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| /openbmc/linux/drivers/virt/nitro_enclaves/ |
| H A D | ne_pci_dev.c | diff ad2b6980d0d3c7707de084f12d75f673af5fd017 Mon Sep 21 07:17:19 CDT 2020 Andra Paraschiv <andraprs@amazon.com> nitro_enclaves: Handle PCI device command requests
The Nitro Enclaves PCI device exposes a MMIO space that this driver
uses to submit command requests and to receive command replies e.g. for
enclave creation / termination or setting enclave resources.
Add logic for handling PCI device command requests based on the given
command type.
Register an MSI-X interrupt vector for command reply notifications to
handle this type of communication events.
Changelog
v9 -> v10
* Update commit message to include the changelog before the SoB tag(s).
v8 -> v9
* No changes.
v7 -> v8
* Update function signature for submit request and retrive reply
functions as they only returned 0, no error code.
* Include command type value in the error logs of ne_do_request().
v6 -> v7
* No changes.
v5 -> v6
* Update documentation to kernel-doc format.
v4 -> v5
* Remove sanity checks for situations that shouldn't happen, only if
buggy system or broken logic at all.
v3 -> v4
* Use dev_err instead of custom NE log pattern.
* Return IRQ_NONE when interrupts are not handled.
v2 -> v3
* Remove the WARN_ON calls.
* Update static calls sanity checks.
* Remove "ratelimited" from the logs that are not in the ioctl call
paths.
v1 -> v2
* Add log pattern for NE.
* Remove the BUG_ON calls.
* Update goto labels to match their purpose.
* Add fix for kbuild report:
https://lore.kernel.org/lkml/202004231644.xTmN4Z1z%25lkp@intel.com/
Reviewed-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Alexandru-Catalin Vasile <lexnv@amazon.com>
Signed-off-by: Andra Paraschiv <andraprs@amazon.com>
Link: https://lore.kernel.org/r/20200921121732.44291-6-andraprs@amazon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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