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Tsirkin" , Julio Montes , Xiao Guangrong , eric.g.ernst@gmail.com, Igor Mammedov , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --JcvBIhDvR6w3jUPA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 16, 2020 at 10:51:47AM +0100, Stefan Hajnoczi wrote: > v2: > * s/the the/the/ in documentation [Philippe] > * Assign nvdimm->unarmed earlier [Philippe] Ping > There is currently no way to back an NVDIMM with a read-only file so it c= an be > safely shared between untrusted guests. >=20 > Introduce an -object memory-backend-file,readonly=3Don|off option. >=20 > Julio Montes sent an earlier patch here: > https://patchew.org/QEMU/20190708211936.8037-1-julio.montes@intel.com/ >=20 > Eric Ernst requested this feature again for Kata Containers so I gave it = a try. >=20 > Stefan Hajnoczi (3): > memory: add readonly support to memory_region_init_ram_from_file() > hostmem-file: add readonly=3Don|off option > nvdimm: honor -object memory-backend-file,readonly=3Don option >=20 > docs/nvdimm.txt | 8 +++++++- > include/exec/memory.h | 2 ++ > include/exec/ram_addr.h | 5 +++-- > include/qemu/mmap-alloc.h | 2 ++ > backends/hostmem-file.c | 26 +++++++++++++++++++++++++- > exec.c | 18 +++++++++++------- > hw/mem/nvdimm.c | 4 ++++ > softmmu/memory.c | 7 +++++-- > util/mmap-alloc.c | 10 ++++++---- > util/oslib-posix.c | 2 +- > qemu-options.hx | 5 ++++- > 11 files changed, 70 insertions(+), 19 deletions(-) >=20 > --=20 > 2.26.2 >=20 --JcvBIhDvR6w3jUPA Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEyBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAl9rQmQACgkQnKSrs4Gr c8gPPwf4kcecxhzF6CIq+0/QEEtGe46YDUj57Mc12QbX6DTGwKwsof/HRxreZMiK JPJ8o2fiv6lStZde2kDGLVevBPureDr6Sj6b0rkB9axRrnqgc1BmQDfA/rwFRSfA XqCG875/e1zpuBBjLvOXYSQxhzWp7+hh87LbYjLvxkDH2SkZEmKy0MyexkDcsldQ KII5TMm78wV4YaX5jqdgkW+RKdYDgVfL/8e/zwVdLF24K5Cran9LLeaX/hRBbJ7K k22B79i6IFonDtlO8zfUAipzjQR53JOZA/s6DS8hFfhbS4rCZ5q+bdiritLmcDZT gWik2hFofWuBfqRiv2GKoBGBRNjY =M4/+ -----END PGP SIGNATURE----- --JcvBIhDvR6w3jUPA--