Fallback to qemu_vmalloc in case file_ram_alloc fails.
Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>
Signed-off-by: Avi Kivity <a...@redhat.com>
---
exec.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/exec.c b/exec.c
index 3416aed..56b5561 100644
--- a/exec.c
+++ b/exec.c
@@ -2775,8 +2775,12 @@ ram_addr_t qemu_ram_alloc(ram_addr_t size)
if (mem_path) {
#if defined (__linux__) && !defined(TARGET_S390X)
new_block->host = file_ram_alloc(size, mem_path);
- if (!new_block->host)
- exit(1);
+ if (!new_block->host) {
+ new_block->host = qemu_vmalloc(size);
+#ifdef MADV_MERGEABLE
+ madvise(new_block->host, size, MADV_MERGEABLE);
+#endif
+ }
#else
fprintf(stderr, "-mem-path option unsupported\n");
exit(1);
--
1.6.6.1
