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Subject[PATCH v7 00/13] introduce the Xen PV Calls frontend
Hi all,

this series introduces the frontend for the newly introduced PV Calls
procotol.

PV Calls is a paravirtualized protocol that allows the implementation of
a set of POSIX functions in a different domain. The PV Calls frontend
sends POSIX function calls to the backend, which implements them and
returns a value to the frontend and acts on the function call.

For more information about PV Calls, please read:

https://xenbits.xen.org/docs/unstable/misc/pvcalls.html

This patch series only implements the frontend driver. It doesn't
attempt to redirect POSIX calls to it. The functions exported in
pvcalls-front.h are meant to be used for that. A separate patch series
will be sent to use them and hook them into the system.


Changes in v7:
- define sock_mapping earlier
- make sure that every patch in the series builds
- call pvcalls_front_free_map(map->passive.accept_map) without the
socket_lock
- remove now unused bool lock parameter to pvcalls_front_free_map
- XEN_PVCALLS_FRONTEND: default n and select XEN_XENBUS_FRONTEND


Stefano Stabellini (13):
xen/pvcalls: introduce the pvcalls xenbus frontend
xen/pvcalls: implement frontend disconnect
xen/pvcalls: connect to the backend
xen/pvcalls: implement socket command and handle events
xen/pvcalls: implement connect command
xen/pvcalls: implement bind command
xen/pvcalls: implement listen command
xen/pvcalls: implement accept command
xen/pvcalls: implement sendmsg
xen/pvcalls: implement recvmsg
xen/pvcalls: implement poll command
xen/pvcalls: implement release command
xen: introduce a Kconfig option to enable the pvcalls frontend

drivers/xen/Kconfig | 11 +
drivers/xen/Makefile | 1 +
drivers/xen/pvcalls-front.c | 1271 +++++++++++++++++++++++++++++++++++++++++++
drivers/xen/pvcalls-front.h | 28 +
4 files changed, 1311 insertions(+)
create mode 100644 drivers/xen/pvcalls-front.c
create mode 100644 drivers/xen/pvcalls-front.h

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