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95ca2cb579
Store Hypervisor Information is an emulated z/VM instruction that provides a guest with basic information about the layers it is running on. This includes information about the cpu configuration of both the machine and the lpar, as well as their names, machine model and machine type. This information enables an application to determine the maximum capacity of CPs and IFLs available to software. The instruction is available whenever the facility bit 74 is set, otherwise executing it results in an operation exception. It is important to check the validity flags in the sections before using data from any structure member. It is not guaranteed that all members will be valid on all machines / machine configurations. Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
230 lines
4.6 KiB
C
230 lines
4.6 KiB
C
/*
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* s390 diagnose functions
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*
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* Copyright IBM Corp. 2007
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* Author(s): Michael Holzheu <holzheu@de.ibm.com>
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*/
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#ifndef _ASM_S390_DIAG_H
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#define _ASM_S390_DIAG_H
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#include <linux/percpu.h>
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enum diag_stat_enum {
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DIAG_STAT_X008,
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DIAG_STAT_X00C,
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DIAG_STAT_X010,
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DIAG_STAT_X014,
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DIAG_STAT_X044,
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DIAG_STAT_X064,
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DIAG_STAT_X09C,
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DIAG_STAT_X0DC,
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DIAG_STAT_X204,
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DIAG_STAT_X210,
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DIAG_STAT_X224,
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DIAG_STAT_X250,
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DIAG_STAT_X258,
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DIAG_STAT_X288,
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DIAG_STAT_X2C4,
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DIAG_STAT_X2FC,
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DIAG_STAT_X304,
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DIAG_STAT_X308,
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DIAG_STAT_X500,
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NR_DIAG_STAT
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};
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void diag_stat_inc(enum diag_stat_enum nr);
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void diag_stat_inc_norecursion(enum diag_stat_enum nr);
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/*
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* Diagnose 10: Release page range
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*/
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static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
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{
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unsigned long start_addr, end_addr;
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start_addr = start_pfn << PAGE_SHIFT;
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end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
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diag_stat_inc(DIAG_STAT_X010);
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asm volatile(
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"0: diag %0,%1,0x10\n"
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"1:\n"
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EX_TABLE(0b, 1b)
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EX_TABLE(1b, 1b)
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: : "a" (start_addr), "a" (end_addr));
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}
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/*
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* Diagnose 14: Input spool file manipulation
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*/
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extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
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/*
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* Diagnose 210: Get information about a virtual device
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*/
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struct diag210 {
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u16 vrdcdvno; /* device number (input) */
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u16 vrdclen; /* data block length (input) */
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u8 vrdcvcla; /* virtual device class (output) */
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u8 vrdcvtyp; /* virtual device type (output) */
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u8 vrdcvsta; /* virtual device status (output) */
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u8 vrdcvfla; /* virtual device flags (output) */
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u8 vrdcrccl; /* real device class (output) */
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u8 vrdccrty; /* real device type (output) */
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u8 vrdccrmd; /* real device model (output) */
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u8 vrdccrft; /* real device feature (output) */
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} __attribute__((packed, aligned(4)));
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extern int diag210(struct diag210 *addr);
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/* bit is set in flags, when physical cpu info is included in diag 204 data */
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#define DIAG204_LPAR_PHYS_FLG 0x80
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#define DIAG204_LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */
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#define DIAG204_CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */
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/* diag 204 subcodes */
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enum diag204_sc {
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DIAG204_SUBC_STIB4 = 4,
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DIAG204_SUBC_RSI = 5,
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DIAG204_SUBC_STIB6 = 6,
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DIAG204_SUBC_STIB7 = 7
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};
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/* The two available diag 204 data formats */
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enum diag204_format {
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DIAG204_INFO_SIMPLE = 0,
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DIAG204_INFO_EXT = 0x00010000
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};
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enum diag204_cpu_flags {
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DIAG204_CPU_ONLINE = 0x20,
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DIAG204_CPU_CAPPED = 0x40,
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};
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struct diag204_info_blk_hdr {
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__u8 npar;
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__u8 flags;
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__u16 tslice;
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__u16 phys_cpus;
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__u16 this_part;
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__u64 curtod;
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} __packed;
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struct diag204_x_info_blk_hdr {
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__u8 npar;
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__u8 flags;
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__u16 tslice;
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__u16 phys_cpus;
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__u16 this_part;
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__u64 curtod1;
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__u64 curtod2;
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char reserved[40];
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} __packed;
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struct diag204_part_hdr {
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__u8 pn;
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__u8 cpus;
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char reserved[6];
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char part_name[DIAG204_LPAR_NAME_LEN];
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} __packed;
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struct diag204_x_part_hdr {
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__u8 pn;
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__u8 cpus;
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__u8 rcpus;
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__u8 pflag;
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__u32 mlu;
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char part_name[DIAG204_LPAR_NAME_LEN];
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char lpc_name[8];
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char os_name[8];
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__u64 online_cs;
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__u64 online_es;
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__u8 upid;
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__u8 reserved:3;
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__u8 mtid:5;
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char reserved1[2];
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__u32 group_mlu;
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char group_name[8];
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char hardware_group_name[8];
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char reserved2[24];
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} __packed;
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struct diag204_cpu_info {
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__u16 cpu_addr;
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char reserved1[2];
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__u8 ctidx;
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__u8 cflag;
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__u16 weight;
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__u64 acc_time;
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__u64 lp_time;
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} __packed;
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struct diag204_x_cpu_info {
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__u16 cpu_addr;
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char reserved1[2];
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__u8 ctidx;
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__u8 cflag;
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__u16 weight;
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__u64 acc_time;
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__u64 lp_time;
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__u16 min_weight;
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__u16 cur_weight;
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__u16 max_weight;
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char reseved2[2];
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__u64 online_time;
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__u64 wait_time;
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__u32 pma_weight;
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__u32 polar_weight;
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__u32 cpu_type_cap;
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__u32 group_cpu_type_cap;
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char reserved3[32];
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} __packed;
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struct diag204_phys_hdr {
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char reserved1[1];
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__u8 cpus;
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char reserved2[6];
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char mgm_name[8];
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} __packed;
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struct diag204_x_phys_hdr {
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char reserved1[1];
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__u8 cpus;
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char reserved2[6];
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char mgm_name[8];
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char reserved3[80];
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} __packed;
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struct diag204_phys_cpu {
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__u16 cpu_addr;
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char reserved1[2];
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__u8 ctidx;
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char reserved2[3];
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__u64 mgm_time;
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char reserved3[8];
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} __packed;
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struct diag204_x_phys_cpu {
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__u16 cpu_addr;
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char reserved1[2];
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__u8 ctidx;
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char reserved2[1];
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__u16 weight;
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__u64 mgm_time;
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char reserved3[80];
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} __packed;
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struct diag204_x_part_block {
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struct diag204_x_part_hdr hdr;
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struct diag204_x_cpu_info cpus[];
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} __packed;
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struct diag204_x_phys_block {
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struct diag204_x_phys_hdr hdr;
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struct diag204_x_phys_cpu cpus[];
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} __packed;
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int diag204(unsigned long subcode, unsigned long size, void *addr);
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int diag224(void *ptr);
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#endif /* _ASM_S390_DIAG_H */
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