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qemu-e2k/target/s390x/cpu.h
Pierre Morel 3d6e75f4df s390x/cpu topology: resetting the Topology-Change-Report 
During a subsystem reset the Topology-Change-Report is cleared
by the machine.
Let's ask KVM to clear the Modified Topology Change Report (MTCR)
bit of the SCA in the case of a subsystem reset.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Message-ID: <20231016183925.2384704-7-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-10-20 07:16:53 +02:00

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/*
* S/390 virtual CPU header
*
* For details on the s390x architecture and used definitions (e.g.,
* PSW, PER and DAT (Dynamic Address Translation)), please refer to
* the "z/Architecture Principles of Operations" - a.k.a. PoP.
*
* Copyright (c) 2009 Ulrich Hecht
* Copyright IBM Corp. 2012, 2018
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef S390X_CPU_H
#define S390X_CPU_H
#include "cpu-qom.h"
#include "cpu_models.h"
#include "exec/cpu-defs.h"
#include "qemu/cpu-float.h"
#include "tcg/tcg_s390x.h"
#include "qapi/qapi-types-machine-common.h"
#define ELF_MACHINE_UNAME "S390X"
/* The z/Architecture has a strong memory model with some store-after-load re-ordering */
#define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
#define TARGET_HAS_PRECISE_SMC
#define TARGET_INSN_START_EXTRA_WORDS 2
#define MMU_USER_IDX 0
#define S390_MAX_CPUS 248
#ifndef CONFIG_KVM
#define S390_ADAPTER_SUPPRESSIBLE 0x01
#else
#define S390_ADAPTER_SUPPRESSIBLE KVM_S390_ADAPTER_SUPPRESSIBLE
#endif
typedef struct PSW {
uint64_t mask;
uint64_t addr;
} PSW;
struct CPUArchState {
uint64_t regs[16]; /* GP registers */
/*
* The floating point registers are part of the vector registers.
* vregs[0][0] -> vregs[15][0] are 16 floating point registers
*/
uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */
uint32_t aregs[16]; /* access registers */
uint64_t gscb[4]; /* guarded storage control */
uint64_t etoken; /* etoken */
uint64_t etoken_extension; /* etoken extension */
uint64_t diag318_info;
/* Fields up to this point are not cleared by initial CPU reset */
struct {} start_initial_reset_fields;
uint32_t fpc; /* floating-point control register */
uint32_t cc_op;
bool bpbc; /* branch prediction blocking */
float_status fpu_status; /* passed to softfloat lib */
PSW psw;
S390CrashReason crash_reason;
uint64_t cc_src;
uint64_t cc_dst;
uint64_t cc_vr;
uint64_t ex_value;
uint64_t ex_target;
uint64_t __excp_addr;
uint64_t psa;
uint32_t int_pgm_code;
uint32_t int_pgm_ilen;
uint32_t int_svc_code;
uint32_t int_svc_ilen;
uint64_t per_address;
uint16_t per_perc_atmid;
uint64_t cregs[16]; /* control registers */
uint64_t ckc;
uint64_t cputm;
uint32_t todpr;
uint64_t pfault_token;
uint64_t pfault_compare;
uint64_t pfault_select;
uint64_t gbea;
uint64_t pp;
/* Fields up to this point are not cleared by normal CPU reset */
struct {} start_normal_reset_fields;
uint8_t riccb[64]; /* runtime instrumentation control */
int pending_int;
uint16_t external_call_addr;
DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS);
#if !defined(CONFIG_USER_ONLY)
uint64_t tlb_fill_tec; /* translation exception code during tlb_fill */
int tlb_fill_exc; /* exception number seen during tlb_fill */
#endif
/* Fields up to this point are cleared by a CPU reset */
struct {} end_reset_fields;
#if !defined(CONFIG_USER_ONLY)
uint32_t core_id; /* PoP "CPU address", same as cpu_index */
int32_t socket_id;
int32_t book_id;
int32_t drawer_id;
bool dedicated;
CpuS390Entitlement entitlement; /* Used only for vertical polarization */
uint64_t cpuid;
#endif
QEMUTimer *tod_timer;
QEMUTimer *cpu_timer;
/*
* The cpu state represents the logical state of a cpu. In contrast to other
* architectures, there is a difference between a halt and a stop on s390.
* If all cpus are either stopped (including check stop) or in the disabled
* wait state, the vm can be shut down.
* The acceptable cpu_state values are defined in the CpuInfoS390State
* enum.
*/
uint8_t cpu_state;
/* currently processed sigp order */
uint8_t sigp_order;
};
static inline uint64_t *get_freg(CPUS390XState *cs, int nr)
{
return &cs->vregs[nr][0];
}
/**
* S390CPU:
* @env: #CPUS390XState.
*
* An S/390 CPU.
*/
struct ArchCPU {
/*< private >*/
CPUState parent_obj;
/*< public >*/
CPUS390XState env;
S390CPUModel *model;
/* needed for live migration */
void *irqstate;
uint32_t irqstate_saved_size;
};
#ifndef CONFIG_USER_ONLY
extern const VMStateDescription vmstate_s390_cpu;
#endif
/* distinguish between 24 bit and 31 bit addressing */
#define HIGH_ORDER_BIT 0x80000000
/* Interrupt Codes */
/* Program Interrupts */
#define PGM_OPERATION 0x0001
#define PGM_PRIVILEGED 0x0002
#define PGM_EXECUTE 0x0003
#define PGM_PROTECTION 0x0004
#define PGM_ADDRESSING 0x0005
#define PGM_SPECIFICATION 0x0006
#define PGM_DATA 0x0007
#define PGM_FIXPT_OVERFLOW 0x0008
#define PGM_FIXPT_DIVIDE 0x0009
#define PGM_DEC_OVERFLOW 0x000a
#define PGM_DEC_DIVIDE 0x000b
#define PGM_HFP_EXP_OVERFLOW 0x000c
#define PGM_HFP_EXP_UNDERFLOW 0x000d
#define PGM_HFP_SIGNIFICANCE 0x000e
#define PGM_HFP_DIVIDE 0x000f
#define PGM_SEGMENT_TRANS 0x0010
#define PGM_PAGE_TRANS 0x0011
#define PGM_TRANS_SPEC 0x0012
#define PGM_SPECIAL_OP 0x0013
#define PGM_OPERAND 0x0015
#define PGM_TRACE_TABLE 0x0016
#define PGM_VECTOR_PROCESSING 0x001b
#define PGM_SPACE_SWITCH 0x001c
#define PGM_HFP_SQRT 0x001d
#define PGM_PC_TRANS_SPEC 0x001f
#define PGM_AFX_TRANS 0x0020
#define PGM_ASX_TRANS 0x0021
#define PGM_LX_TRANS 0x0022
#define PGM_EX_TRANS 0x0023
#define PGM_PRIM_AUTH 0x0024
#define PGM_SEC_AUTH 0x0025
#define PGM_ALET_SPEC 0x0028
#define PGM_ALEN_SPEC 0x0029
#define PGM_ALE_SEQ 0x002a
#define PGM_ASTE_VALID 0x002b
#define PGM_ASTE_SEQ 0x002c
#define PGM_EXT_AUTH 0x002d
#define PGM_STACK_FULL 0x0030
#define PGM_STACK_EMPTY 0x0031
#define PGM_STACK_SPEC 0x0032
#define PGM_STACK_TYPE 0x0033
#define PGM_STACK_OP 0x0034
#define PGM_ASCE_TYPE 0x0038
#define PGM_REG_FIRST_TRANS 0x0039
#define PGM_REG_SEC_TRANS 0x003a
#define PGM_REG_THIRD_TRANS 0x003b
#define PGM_MONITOR 0x0040
#define PGM_PER 0x0080
#define PGM_CRYPTO 0x0119
/* External Interrupts */
#define EXT_INTERRUPT_KEY 0x0040
#define EXT_CLOCK_COMP 0x1004
#define EXT_CPU_TIMER 0x1005
#define EXT_MALFUNCTION 0x1200
#define EXT_EMERGENCY 0x1201
#define EXT_EXTERNAL_CALL 0x1202
#define EXT_ETR 0x1406
#define EXT_SERVICE 0x2401
#define EXT_VIRTIO 0x2603
/* PSW defines */
#undef PSW_MASK_PER
#undef PSW_MASK_UNUSED_2
#undef PSW_MASK_UNUSED_3
#undef PSW_MASK_DAT
#undef PSW_MASK_IO
#undef PSW_MASK_EXT
#undef PSW_MASK_KEY
#undef PSW_SHIFT_KEY
#undef PSW_MASK_MCHECK
#undef PSW_MASK_WAIT
#undef PSW_MASK_PSTATE
#undef PSW_MASK_ASC
#undef PSW_SHIFT_ASC
#undef PSW_MASK_CC
#undef PSW_MASK_PM
#undef PSW_MASK_RI
#undef PSW_SHIFT_MASK_PM
#undef PSW_MASK_64
#undef PSW_MASK_32
#undef PSW_MASK_ESA_ADDR
#define PSW_MASK_PER 0x4000000000000000ULL
#define PSW_MASK_UNUSED_2 0x2000000000000000ULL
#define PSW_MASK_UNUSED_3 0x1000000000000000ULL
#define PSW_MASK_DAT 0x0400000000000000ULL
#define PSW_MASK_IO 0x0200000000000000ULL
#define PSW_MASK_EXT 0x0100000000000000ULL
#define PSW_MASK_KEY 0x00F0000000000000ULL
#define PSW_SHIFT_KEY 52
#define PSW_MASK_SHORTPSW 0x0008000000000000ULL
#define PSW_MASK_MCHECK 0x0004000000000000ULL
#define PSW_MASK_WAIT 0x0002000000000000ULL
#define PSW_MASK_PSTATE 0x0001000000000000ULL
#define PSW_MASK_ASC 0x0000C00000000000ULL
#define PSW_SHIFT_ASC 46
#define PSW_MASK_CC 0x0000300000000000ULL
#define PSW_MASK_PM 0x00000F0000000000ULL
#define PSW_SHIFT_MASK_PM 40
#define PSW_MASK_RI 0x0000008000000000ULL
#define PSW_MASK_64 0x0000000100000000ULL
#define PSW_MASK_32 0x0000000080000000ULL
#define PSW_MASK_SHORT_ADDR 0x000000007fffffffULL
#define PSW_MASK_SHORT_CTRL 0xffffffff80000000ULL
#define PSW_MASK_RESERVED 0xb80800fe7fffffffULL
#undef PSW_ASC_PRIMARY
#undef PSW_ASC_ACCREG
#undef PSW_ASC_SECONDARY
#undef PSW_ASC_HOME
#define PSW_ASC_PRIMARY 0x0000000000000000ULL
#define PSW_ASC_ACCREG 0x0000400000000000ULL
#define PSW_ASC_SECONDARY 0x0000800000000000ULL
#define PSW_ASC_HOME 0x0000C00000000000ULL
/* the address space values shifted */
#define AS_PRIMARY 0
#define AS_ACCREG 1
#define AS_SECONDARY 2
#define AS_HOME 3
/* tb flags */
#define FLAG_MASK_PSW_SHIFT 31
#define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \
| FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32)
/* we'll use some unused PSW positions to store CR flags in tb flags */
#define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_VECTOR (PSW_MASK_UNUSED_3 >> FLAG_MASK_PSW_SHIFT)
/* Control register 0 bits */
#define CR0_LOWPROT 0x0000000010000000ULL
#define CR0_SECONDARY 0x0000000004000000ULL
#define CR0_EDAT 0x0000000000800000ULL
#define CR0_AFP 0x0000000000040000ULL
#define CR0_VECTOR 0x0000000000020000ULL
#define CR0_IEP 0x0000000000100000ULL
#define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL
#define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL
#define CR0_CKC_SC 0x0000000000000800ULL
#define CR0_CPU_TIMER_SC 0x0000000000000400ULL
#define CR0_SERVICE_SC 0x0000000000000200ULL
/* Control register 14 bits */
#define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL
/* MMU */
#define MMU_PRIMARY_IDX 0
#define MMU_SECONDARY_IDX 1
#define MMU_HOME_IDX 2
#define MMU_REAL_IDX 3
static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch)
{
#ifdef CONFIG_USER_ONLY
return MMU_USER_IDX;
#else
if (!(env->psw.mask & PSW_MASK_DAT)) {
return MMU_REAL_IDX;
}
if (ifetch) {
if ((env->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) {
return MMU_HOME_IDX;
}
return MMU_PRIMARY_IDX;
}
switch (env->psw.mask & PSW_MASK_ASC) {
case PSW_ASC_PRIMARY:
return MMU_PRIMARY_IDX;
case PSW_ASC_SECONDARY:
return MMU_SECONDARY_IDX;
case PSW_ASC_HOME:
return MMU_HOME_IDX;
case PSW_ASC_ACCREG:
/* Fallthrough: access register mode is not yet supported */
default:
abort();
}
#endif
}
static inline void cpu_get_tb_cpu_state(CPUS390XState *env, vaddr *pc,
uint64_t *cs_base, uint32_t *flags)
{
if (env->psw.addr & 1) {
/*
* Instructions must be at even addresses.
* This needs to be checked before address translation.
*/
env->int_pgm_ilen = 2; /* see s390_cpu_tlb_fill() */
tcg_s390_program_interrupt(env, PGM_SPECIFICATION, 0);
}
*pc = env->psw.addr;
*cs_base = env->ex_value;
*flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW;
if (env->cregs[0] & CR0_AFP) {
*flags |= FLAG_MASK_AFP;
}
if (env->cregs[0] & CR0_VECTOR) {
*flags |= FLAG_MASK_VECTOR;
}
}
/* PER bits from control register 9 */
#define PER_CR9_EVENT_BRANCH 0x80000000
#define PER_CR9_EVENT_IFETCH 0x40000000
#define PER_CR9_EVENT_STORE 0x20000000
#define PER_CR9_EVENT_STORE_REAL 0x08000000
#define PER_CR9_EVENT_NULLIFICATION 0x01000000
#define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000
#define PER_CR9_CONTROL_ALTERATION 0x00200000
/* PER bits from the PER CODE/ATMID/AI in lowcore */
#define PER_CODE_EVENT_BRANCH 0x8000
#define PER_CODE_EVENT_IFETCH 0x4000
#define PER_CODE_EVENT_STORE 0x2000
#define PER_CODE_EVENT_STORE_REAL 0x0800
#define PER_CODE_EVENT_NULLIFICATION 0x0100
#define EXCP_EXT 1 /* external interrupt */
#define EXCP_SVC 2 /* supervisor call (syscall) */
#define EXCP_PGM 3 /* program interruption */
#define EXCP_RESTART 4 /* restart interrupt */
#define EXCP_STOP 5 /* stop interrupt */
#define EXCP_IO 7 /* I/O interrupt */
#define EXCP_MCHK 8 /* machine check */
#define INTERRUPT_EXT_CPU_TIMER (1 << 3)
#define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4)
#define INTERRUPT_EXTERNAL_CALL (1 << 5)
#define INTERRUPT_EMERGENCY_SIGNAL (1 << 6)
#define INTERRUPT_RESTART (1 << 7)
#define INTERRUPT_STOP (1 << 8)
/* Program Status Word. */
#define S390_PSWM_REGNUM 0
#define S390_PSWA_REGNUM 1
/* General Purpose Registers. */
#define S390_R0_REGNUM 2
#define S390_R1_REGNUM 3
#define S390_R2_REGNUM 4
#define S390_R3_REGNUM 5
#define S390_R4_REGNUM 6
#define S390_R5_REGNUM 7
#define S390_R6_REGNUM 8
#define S390_R7_REGNUM 9
#define S390_R8_REGNUM 10
#define S390_R9_REGNUM 11
#define S390_R10_REGNUM 12
#define S390_R11_REGNUM 13
#define S390_R12_REGNUM 14
#define S390_R13_REGNUM 15
#define S390_R14_REGNUM 16
#define S390_R15_REGNUM 17
/* Total Core Registers. */
#define S390_NUM_CORE_REGS 18
static inline void setcc(S390CPU *cpu, uint64_t cc)
{
CPUS390XState *env = &cpu->env;
env->psw.mask &= ~(3ull << 44);
env->psw.mask |= (cc & 3) << 44;
env->cc_op = cc;
}
/* STSI */
#define STSI_R0_FC_MASK 0x00000000f0000000ULL
#define STSI_R0_FC_CURRENT 0x0000000000000000ULL
#define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL
#define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL
#define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL
#define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL
#define STSI_R0_SEL1_MASK 0x00000000000000ffULL
#define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL
#define STSI_R1_SEL2_MASK 0x000000000000ffffULL
/* Basic Machine Configuration */
typedef struct SysIB_111 {
uint8_t res1[32];
uint8_t manuf[16];
uint8_t type[4];
uint8_t res2[12];
uint8_t model[16];
uint8_t sequence[16];
uint8_t plant[4];
uint8_t res3[3996];
} SysIB_111;
QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096);
/* Basic Machine CPU */
typedef struct SysIB_121 {
uint8_t res1[80];
uint8_t sequence[16];
uint8_t plant[4];
uint8_t res2[2];
uint16_t cpu_addr;
uint8_t res3[3992];
} SysIB_121;
QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096);
/* Basic Machine CPUs */
typedef struct SysIB_122 {
uint8_t res1[32];
uint32_t capability;
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint16_t adjustments[2026];
} SysIB_122;
QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096);
/* LPAR CPU */
typedef struct SysIB_221 {
uint8_t res1[80];
uint8_t sequence[16];
uint8_t plant[4];
uint16_t cpu_id;
uint16_t cpu_addr;
uint8_t res3[3992];
} SysIB_221;
QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096);
/* LPAR CPUs */
typedef struct SysIB_222 {
uint8_t res1[32];
uint16_t lpar_num;
uint8_t res2;
uint8_t lcpuc;
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint8_t name[8];
uint32_t caf;
uint8_t res3[16];
uint16_t dedicated_cpus;
uint16_t shared_cpus;
uint8_t res4[4020];
} SysIB_222;
QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096);
/* VM CPUs */
typedef struct SysIB_322 {
uint8_t res1[31];
uint8_t count;
struct {
uint8_t res2[4];
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint8_t name[8];
uint32_t caf;
uint8_t cpi[16];
uint8_t res5[3];
uint8_t ext_name_encoding;
uint32_t res3;
uint8_t uuid[16];
} vm[8];
uint8_t res4[1504];
uint8_t ext_names[8][256];
} SysIB_322;
QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096);
/*
* Topology Magnitude fields (MAG) indicates the maximum number of
* topology list entries (TLE) at the corresponding nesting level.
*/
#define S390_TOPOLOGY_MAG 6
#define S390_TOPOLOGY_MAG6 0
#define S390_TOPOLOGY_MAG5 1
#define S390_TOPOLOGY_MAG4 2
#define S390_TOPOLOGY_MAG3 3
#define S390_TOPOLOGY_MAG2 4
#define S390_TOPOLOGY_MAG1 5
/* Configuration topology */
typedef struct SysIB_151x {
uint8_t reserved0[2];
uint16_t length;
uint8_t mag[S390_TOPOLOGY_MAG];
uint8_t reserved1;
uint8_t mnest;
uint32_t reserved2;
char tle[];
} SysIB_151x;
QEMU_BUILD_BUG_ON(sizeof(SysIB_151x) != 16);
typedef union SysIB {
SysIB_111 sysib_111;
SysIB_121 sysib_121;
SysIB_122 sysib_122;
SysIB_221 sysib_221;
SysIB_222 sysib_222;
SysIB_322 sysib_322;
SysIB_151x sysib_151x;
} SysIB;
QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096);
/*
* CPU Topology List provided by STSI with fc=15 provides a list
* of two different Topology List Entries (TLE) types to specify
* the topology hierarchy.
*
* - Container Topology List Entry
* Defines a container to contain other Topology List Entries
* of any type, nested containers or CPU.
* - CPU Topology List Entry
* Specifies the CPUs position, type, entitlement and polarization
* of the CPUs contained in the last container TLE.
*
* There can be theoretically up to five levels of containers, QEMU
* uses only three levels, the drawer's, book's and socket's level.
*
* A container with a nesting level (NL) greater than 1 can only
* contain another container of nesting level NL-1.
*
* A container of nesting level 1 (socket), contains as many CPU TLE
* as needed to describe the position and qualities of all CPUs inside
* the container.
* The qualities of a CPU are polarization, entitlement and type.
*
* The CPU TLE defines the position of the CPUs of identical qualities
* using a 64bits mask which first bit has its offset defined by
* the CPU address origin field of the CPU TLE like in:
* CPU address = origin * 64 + bit position within the mask
*/
/* Container type Topology List Entry */
typedef struct SYSIBContainerListEntry {
uint8_t nl;
uint8_t reserved[6];
uint8_t id;
} SYSIBContainerListEntry;
QEMU_BUILD_BUG_ON(sizeof(SYSIBContainerListEntry) != 8);
/* CPU type Topology List Entry */
typedef struct SysIBCPUListEntry {
uint8_t nl;
uint8_t reserved0[3];
#define SYSIB_TLE_POLARITY_MASK 0x03
#define SYSIB_TLE_DEDICATED 0x04
uint8_t flags;
uint8_t type;
uint16_t origin;
uint64_t mask;
} SysIBCPUListEntry;
QEMU_BUILD_BUG_ON(sizeof(SysIBCPUListEntry) != 16);
void insert_stsi_15_1_x(S390CPU *cpu, int sel2, uint64_t addr, uint8_t ar, uintptr_t ra);
void s390_cpu_topology_set_changed(bool changed);
/* MMU defines */
#define ASCE_ORIGIN (~0xfffULL) /* segment table origin */
#define ASCE_SUBSPACE 0x200 /* subspace group control */
#define ASCE_PRIVATE_SPACE 0x100 /* private space control */
#define ASCE_ALT_EVENT 0x80 /* storage alteration event control */
#define ASCE_SPACE_SWITCH 0x40 /* space switch event */
#define ASCE_REAL_SPACE 0x20 /* real space control */
#define ASCE_TYPE_MASK 0x0c /* asce table type mask */
#define ASCE_TYPE_REGION1 0x0c /* region first table type */
#define ASCE_TYPE_REGION2 0x08 /* region second table type */
#define ASCE_TYPE_REGION3 0x04 /* region third table type */
#define ASCE_TYPE_SEGMENT 0x00 /* segment table type */
#define ASCE_TABLE_LENGTH 0x03 /* region table length */
#define REGION_ENTRY_ORIGIN 0xfffffffffffff000ULL
#define REGION_ENTRY_P 0x0000000000000200ULL
#define REGION_ENTRY_TF 0x00000000000000c0ULL
#define REGION_ENTRY_I 0x0000000000000020ULL
#define REGION_ENTRY_TT 0x000000000000000cULL
#define REGION_ENTRY_TL 0x0000000000000003ULL
#define REGION_ENTRY_TT_REGION1 0x000000000000000cULL
#define REGION_ENTRY_TT_REGION2 0x0000000000000008ULL
#define REGION_ENTRY_TT_REGION3 0x0000000000000004ULL
#define REGION3_ENTRY_RFAA 0xffffffff80000000ULL
#define REGION3_ENTRY_AV 0x0000000000010000ULL
#define REGION3_ENTRY_ACC 0x000000000000f000ULL
#define REGION3_ENTRY_F 0x0000000000000800ULL
#define REGION3_ENTRY_FC 0x0000000000000400ULL
#define REGION3_ENTRY_IEP 0x0000000000000100ULL
#define REGION3_ENTRY_CR 0x0000000000000010ULL
#define SEGMENT_ENTRY_ORIGIN 0xfffffffffffff800ULL
#define SEGMENT_ENTRY_SFAA 0xfffffffffff00000ULL
#define SEGMENT_ENTRY_AV 0x0000000000010000ULL
#define SEGMENT_ENTRY_ACC 0x000000000000f000ULL
#define SEGMENT_ENTRY_F 0x0000000000000800ULL
#define SEGMENT_ENTRY_FC 0x0000000000000400ULL
#define SEGMENT_ENTRY_P 0x0000000000000200ULL
#define SEGMENT_ENTRY_IEP 0x0000000000000100ULL
#define SEGMENT_ENTRY_I 0x0000000000000020ULL
#define SEGMENT_ENTRY_CS 0x0000000000000010ULL
#define SEGMENT_ENTRY_TT 0x000000000000000cULL
#define SEGMENT_ENTRY_TT_SEGMENT 0x0000000000000000ULL
#define PAGE_ENTRY_0 0x0000000000000800ULL
#define PAGE_ENTRY_I 0x0000000000000400ULL
#define PAGE_ENTRY_P 0x0000000000000200ULL
#define PAGE_ENTRY_IEP 0x0000000000000100ULL
#define VADDR_REGION1_TX_MASK 0xffe0000000000000ULL
#define VADDR_REGION2_TX_MASK 0x001ffc0000000000ULL
#define VADDR_REGION3_TX_MASK 0x000003ff80000000ULL
#define VADDR_SEGMENT_TX_MASK 0x000000007ff00000ULL
#define VADDR_PAGE_TX_MASK 0x00000000000ff000ULL
#define VADDR_REGION1_TX(vaddr) (((vaddr) & VADDR_REGION1_TX_MASK) >> 53)
#define VADDR_REGION2_TX(vaddr) (((vaddr) & VADDR_REGION2_TX_MASK) >> 42)
#define VADDR_REGION3_TX(vaddr) (((vaddr) & VADDR_REGION3_TX_MASK) >> 31)
#define VADDR_SEGMENT_TX(vaddr) (((vaddr) & VADDR_SEGMENT_TX_MASK) >> 20)
#define VADDR_PAGE_TX(vaddr) (((vaddr) & VADDR_PAGE_TX_MASK) >> 12)
#define VADDR_REGION1_TL(vaddr) (((vaddr) & 0xc000000000000000ULL) >> 62)
#define VADDR_REGION2_TL(vaddr) (((vaddr) & 0x0018000000000000ULL) >> 51)
#define VADDR_REGION3_TL(vaddr) (((vaddr) & 0x0000030000000000ULL) >> 40)
#define VADDR_SEGMENT_TL(vaddr) (((vaddr) & 0x0000000060000000ULL) >> 29)
#define SK_C (0x1 << 1)
#define SK_R (0x1 << 2)
#define SK_F (0x1 << 3)
#define SK_ACC_MASK (0xf << 4)
/* SIGP order codes */
#define SIGP_SENSE 0x01
#define SIGP_EXTERNAL_CALL 0x02
#define SIGP_EMERGENCY 0x03
#define SIGP_START 0x04
#define SIGP_STOP 0x05
#define SIGP_RESTART 0x06
#define SIGP_STOP_STORE_STATUS 0x09
#define SIGP_INITIAL_CPU_RESET 0x0b
#define SIGP_CPU_RESET 0x0c
#define SIGP_SET_PREFIX 0x0d
#define SIGP_STORE_STATUS_ADDR 0x0e
#define SIGP_SET_ARCH 0x12
#define SIGP_COND_EMERGENCY 0x13
#define SIGP_SENSE_RUNNING 0x15
#define SIGP_STORE_ADTL_STATUS 0x17
/* SIGP condition codes */
#define SIGP_CC_ORDER_CODE_ACCEPTED 0
#define SIGP_CC_STATUS_STORED 1
#define SIGP_CC_BUSY 2
#define SIGP_CC_NOT_OPERATIONAL 3
/* SIGP status bits */
#define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL
#define SIGP_STAT_NOT_RUNNING 0x00000400UL
#define SIGP_STAT_INCORRECT_STATE 0x00000200UL
#define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
#define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL
#define SIGP_STAT_STOPPED 0x00000040UL
#define SIGP_STAT_OPERATOR_INTERV 0x00000020UL
#define SIGP_STAT_CHECK_STOP 0x00000010UL
#define SIGP_STAT_INOPERATIVE 0x00000004UL
#define SIGP_STAT_INVALID_ORDER 0x00000002UL
#define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
/* SIGP order code mask corresponding to bit positions 56-63 */
#define SIGP_ORDER_MASK 0x000000ff
/* machine check interruption code */
/* subclasses */
#define MCIC_SC_SD 0x8000000000000000ULL
#define MCIC_SC_PD 0x4000000000000000ULL
#define MCIC_SC_SR 0x2000000000000000ULL
#define MCIC_SC_CD 0x0800000000000000ULL
#define MCIC_SC_ED 0x0400000000000000ULL
#define MCIC_SC_DG 0x0100000000000000ULL
#define MCIC_SC_W 0x0080000000000000ULL
#define MCIC_SC_CP 0x0040000000000000ULL
#define MCIC_SC_SP 0x0020000000000000ULL
#define MCIC_SC_CK 0x0010000000000000ULL
/* subclass modifiers */
#define MCIC_SCM_B 0x0002000000000000ULL
#define MCIC_SCM_DA 0x0000000020000000ULL
#define MCIC_SCM_AP 0x0000000000080000ULL
/* storage errors */
#define MCIC_SE_SE 0x0000800000000000ULL
#define MCIC_SE_SC 0x0000400000000000ULL
#define MCIC_SE_KE 0x0000200000000000ULL
#define MCIC_SE_DS 0x0000100000000000ULL
#define MCIC_SE_IE 0x0000000080000000ULL
/* validity bits */
#define MCIC_VB_WP 0x0000080000000000ULL
#define MCIC_VB_MS 0x0000040000000000ULL
#define MCIC_VB_PM 0x0000020000000000ULL
#define MCIC_VB_IA 0x0000010000000000ULL
#define MCIC_VB_FA 0x0000008000000000ULL
#define MCIC_VB_VR 0x0000004000000000ULL
#define MCIC_VB_EC 0x0000002000000000ULL
#define MCIC_VB_FP 0x0000001000000000ULL
#define MCIC_VB_GR 0x0000000800000000ULL
#define MCIC_VB_CR 0x0000000400000000ULL
#define MCIC_VB_ST 0x0000000100000000ULL
#define MCIC_VB_AR 0x0000000040000000ULL
#define MCIC_VB_GS 0x0000000008000000ULL
#define MCIC_VB_PR 0x0000000000200000ULL
#define MCIC_VB_FC 0x0000000000100000ULL
#define MCIC_VB_CT 0x0000000000020000ULL
#define MCIC_VB_CC 0x0000000000010000ULL
static inline uint64_t s390_build_validity_mcic(void)
{
uint64_t mcic;
/*
* Indicate all validity bits (no damage) only. Other bits have to be
* added by the caller. (storage errors, subclasses and subclass modifiers)
*/
mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP |
MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR |
MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC;
if (s390_has_feat(S390_FEAT_VECTOR)) {
mcic |= MCIC_VB_VR;
}
if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) {
mcic |= MCIC_VB_GS;
}
return mcic;
}
static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg)
{
cpu_reset(cs);
}
static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->reset(cs, S390_CPU_RESET_NORMAL);
}
static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->reset(cs, S390_CPU_RESET_INITIAL);
}
static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->load_normal(cs);
}
/* cpu.c */
void s390_crypto_reset(void);
int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit);
void s390_set_max_pagesize(uint64_t pagesize, Error **errp);
void s390_cmma_reset(void);
void s390_enable_css_support(S390CPU *cpu);
void s390_do_cpu_set_diag318(CPUState *cs, run_on_cpu_data arg);
int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id,
int vq, bool assign);
#ifndef CONFIG_USER_ONLY
unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu);
#else
static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
{
return 0;
}
#endif /* CONFIG_USER_ONLY */
static inline uint8_t s390_cpu_get_state(S390CPU *cpu)
{
return cpu->env.cpu_state;
}
/* cpu_models.c */
void s390_cpu_list(void);
#define cpu_list s390_cpu_list
void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
const S390FeatInit feat_init);
/* helper.c */
#define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU
#define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX)
#define CPU_RESOLVING_TYPE TYPE_S390_CPU
/* interrupt.c */
#define RA_IGNORED 0
void s390_program_interrupt(CPUS390XState *env, uint32_t code, uintptr_t ra);
/* service interrupts are floating therefore we must not pass an cpustate */
void s390_sclp_extint(uint32_t parm);
/* mmu_helper.c */
int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf,
int len, bool is_write);
#define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false)
#define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true)
#define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false)
#define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true)
void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra);
int s390_cpu_pv_mem_rw(S390CPU *cpu, unsigned int offset, void *hostbuf,
int len, bool is_write);
#define s390_cpu_pv_mem_read(cpu, offset, dest, len) \
s390_cpu_pv_mem_rw(cpu, offset, dest, len, false)
#define s390_cpu_pv_mem_write(cpu, offset, dest, len) \
s390_cpu_pv_mem_rw(cpu, offset, dest, len, true)
/* sigp.c */
int s390_cpu_restart(S390CPU *cpu);
void s390_init_sigp(void);
/* helper.c */
void s390_cpu_set_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
uint64_t s390_cpu_get_psw_mask(CPUS390XState *env);
/* outside of target/s390x/ */
S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
#include "exec/cpu-all.h"
#endif
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