Re: [Qemu-devel] [RFC] memory-backend-file/nvdimm: support read-only files as memory-backends

2019-07-15 Thread Stefan Hajnoczi
On Tue, Jul 09, 2019 at 12:53:45PM +0200, Philippe Mathieu-Daudé wrote: > Cc'ing Igor & Xiao. > > On 7/8/19 11:19 PM, Julio Montes wrote: > > Currently is not possible to use a file that is part of a read-only > > filesystem as memory backend for nvdimm devices, even if this is not > > modified >

Re: [Qemu-devel] [RFC] memory-backend-file/nvdimm: support read-only files as memory-backends

2019-07-09 Thread Philippe Mathieu-Daudé
Cc'ing Igor & Xiao. On 7/8/19 11:19 PM, Julio Montes wrote: > Currently is not possible to use a file that is part of a read-only > filesystem as memory backend for nvdimm devices, even if this is not modified > in the guest. In order to improve the security of Virtual Machines that share > and do

[Qemu-devel] [RFC] memory-backend-file/nvdimm: support read-only files as memory-backends

2019-07-08 Thread Julio Montes
Currently is not possible to use a file that is part of a read-only filesystem as memory backend for nvdimm devices, even if this is not modified in the guest. In order to improve the security of Virtual Machines that share and do not modify the memory-backend-file, QEMU should support read-only me