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[Qemu-devel] [vhost] vhost_get_vq_desc, vq->iov mapping

From: Vasile Catalin-B50542
Subject: [Qemu-devel] [vhost] vhost_get_vq_desc, vq->iov mapping
Date: Wed, 6 May 2015 13:01:51 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

From what I know, qemu and vhost backends use some functions in order to access the memory between the guest and the backend.
From what I see, vhost does this with vhost_get_vq_desc().
How much do vq->iov mappings remain valid? Does it get unmapped at some time (you could answer me within vhost-net or vhost-scsi
as examples)?

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