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The older versions of remote system update (RSU) firmware don't support
retry and notify features then the kernel module dies when it queries
the RSU retry counter or performs notify operation.
Update the Intel service layer and RSU drivers to be compatible with
all versions of RSU firmware.
Reported-by: Radu Barcau <radu.bacrau@intel.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Richard Gong <richard.gong@intel.com>
Link: https://lore.kernel.org/r/1572884676-1385-1-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Extend Intel Stratix10 service layer driver to support new RSU notify and
MAX_RETRY with watchdog event.
RSU is used to provide our customers with protection against loading bad
bitstream onto their devices when those devices are booting from flash
RSU notifies provides users with an API to notify the firmware of the
state of hard processor system.
To deal with watchdog event, RSU provides a way for user to retry the
current running image several times before giving up and starting normal
RSU failover flow.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org>
Link: https://lore.kernel.org/r/1567516701-26026-2-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reserve ECC Double Bit Error SMC call to alert U-Boot that a DBE has
occurred. Move the call from local EDAC header file to a common header.
[ bp: Merge the two patches. ]
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org> # firmware
Cc: Greg KH <greg@kroah.com>
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@kernel.org
Link: https://lkml.kernel.org/r/1553870639-23895-1-git-send-email-thor.thayer@linux.intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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Extend Intel Stratix10 service layer to support the second service layer
client, Remote Status Update (RSU).
RSU is used to provide our customers with protection against loading bad
bitstreams onto their devices when those devices are booting from flash.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some features of the Intel Stratix10 SoC require a level of privilege
higher than the kernel is granted. Such secure features include
FPGA programming. In terms of the ARMv8 architecture, the kernel runs
at Exception Level 1 (EL1), access to the features requires
Exception Level 3 (EL3).
The Intel Stratix10 SoC service layer provides an in kernel API for
drivers to request access to the secure features. The requests are queued
and processed one by one. ARM’s SMCCC is used to pass the execution
of the requests on to a secure monitor (EL3).
The header file stratix10-sve-client.h defines the interface between
service providers (FPGA manager is one of them) and service layer.
The header file stratix10-smc.h defines the secure monitor call (SMC)
message protocols used for service layer driver in normal world
(EL1) to communicate with secure monitor SW in secure monitor exception
level 3 (EL3).
Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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