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Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels |
Date: |
Wed, 04 Feb 2015 16:22:26 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
On 04/02/2015 16:11, Daniel P. Berrange wrote:
> > For GIO/GIOChannel, you'd have to choose between zerocopy and many
> > syscalls, or one copy and few syscalls. Since every page has two iov
> > entries, one of which is just 8 bytes, one copy and few syscalls is
> > probably faster---but still only half the speed of writev.
>
> That could be an argument in favour of defining a QEMUIOChannel
> instead. The use of GIOChannel is only compelling if we gain some
> significant benefit from using the standard glib API in this scenario
> and I'm not clear that we really do, other than developer familiarity
> with glib.
GIOChannel's advantage is that---even though it may not be used for
regular migration---integration with chardev would be really easy.
> GIO could be compelling if we could leverage its TLS integration
I agree.
Paolo
- [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Paolo Bonzini, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Paolo Bonzini, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Paolo Bonzini, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Paolo Bonzini, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels,
Paolo Bonzini <=
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Paolo Bonzini, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Stefan Hajnoczi, 2015/02/05
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Cornelia Huck, 2015/02/05
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Peter Maydell, 2015/02/05
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Markus Armbruster, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Peter Maydell, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Markus Armbruster, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Daniel P. Berrange, 2015/02/04
- Re: [Qemu-devel] RFC: Universal encryption on QEMU I/O channels, Peter Maydell, 2015/02/04