Sergio Lopez 90309b5106 vm-virtio: queue: Add methods to switch a descriptor context ...

"DescriptorChain"s are tied to the lifetime of the referenced
GuestMemoryMmap object (for good reasons), but sometimes (i.e., when
processing descriptors from different contexts) we may need to switch
them to point a different GuestMemoryMmap.

Here we introduce the structure DescriptorHead, which holds the data
needed to rebuild a DescriptorChain, the method "get_head" which
returns the DescriptorHead for a DescriptorChain, and the method
"new_from_head", which allows to create a new DescriptorChain with a
DescriptorHead and a new reference to a GuestMemoryMmap.

Signed-off-by: Sergio Lopez <slp@redhat.com>

2020-03-13 15:20:34 +00:00

..

src

vm-virtio: queue: Add methods to switch a descriptor context

2020-03-13 15:20:34 +00:00

Cargo.toml

build: Bump linux-loader and vm-memory dependencies

2020-03-05 11:01:30 +01:00