr, Error **errp)
{
RAMBlock *new_block;
+ ram_addr_t addr;
+ Error *local_err = NULL;
size = TARGET_PAGE_ALIGN(size);
new_block = g_malloc0(sizeof(*new_block));
@@ -1376,12 +1388,18 @@ ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
if (host) {
new_block->flags |= RAM_PREALLOC;
}
- return ram_block_add(new_block);
+ addr = ram_block_add(new_block, &local_err);
+ if (local_err) {
+ g_free(new_block);
+ error_propagate(errp, local_err);
+ return -1;
+ }
+ return addr;
}
-ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr)
+ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr, Error **errp)
{
- return qemu_ram_alloc_from_ptr(size, NULL, mr);
+ return qemu_ram_alloc_from_ptr(size, NULL, mr, errp);
}
void qemu_ram_free_from_ptr(ram_addr_t addr)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index 6593be1310..cf1d4c7e1f 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -26,8 +26,8 @@ ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
bool share, const char *mem_path,
Error **errp);
ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
- MemoryRegion *mr);
-ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr);
+ MemoryRegion *mr, Error **errp);
+ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr, Error **errp);
int qemu_get_ram_fd(ram_addr_t addr);
void *qemu_get_ram_block_host_ptr(ram_addr_t addr);
void *qemu_get_ram_ptr(ram_addr_t addr);
diff --git a/memory.c b/memory.c
index 1bae951df7..930fa5d162 100644
--- a/memory.c
+++ b/memory.c
@@ -1148,7 +1148,7 @@ void memory_region_init_ram(MemoryRegion *mr,
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
- mr->ram_addr = qemu_ram_alloc(size, mr);
+ mr->ram_addr = qemu_ram_alloc(size, mr, &error_abort);
}
#ifdef __linux__
@@ -1178,7 +1178,10 @@ void memory_region_init_ram_ptr(MemoryRegion *mr,
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram_from_ptr;
- mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr);
+
+ /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */
+ assert(ptr != NULL);
+ mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_abort);
}
void memory_region_init_alias(MemoryRegion *mr,
@@ -1208,7 +1211,7 @@ void memory_region_init_rom_device(MemoryRegion *mr,
mr->terminates = true;
mr->rom_device = true;
mr->destructor = memory_region_destructor_rom_device;
- mr->ram_addr = qemu_ram_alloc(size, mr);
+ mr->ram_addr = qemu_ram_alloc(size, mr, &error_abort);
}
void memory_region_init_iommu(MemoryRegion *mr,