tree ece887ea04798c73e8706530688b46c9e4675c78
parent 9ba3cf540fb902cbb40f0689868d51a2ac111852
author Marcelo Tosatti <mtosatti@redhat.com> 1391539313 -0500
committer Paolo Bonzini <pbonzini@redhat.com> 1393525851 +0100

file_ram_alloc: unify mem-path,mem-prealloc error handling

-mem-prealloc asks to preallocate memory residing on -mem-path path.

Currently QEMU exits in case:

- Memory file has been created but allocation via explicit write
fails.

And it fallbacks to malloc in case:
- Querying huge page size fails.
- Lack of sync MMU support.
- Open fails.
- mmap fails.

Have the same behaviour for all cases: fail in case -mem-path and
-mem-prealloc are specified for regions where the requested size is
suitable for hugepages.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>