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Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend
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From: |
Marc-André Lureau |
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Subject: |
Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend |
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Date: |
Fri, 02 Jun 2017 14:36:18 +0000 |
On Fri, Jun 2, 2017 at 6:25 PM Daniel P. Berrange <address@hidden>
wrote:
> On Fri, Jun 02, 2017 at 06:12:20PM +0400, Marc-André Lureau wrote:
> > Add a new Linux-specific memory backend, similar to hostmem-file,
> > except that it doesn't need file path. It also try to enforce memory
> > sealing if available. It is thus slightly easier and secure, and is
> > compatible with transparent huge-pages since Linux 4.8.
>
> What about explicit huge pages ? They are the key scenario scenario where
> libvirt uses hostmem-file. AFAICT, there's no way to request explicit
> huge pages with memfd_create() syscall :-(
>
Sadly, I don't think it's yet possible either.
--
Marc-André Lureau
- [Qemu-devel] [PATCH v3 3/9] exec: split qemu_ram_alloc_from_file(), (continued)
- [Qemu-devel] [PATCH v3 3/9] exec: split qemu_ram_alloc_from_file(), Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 4/9] Add memory_region_init_ram_from_fd(), Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 5/9] ivshmem: use ram_from_fd(), Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 6/9] memory: remove memory_region_set_fd, Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 7/9] memfd: split qemu_memfd_alloc(), Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 8/9] Add memfd based hostmem, Marc-André Lureau, 2017/06/02
- [Qemu-devel] [PATCH v3 9/9] tests: use memfd in vhost-user-test, Marc-André Lureau, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend, Daniel P. Berrange, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend,
Marc-André Lureau <=