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Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers a
From: |
Rusty Russell |
Subject: |
Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed |
Date: |
Fri, 14 Dec 2012 11:36:30 +1030 |
User-agent: |
Notmuch/0.14 (http://notmuchmail.org) Emacs/23.4.1 (i686-pc-linux-gnu) |
Anthony Liguori <address@hidden> writes:
> Yes, take a look at the series I sent out that scrubs all of this to
> just send the index and the addresses of the element.
>
> We technically should save the addresses and sizes too. It makes it a
> heck of a lot safer then re-reading guest memory since we do some
> validation on the size of the sg elements.
Not really.
The guest puts the descriptors in the ring and leaves them there until
the device acks. If it changes them once they're exposed but before
they're acked, it can get either before or after version, and always
could.
Cheers,
Rusty.
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, (continued)
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Anthony Liguori, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed,
Rusty Russell <=
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/14
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Anthony Liguori, 2012/12/16
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Paolo Bonzini, 2012/12/13
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Kevin Wolf, 2012/12/13
- Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/16
Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed, Michael S. Tsirkin, 2012/12/12