mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-12 14:05:56 +00:00
bd1badf457
Insert the LOADPARM value to the IPL Information Parameter Block. An IPL Information Parameter Block is created when "bootindex" is specified for a device. If a user specifies "loadparm=", then we store the loadparm value in the created IPIB for that boot device. Initial patch from Eugene (jno) Dvurechenski. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
/*
|
|
* s390 IPL device
|
|
*
|
|
* Copyright 2015 IBM Corp.
|
|
* Author(s): Zhang Fan <bjfanzh@cn.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at
|
|
* your option) any later version. See the COPYING file in the top-level
|
|
* directory.
|
|
*/
|
|
|
|
#ifndef HW_S390_IPL_H
|
|
#define HW_S390_IPL_H
|
|
|
|
#include "hw/qdev.h"
|
|
#include "cpu.h"
|
|
|
|
struct IplBlockCcw {
|
|
uint64_t netboot_start_addr;
|
|
uint8_t reserved0[77];
|
|
uint8_t ssid;
|
|
uint16_t devno;
|
|
uint8_t vm_flags;
|
|
uint8_t reserved3[3];
|
|
uint32_t vm_parm_len;
|
|
uint8_t nss_name[8];
|
|
uint8_t vm_parm[64];
|
|
uint8_t reserved4[8];
|
|
} QEMU_PACKED;
|
|
typedef struct IplBlockCcw IplBlockCcw;
|
|
|
|
struct IplBlockFcp {
|
|
uint8_t reserved1[305 - 1];
|
|
uint8_t opt;
|
|
uint8_t reserved2[3];
|
|
uint16_t reserved3;
|
|
uint16_t devno;
|
|
uint8_t reserved4[4];
|
|
uint64_t wwpn;
|
|
uint64_t lun;
|
|
uint32_t bootprog;
|
|
uint8_t reserved5[12];
|
|
uint64_t br_lba;
|
|
uint32_t scp_data_len;
|
|
uint8_t reserved6[260];
|
|
uint8_t scp_data[];
|
|
} QEMU_PACKED;
|
|
typedef struct IplBlockFcp IplBlockFcp;
|
|
|
|
struct IplBlockQemuScsi {
|
|
uint32_t lun;
|
|
uint16_t target;
|
|
uint16_t channel;
|
|
uint8_t reserved0[77];
|
|
uint8_t ssid;
|
|
uint16_t devno;
|
|
} QEMU_PACKED;
|
|
typedef struct IplBlockQemuScsi IplBlockQemuScsi;
|
|
|
|
#define DIAG308_FLAGS_LP_VALID 0x80
|
|
|
|
union IplParameterBlock {
|
|
struct {
|
|
uint32_t len;
|
|
uint8_t reserved0[3];
|
|
uint8_t version;
|
|
uint32_t blk0_len;
|
|
uint8_t pbt;
|
|
uint8_t flags;
|
|
uint16_t reserved01;
|
|
uint8_t loadparm[8];
|
|
union {
|
|
IplBlockCcw ccw;
|
|
IplBlockFcp fcp;
|
|
IplBlockQemuScsi scsi;
|
|
};
|
|
} QEMU_PACKED;
|
|
struct {
|
|
uint8_t reserved1[110];
|
|
uint16_t devno;
|
|
uint8_t reserved2[88];
|
|
uint8_t reserved_ext[4096 - 200];
|
|
} QEMU_PACKED;
|
|
} QEMU_PACKED;
|
|
typedef union IplParameterBlock IplParameterBlock;
|
|
|
|
int s390_ipl_set_loadparm(uint8_t *loadparm);
|
|
void s390_ipl_update_diag308(IplParameterBlock *iplb);
|
|
void s390_ipl_prepare_cpu(S390CPU *cpu);
|
|
IplParameterBlock *s390_ipl_get_iplb(void);
|
|
void s390_reipl_request(void);
|
|
|
|
#define TYPE_S390_IPL "s390-ipl"
|
|
#define S390_IPL(obj) OBJECT_CHECK(S390IPLState, (obj), TYPE_S390_IPL)
|
|
|
|
struct S390IPLState {
|
|
/*< private >*/
|
|
DeviceState parent_obj;
|
|
uint64_t start_addr;
|
|
uint64_t compat_start_addr;
|
|
uint64_t bios_start_addr;
|
|
uint64_t compat_bios_start_addr;
|
|
bool enforce_bios;
|
|
IplParameterBlock iplb;
|
|
bool iplb_valid;
|
|
bool reipl_requested;
|
|
bool netboot;
|
|
|
|
/*< public >*/
|
|
char *kernel;
|
|
char *initrd;
|
|
char *cmdline;
|
|
char *firmware;
|
|
char *netboot_fw;
|
|
uint8_t cssid;
|
|
uint8_t ssid;
|
|
uint16_t devno;
|
|
bool iplbext_migration;
|
|
};
|
|
typedef struct S390IPLState S390IPLState;
|
|
|
|
#define S390_IPL_TYPE_FCP 0x00
|
|
#define S390_IPL_TYPE_CCW 0x02
|
|
#define S390_IPL_TYPE_QEMU_SCSI 0xff
|
|
|
|
#define S390_IPLB_HEADER_LEN 8
|
|
#define S390_IPLB_MIN_CCW_LEN 200
|
|
#define S390_IPLB_MIN_FCP_LEN 384
|
|
#define S390_IPLB_MIN_QEMU_SCSI_LEN 200
|
|
|
|
static inline bool iplb_valid_len(IplParameterBlock *iplb)
|
|
{
|
|
return be32_to_cpu(iplb->len) <= sizeof(IplParameterBlock);
|
|
}
|
|
|
|
static inline bool iplb_valid_ccw(IplParameterBlock *iplb)
|
|
{
|
|
return be32_to_cpu(iplb->len) >= S390_IPLB_MIN_CCW_LEN &&
|
|
iplb->pbt == S390_IPL_TYPE_CCW;
|
|
}
|
|
|
|
static inline bool iplb_valid_fcp(IplParameterBlock *iplb)
|
|
{
|
|
return be32_to_cpu(iplb->len) >= S390_IPLB_MIN_FCP_LEN &&
|
|
iplb->pbt == S390_IPL_TYPE_FCP;
|
|
}
|
|
|
|
#endif
|