motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 09:43:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

include/hw/s390x: Add include files for common IPL structs

Browse source 
Currently, structures defined in both hw/s390x/ipl.h and pc-bios/s390-ccw/iplb.h
must be kept in sync, which is prone to error. Instead, create a new directory
at include/hw/s390x/ipl/ to contain the definitions that must be shared.

Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241020012953.1380075-14-jrossi@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Jared Rossi 2024-10-19 21:29:47 -04:00 • committed by Thomas Huth
parent 0181e23713
commit ba3658adc8
4 changed files with 130 additions and 183 deletions
Download patch file Download diff file Expand all files Collapse all files

123
include/hw/s390x/ipl/qipl.h Normal file
View file

@ -0,0 +1,123 @@
/*
* S/390 boot structures
*
* Copyright 2024 IBM Corp.
* Author(s): Jared Rossi <jrossi@linux.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 S390X_QIPL_H
#define S390X_QIPL_H
/* Boot Menu flags */
#define QIPL_FLAG_BM_OPTS_CMD 0x80
#define QIPL_FLAG_BM_OPTS_ZIPL 0x40
#define QIPL_ADDRESS 0xcc
#define LOADPARM_LEN 8
/*
* The QEMU IPL Parameters will be stored at absolute address
* 204 (0xcc) which means it is 32-bit word aligned but not
* double-word aligned. Placement of 64-bit data fields in this
* area must account for their alignment needs.
* The total size of the struct must never exceed 28 bytes.
*/
struct QemuIplParameters {
uint8_t qipl_flags;
uint8_t reserved1[3];
uint64_t reserved2;
uint32_t boot_menu_timeout;
uint8_t reserved3[12];
} QEMU_PACKED;
typedef struct QemuIplParameters QemuIplParameters;
struct IPLBlockPVComp {
uint64_t tweak_pref;
uint64_t addr;
uint64_t size;
} QEMU_PACKED;
typedef struct IPLBlockPVComp IPLBlockPVComp;
struct IPLBlockPV {
uint8_t reserved18[87]; /* 0x18 */
uint8_t version; /* 0x6f */
uint32_t reserved70; /* 0x70 */
uint32_t num_comp; /* 0x74 */
uint64_t pv_header_addr; /* 0x78 */
uint64_t pv_header_len; /* 0x80 */
struct IPLBlockPVComp components[0];
} QEMU_PACKED;
typedef struct IPLBlockPV IPLBlockPV;
struct IplBlockCcw {
uint8_t reserved0[85];
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[0];
} 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;
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[LOADPARM_LEN];
union {
IplBlockCcw ccw;
IplBlockFcp fcp;
IPLBlockPV pv;
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;
#endif