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platform_data/mlxreg: Add new field for secured access

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Extend structure 'mlxreg_core_data' with the field "secured". The
purpose of this field is to restrict access to some attributes, if
kernel is configured with security options, like:
LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY.
Access to some attributes, which for example, allow burning of some
hardware components, like FPGA, CPLD, SPI, etcetera can break the
system. In case user does not want to allow such access, it can disable
it by setting security options.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20211002093238.3771419-7-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Vadim Pasternak 2021-10-02 12:32:35 +03:00 committed by Hans de Goede
parent bbfd79c681
commit 9d93d7877c
1 changed files with 1 additions and 0 deletions
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include/linux/platform_data/mlxreg.h
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@ -150,6 +150,7 @@ struct mlxreg_core_data {
bool attached;
u8 regnum;
u8 slot;
u8 secured;
};
/**