On 05/30/17 10:16 +0100, Stefan Hajnoczi wrote:
> On Fri, May 26, 2017 at 10:24:38AM +0800, Haozhong Zhang wrote:
> > file_ram_alloc() currently maps the backend file via mmap to a virtual
> > address aligned to the value returned by qemu_fd_getpagesize(). When a
> > DAX device (e.g. /dev/dax0.0) i
On Fri, May 26, 2017 at 10:24:38AM +0800, Haozhong Zhang wrote:
> file_ram_alloc() currently maps the backend file via mmap to a virtual
> address aligned to the value returned by qemu_fd_getpagesize(). When a
> DAX device (e.g. /dev/dax0.0) is used as the backend file, its kernel
> mmap implementa
file_ram_alloc() currently maps the backend file via mmap to a virtual
address aligned to the value returned by qemu_fd_getpagesize(). When a
DAX device (e.g. /dev/dax0.0) is used as the backend file, its kernel
mmap implementation may require an alignment larger than what
qemu_fd_get_pagesize() re
