Release 4.10 drivers/char/tpm/tpm_of.c
/*
* Copyright 2012 IBM Corporation
*
* Author: Ashley Lai <ashleydlai@gmail.com>
* Nayna Jain <nayna@linux.vnet.ibm.com>
*
* Maintained by: <tpmdd-devel@lists.sourceforge.net>
*
* Read the event log created by the firmware on PPC64
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <linux/slab.h>
#include <linux/of.h>
#include "tpm.h"
#include "tpm_eventlog.h"
int tpm_read_log_of(struct tpm_chip *chip)
{
struct device_node *np;
const u32 *sizep;
const u64 *basep;
struct tpm_bios_log *log;
log = &chip->log;
if (chip->dev.parent && chip->dev.parent->of_node)
np = chip->dev.parent->of_node;
else
return -ENODEV;
sizep = of_get_property(np, "linux,sml-size", NULL);
basep = of_get_property(np, "linux,sml-base", NULL);
if (sizep == NULL && basep == NULL)
return -ENODEV;
if (sizep == NULL || basep == NULL)
return -EIO;
if (*sizep == 0) {
dev_warn(&chip->dev, "%s: Event log area empty\n", __func__);
return -EIO;
}
log->bios_event_log = kmalloc(*sizep, GFP_KERNEL);
if (!log->bios_event_log)
return -ENOMEM;
log->bios_event_log_end = log->bios_event_log + *sizep;
memcpy(log->bios_event_log, __va(*basep), *sizep);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ashley lai | ashley lai | 111 | 56.63% | 1 | 12.50% |
| nayna jain | nayna jain | 47 | 23.98% | 4 | 50.00% |
| jason gunthorpe | jason gunthorpe | 35 | 17.86% | 1 | 12.50% |
| hon ching (vicky) lo | hon ching (vicky) lo | 2 | 1.02% | 1 | 12.50% |
| colin king | colin king | 1 | 0.51% | 1 | 12.50% |
| Total | 196 | 100.00% | 8 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ashley lai | ashley lai | 123 | 58.85% | 1 | 12.50% |
| nayna jain | nayna jain | 48 | 22.97% | 4 | 50.00% |
| jason gunthorpe | jason gunthorpe | 35 | 16.75% | 1 | 12.50% |
| hon ching (vicky) lo | hon ching (vicky) lo | 2 | 0.96% | 1 | 12.50% |
| colin king | colin king | 1 | 0.48% | 1 | 12.50% |
| Total | 209 | 100.00% | 8 | 100.00% |
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