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Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fal
From: |
Rafael David Tinoco |
Subject: |
Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism |
Date: |
Tue, 4 Oct 2016 12:29:10 -0300 |
> On Oct 04, 2016, at 10:50, Marc-André Lureau <address@hidden> wrote:
>
> What about having a single config parameter as a place to put all vhost logs
> for all drives for a single instance ? Remove the memfd implementation with
> all the memfd shared_memory option ? Replace it with a
> open+unlink+ftruncate+mmap approach only.
>
>
> I fail to see your point, memfd is superior to open+unlink and has other
> advantages with sealing etc.
I was just summarising needs based on previous statement from Daniel:
> This makes me wonder about the memfd_create() code path too - we'll
> again not want that external process to be granted access to arbitrary
> FDs of QEMU's and I'm not sure of a way to get the memfd FD to have
> a specific label. So I think it is possible that when using libvirt
> we'll want the ability to tell QEMU to *always* use an explicit file
> in a path libvirt specifies, and never use memfd even if available.
>
> Regards,
> Daniel
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, (continued)
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/03
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/03
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Daniel P. Berrange, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Marc-André Lureau, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Daniel P. Berrange, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Marc-André Lureau, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Daniel P. Berrange, 2016/10/04
- Message not available
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Marc-André Lureau, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism,
Rafael David Tinoco <=
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/20
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/20
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Marc-André Lureau, 2016/10/21
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Marc-André Lureau, 2016/10/04
- Re: [Qemu-devel] [Bug 1626972] Re: [PATCH] util: secure memfd_create fallback mechanism, Rafael David Tinoco, 2016/10/04