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Fix -mem-path with hugetlbfs

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Fallback to qemu_vmalloc in case file_ram_alloc fails.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2010-05-03 18:12:23 -03:00
parent 54d7cf136f
commit 618a568da4
1 changed files with 6 additions and 2 deletions
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8
exec.c
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@ -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);