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2cf1e703f0
Adding userspace support for the MC (Management Complex) means exporting an ioctl capable device file representing the root resource container. This new functionality in the fsl-mc bus driver intends to provide userspace applications an interface to interact with the MC firmware. Commands that are composed in userspace are sent to the MC firmware through the FSL_MC_SEND_MC_COMMAND ioctl. By default the implicit MC I/O portal is used for this operation, but if the implicit one is busy, a dynamic portal is allocated and then freed upon execution. The command received through the ioctl interface is checked against a known whitelist of accepted MC commands. Commands that attempt a change in hardware configuration will need CAP_NET_ADMIN, while commands used in debugging do not need it. Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20210114170752.2927915-4-ciorneiioana@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
21 lines
478 B
Makefile
21 lines
478 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Freescale Management Complex (MC) bus drivers
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#
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# Copyright (C) 2014 Freescale Semiconductor, Inc.
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#
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obj-$(CONFIG_FSL_MC_BUS) += mc-bus-driver.o
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mc-bus-driver-objs := fsl-mc-bus.o \
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mc-sys.o \
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mc-io.o \
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dpbp.o \
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dpcon.o \
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dprc.o \
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dprc-driver.o \
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fsl-mc-allocator.o \
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fsl-mc-msi.o \
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dpmcp.o
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# MC userspace support
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obj-$(CONFIG_FSL_MC_UAPI_SUPPORT) += fsl-mc-uapi.o
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