On 07/05/2018 07:25 PM, Jason J. Herne wrote:
> From: "Jason J. Herne" <jjhe...@linux.vnet.ibm.com>
>
> Create a new header for basic architecture specific definitions and add a
> mapping of low core memory. This mapping will be used by the real dasd boot
> process.
>
> Signed-off-by: Jason J. Herne <jjhe...@linux.vnet.ibm.com>
> Signed-off-by: Jason J. Herne <jjhe...@linux.ibm.com>
> ---
> pc-bios/s390-ccw/main.c | 2 +
> pc-bios/s390-ccw/s390-arch.h | 100
> +++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 102 insertions(+)
> create mode 100644 pc-bios/s390-ccw/s390-arch.h
>
> diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
> index e5174fb..20c30c6 100644
> --- a/pc-bios/s390-ccw/main.c
> +++ b/pc-bios/s390-ccw/main.c
> @@ -9,6 +9,7 @@
> */
>
> #include "libc.h"
> +#include "s390-arch.h"
> #include "s390-ccw.h"
> #include "cio.h"
> #include "virtio.h"
> @@ -19,6 +20,7 @@ static char loadparm_str[LOADPARM_LEN + 1] = { 0, 0, 0, 0,
> 0, 0, 0, 0, 0 };
> QemuIplParameters qipl;
> IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE)));
> static bool have_iplb;
> +LowCore *lowcore = 0;
>
> #define LOADPARM_PROMPT "PROMPT "
> #define LOADPARM_EMPTY " "
> diff --git a/pc-bios/s390-ccw/s390-arch.h b/pc-bios/s390-ccw/s390-arch.h
> new file mode 100644
> index 0000000..9074ba2
> --- /dev/null
> +++ b/pc-bios/s390-ccw/s390-arch.h
> @@ -0,0 +1,100 @@
> +/*
> + * S390 Basic Architecture
> + *
> + * Copyright (c) 2018 Jason J. Herne <jjhe...@us.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 S390_ARCH_H
> +#define S390_ARCH_H
> +
> +typedef struct PSW {
> + uint64_t mask;
> + uint64_t addr;
> +} __attribute__ ((packed, aligned(8))) PSW;
> +
> +/* Older PSW format used by LPSW instruction */
> +typedef struct PSWLegacy {
> + uint32_t mask;
> + uint32_t addr;
> +} __attribute__ ((packed, aligned(8))) PSWLegacy;
> +
> +/* s390 psw bit masks */
> +#define PSW_MASK_IOINT 0x0200000000000000ULL
> +#define PSW_MASK_WAIT 0x0002000000000000ULL
> +#define PSW_MASK_EAMODE 0x0000000100000000ULL
> +#define PSW_MASK_BAMODE 0x0000000080000000ULL
> +#define PSW_MASK_ZMODE (PSW_MASK_EAMODE | PSW_MASK_BAMODE)
> +
> +/* Low core mapping */
> +typedef struct LowCore {
> + /* prefix area: defined by architecture */
> + uint64_t ipl_psw; /* 0x000 */
> + uint32_t ccw1[2]; /* 0x008 */
> + uint32_t ccw2[2]; /* 0x010 */
> + uint8_t pad1[0x80 - 0x18]; /* 0x018 */
> + uint32_t ext_params; /* 0x080 */
> + uint16_t cpu_addr; /* 0x084 */
> + uint16_t ext_int_code; /* 0x086 */
> + uint16_t svc_ilen; /* 0x088 */
> + uint16_t svc_code; /* 0x08a */
> + uint16_t pgm_ilen; /* 0x08c */
> + uint16_t pgm_code; /* 0x08e */
> + uint32_t data_exc_code; /* 0x090 */
> + uint16_t mon_class_num; /* 0x094 */
> + uint16_t per_perc_atmid; /* 0x096 */
> + uint64_t per_address; /* 0x098 */
> + uint8_t exc_access_id; /* 0x0a0 */
> + uint8_t per_access_id; /* 0x0a1 */
> + uint8_t op_access_id; /* 0x0a2 */
> + uint8_t ar_access_id; /* 0x0a3 */
> + uint8_t pad2[0xA8 - 0xA4]; /* 0x0a4 */
> + uint64_t trans_exc_code; /* 0x0a8 */
> + uint64_t monitor_code; /* 0x0b0 */
> + uint16_t subchannel_id; /* 0x0b8 */
> + uint16_t subchannel_nr; /* 0x0ba */
> + uint32_t io_int_parm; /* 0x0bc */
> + uint32_t io_int_word; /* 0x0c0 */
> + uint8_t pad3[0xc8 - 0xc4]; /* 0x0c4 */
> + uint32_t stfl_fac_list; /* 0x0c8 */
> + uint8_t pad4[0xe8 - 0xcc]; /* 0x0cc */
> + uint64_t mcic; /* 0x0e8 */
> + uint8_t pad5[0xf4 - 0xf0]; /* 0x0f0 */
> + uint32_t external_damage_code; /* 0x0f4 */
> + uint64_t failing_storage_address; /* 0x0f8 */
> + uint8_t pad6[0x110 - 0x100]; /* 0x100 */
> + uint64_t per_breaking_event_addr; /* 0x110 */
> + uint8_t pad7[0x120 - 0x118]; /* 0x118 */
> + PSW restart_old_psw; /* 0x120 */
> + PSW external_old_psw; /* 0x130 */
> + PSW svc_old_psw; /* 0x140 */
> + PSW program_old_psw; /* 0x150 */
> + PSW mcck_old_psw; /* 0x160 */
> + PSW io_old_psw; /* 0x170 */
> + uint8_t pad8[0x1a0 - 0x180]; /* 0x180 */
> + PSW restart_new_psw; /* 0x1a0 */
> + PSW external_new_psw; /* 0x1b0 */
> + PSW svc_new_psw; /* 0x1c0 */
> + PSW program_new_psw; /* 0x1d0 */
> + PSW mcck_new_psw; /* 0x1e0 */
> + PSW io_new_psw; /* 0x1f0 */
> + PSW return_psw; /* 0x200 */
> + uint8_t irb[64]; /* 0x210 */
> + uint64_t sync_enter_timer; /* 0x250 */
> + uint64_t async_enter_timer; /* 0x258 */
> + uint64_t exit_timer; /* 0x260 */
> + uint64_t last_update_timer; /* 0x268 */
> + uint64_t user_timer; /* 0x270 */
> + uint64_t system_timer; /* 0x278 */
> + uint64_t last_update_clock; /* 0x280 */
> + uint64_t steal_clock; /* 0x288 */
> + PSW return_mcck_psw; /* 0x290 */
> + uint8_t pad9[0xc00 - 0x2a0]; /* 0x2a0 */
> +} __attribute__((packed)) LowCore;
Please use
__attribute__((packed, aligned(8192))) LowCore;
as gcc 8 will complain otherwise.
