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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/* Copyright 2013-2015 IBM Corp. */
#ifndef __OPAL_DUMP_H
#define __OPAL_DUMP_H
/*
* Dump region ids
*
* 0x01 - 0x3F : OPAL
* 0x40 - 0x7F : Reserved for future use
* 0x80 - 0xFF : Kernel
*
*/
#define DUMP_REGION_OPAL_START 0x01
#define DUMP_REGION_OPAL_END 0x3F
#define DUMP_REGION_HOST_START OPAL_DUMP_REGION_HOST_START
#define DUMP_REGION_HOST_END OPAL_DUMP_REGION_HOST_END
#define DUMP_REGION_CONSOLE 0x01
#define DUMP_REGION_HBRT_LOG 0x02
#define DUMP_REGION_OPAL_MEMORY 0x03
#define DUMP_REGION_KERNEL 0x80
/* Mainstore memory to be captured by FSP SYSDUMP */
#define DUMP_TYPE_SYSDUMP 0xF5
/* Mainstore memory to preserve during IPL */
#define DUMP_TYPE_MPIPL 0x00
/*
* Memory Dump Source Table
*
* Format of this table is same as Memory Dump Source Table (MDST)
* defined in HDAT spec.
*/
struct mdst_table {
__be64 addr;
uint8_t data_region; /* DUMP_REGION_* */
uint8_t dump_type; /* DUMP_TYPE_* */
__be16 reserved;
__be32 size;
} __packed;
/* Memory dump destination table (MDDT) */
struct mddt_table {
__be64 addr;
uint8_t data_region;
uint8_t dump_type;
__be16 reserved;
__be32 size;
} __packed;
/*
* Memory dump result table (MDRT)
*
* List of the memory ranges that have been included in the dump. This table is
* filled by hostboot and passed to OPAL on second boot. OPAL/payload will use
* this table to extract the dump.
*/
struct mdrt_table {
__be64 src_addr;
__be64 dest_addr;
uint8_t data_region;
uint8_t dump_type;
__be16 reserved;
__be32 size;
__be64 padding;
} __packed;
/*
* Processor Dump Area
*
* This contains the information needed for having processor
* state captured during a platform dump.
*/
struct proc_dump_area {
__be32 thread_size; /* Size of each thread register entry */
#define PROC_DUMP_AREA_FORMAT_P9 0x1 /* P9 format */
uint8_t version; /* P9 - 0x1 */
uint8_t reserved[11];
__be64 alloc_addr; /* Destination memory to place register data */
__be32 reserved2;
__be32 alloc_size; /* Allocated size */
__be64 dest_addr; /* Destination address */
__be32 reserved3;
__be32 act_size; /* Actual data size */
} __packed;
struct proc_reg_data_hdr {
/* PIR value of the thread */
__be32 pir;
/* 0x00 - 0x0F - The corresponding stop state of the core */
uint8_t core_state;
uint8_t reserved[3];
uint32_t offset; /* Offset to Register Entries array */
uint32_t ecnt; /* Number of entries */
uint32_t esize; /* Alloc size of each array entry in bytes */
uint32_t eactsz; /* Actual size of each array entry in bytes */
} __packed;
/* Architected register data content */
#define ARCH_REG_TYPE_GPR 0x01
#define ARCH_REG_TYPE_SPR 0x02
struct proc_reg_data {
uint32_t reg_type; /* ARCH_REG_TYPE_* */
uint32_t reg_num;
uint64_t reg_val;
} __packed;
/* Metadata to capture before triggering MPIPL */
struct mpipl_metadata {
/* Crashing PIR is required to create OPAL dump */
uint32_t crashing_pir;
/* Kernel expects OPAL to presrve tag and pass it back via OPAL API */
uint64_t kernel_tag;
/* Post MPIPL kernel boot memory size */
uint64_t boot_mem_size;
} __packed;
/* init opal dump */
extern void opal_mpipl_init(void);
/* Save metadata before triggering MPIPL */
void opal_mpipl_save_crashing_pir(void);
/* Reserve memory to capture OPAL dump */
extern void opal_mpipl_reserve_mem(void);
/* Check MPIPL enabled or not */
extern bool is_mpipl_enabled(void);
#endif /* __OPAL_DUMP_H */
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