107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
|
/*
|
||
|
|
* pcie_aer.h
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
|
||
|
|
* VA Linux Systems Japan K.K.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef QEMU_PCIE_AER_H
|
||
|
|
#define QEMU_PCIE_AER_H
|
||
|
|
|
||
|
|
#include "hw.h"
|
||
|
|
|
||
|
|
/* definitions which PCIExpressDevice uses */
|
||
|
|
|
||
|
|
/* AER log */
|
||
|
|
struct PCIEAERLog {
|
||
|
|
/* This structure is saved/loaded.
|
||
|
|
So explicitly size them instead of unsigned int */
|
||
|
|
|
||
|
|
/* the number of currently recorded log in log member */
|
||
|
|
uint16_t log_num;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The maximum number of the log. Errors can be logged up to this.
|
||
|
|
*
|
||
|
|
* This is configurable property.
|
||
|
|
* The specified value will be clipped down to PCIE_AER_LOG_MAX_LIMIT
|
||
|
|
* to avoid unreasonable memory usage.
|
||
|
|
* I bet that 128 log size would be big enough, otherwise too many errors
|
||
|
|
* for system to function normaly. But could consecutive errors occur?
|
||
|
|
*/
|
||
|
|
#define PCIE_AER_LOG_MAX_DEFAULT 8
|
||
|
|
#define PCIE_AER_LOG_MAX_LIMIT 128
|
||
|
|
#define PCIE_AER_LOG_MAX_UNSET 0xffff
|
||
|
|
uint16_t log_max;
|
||
|
|
|
||
|
|
/* Error log. log_max-sized array */
|
||
|
|
PCIEAERErr *log;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* aer error message: error signaling message has only error sevirity and
|
||
|
|
source id. See 2.2.8.3 error signaling messages */
|
||
|
|
struct PCIEAERMsg {
|
||
|
|
/*
|
||
|
|
* PCI_ERR_ROOT_CMD_{COR, NONFATAL, FATAL}_EN
|
||
|
|
* = PCI_EXP_DEVCTL_{CERE, NFERE, FERE}
|
||
|
|
*/
|
||
|
|
uint32_t severity;
|
||
|
|
|
||
|
|
uint16_t source_id; /* bdf */
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline bool
|
||
|
|
pcie_aer_msg_is_uncor(const PCIEAERMsg *msg)
|
||
|
|
{
|
||
|
|
return msg->severity == PCI_ERR_ROOT_CMD_NONFATAL_EN ||
|
||
|
|
msg->severity == PCI_ERR_ROOT_CMD_FATAL_EN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* error */
|
||
|
|
struct PCIEAERErr {
|
||
|
|
uint32_t status; /* error status bits */
|
||
|
|
uint16_t source_id; /* bdf */
|
||
|
|
|
||
|
|
#define PCIE_AER_ERR_IS_CORRECTABLE 0x1 /* correctable/uncorrectable */
|
||
|
|
#define PCIE_AER_ERR_MAYBE_ADVISORY 0x2 /* maybe advisory non-fatal */
|
||
|
|
#define PCIE_AER_ERR_HEADER_VALID 0x4 /* TLP header is logged */
|
||
|
|
#define PCIE_AER_ERR_TLP_PREFIX_PRESENT 0x8 /* TLP Prefix is logged */
|
||
|
|
uint16_t flags;
|
||
|
|
|
||
|
|
uint32_t header[4]; /* TLP header */
|
||
|
|
uint32_t prefix[4]; /* TLP header prefix */
|
||
|
|
};
|
||
|
|
|
||
|
|
extern const VMStateDescription vmstate_pcie_aer_log;
|
||
|
|
|
||
|
|
int pcie_aer_init(PCIDevice *dev, uint16_t offset);
|
||
|
|
void pcie_aer_exit(PCIDevice *dev);
|
||
|
|
void pcie_aer_write_config(PCIDevice *dev,
|
||
|
|
uint32_t addr, uint32_t val, int len);
|
||
|
|
|
||
|
|
/* aer root port */
|
||
|
|
void pcie_aer_root_set_vector(PCIDevice *dev, unsigned int vector);
|
||
|
|
void pcie_aer_root_init(PCIDevice *dev);
|
||
|
|
void pcie_aer_root_reset(PCIDevice *dev);
|
||
|
|
void pcie_aer_root_write_config(PCIDevice *dev,
|
||
|
|
uint32_t addr, uint32_t val, int len,
|
||
|
|
uint32_t root_cmd_prev);
|
||
|
|
|
||
|
|
/* error injection */
|
||
|
|
int pcie_aer_inject_error(PCIDevice *dev, const PCIEAERErr *err);
|
||
|
|
|
||
|
|
#endif /* QEMU_PCIE_AER_H */
|