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Diana Craciun 1bb141ed5e vfio/fsl-mc: Add read/write support for fsl-mc devices
The software uses a memory-mapped I/O command interface (MC portals) to
communicate with the MC hardware. This command interface is used to
discover, enumerate, configure and remove DPAA2 objects. The DPAA2
objects use MSIs, so the command interface needs to be emulated
such that the correct MSI is configured in the hardware (the guest
has the virtual MSIs).

This patch is adding read/write support for fsl-mc devices. The mc
commands are emulated by the userspace. The host is just passing
the correct command to the hardware.

Also the current patch limits userspace to write complete
64byte command once and read 64byte response by one ioctl.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-10-12 11:33:27 -06:00
arch * A defconfig fix, from Daniel Díaz. 2020-09-20 15:06:43 -07:00
block
certs
crypto
Documentation powerpc fixes for 5.9 #5 2020-09-18 11:48:25 -07:00
drivers vfio/fsl-mc: Add read/write support for fsl-mc devices 2020-10-12 11:33:27 -06:00
fs fs/fs-writeback.c: adjust dirtytime_interval_handler definition to match prototype 2020-09-19 13:13:39 -07:00
include vfio/fsl-mc: Add VFIO framework skeleton for fsl-mc devices 2020-10-07 14:17:33 -06:00
init
ipc
kernel Fix the seccomp syscall rewriting so that trace and audit see the 2020-09-20 15:37:15 -07:00
lib kcsan: kconfig: move to menu 'Generic Kernel Debugging Instruments' 2020-09-19 13:13:39 -07:00
LICENSES
mm mm: fix wake_page_function() comment typos 2020-09-20 10:38:47 -07:00
net
samples
scripts kconfig: qconf: revive help message in the info view 2020-09-20 12:58:54 +09:00
security device_cgroup RCU warning fix from Amol Grover <frextrite@gmail.com> 2020-09-15 16:26:57 -07:00
sound sound fixes for 5.9-rc6 2020-09-18 11:38:08 -07:00
tools Fix noreturn detection for ignored sibling functions, from Josh 2020-09-20 15:31:04 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add older email addresses for Kees Cook 2020-09-19 13:13:38 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS vfio/fsl-mc: Add VFIO framework skeleton for fsl-mc devices 2020-10-07 14:17:33 -06:00
Makefile Linux 5.9-rc6 2020-09-20 16:33:55 -07:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.