| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * definition for kernel virtual machines on s390 |
| * |
| * Copyright IBM Corp. 2008, 2018 |
| * |
| * Author(s): Carsten Otte <cotte@de.ibm.com> |
| */ |
| |
| |
| #ifndef ASM_KVM_HOST_H |
| #define ASM_KVM_HOST_H |
| |
| #include <linux/types.h> |
| #include <linux/hrtimer.h> |
| #include <linux/interrupt.h> |
| #include <linux/kvm_types.h> |
| #include <linux/kvm_host.h> |
| #include <linux/kvm.h> |
| #include <linux/seqlock.h> |
| #include <linux/module.h> |
| #include <linux/pci.h> |
| #include <linux/mmu_notifier.h> |
| #include <asm/debug.h> |
| #include <asm/cpu.h> |
| #include <asm/fpu/api.h> |
| #include <asm/isc.h> |
| #include <asm/guarded_storage.h> |
| |
| #define KVM_S390_BSCA_CPU_SLOTS 64 |
| #define KVM_S390_ESCA_CPU_SLOTS 248 |
| #define KVM_MAX_VCPUS 255 |
| |
| /* |
| * These seem to be used for allocating ->chip in the routing table, which we |
| * don't use. 1 is as small as we can get to reduce the needed memory. If we |
| * need to look at ->chip later on, we'll need to revisit this. |
| */ |
| #define KVM_NR_IRQCHIPS 1 |
| #define KVM_IRQCHIP_NUM_PINS 1 |
| #define KVM_HALT_POLL_NS_DEFAULT 50000 |
| |
| /* s390-specific vcpu->requests bit members */ |
| #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0) |
| #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1) |
| #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) |
| #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) |
| #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) |
| #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5) |
| #define KVM_REQ_REFRESH_GUEST_PREFIX \ |
| KVM_ARCH_REQ_FLAGS(6, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) |
| |
| #define SIGP_CTRL_C 0x80 |
| #define SIGP_CTRL_SCN_MASK 0x3f |
| |
| union bsca_sigp_ctrl { |
| __u8 value; |
| struct { |
| __u8 c : 1; |
| __u8 r : 1; |
| __u8 scn : 6; |
| }; |
| }; |
| |
| union esca_sigp_ctrl { |
| __u16 value; |
| struct { |
| __u8 c : 1; |
| __u8 reserved: 7; |
| __u8 scn; |
| }; |
| }; |
| |
| struct esca_entry { |
| union esca_sigp_ctrl sigp_ctrl; |
| __u16 reserved1[3]; |
| __u64 sda; |
| __u64 reserved2[6]; |
| }; |
| |
| struct bsca_entry { |
| __u8 reserved0; |
| union bsca_sigp_ctrl sigp_ctrl; |
| __u16 reserved[3]; |
| __u64 sda; |
| __u64 reserved2[2]; |
| }; |
| |
| union ipte_control { |
| unsigned long val; |
| struct { |
| unsigned long k : 1; |
| unsigned long kh : 31; |
| unsigned long kg : 32; |
| }; |
| }; |
| |
| union sca_utility { |
| __u16 val; |
| struct { |
| __u16 mtcr : 1; |
| __u16 reserved : 15; |
| }; |
| }; |
| |
| struct bsca_block { |
| union ipte_control ipte_control; |
| __u64 reserved[5]; |
| __u64 mcn; |
| union sca_utility utility; |
| __u8 reserved2[6]; |
| struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS]; |
| }; |
| |
| struct esca_block { |
| union ipte_control ipte_control; |
| __u64 reserved1[6]; |
| union sca_utility utility; |
| __u8 reserved2[6]; |
| __u64 mcn[4]; |
| __u64 reserved3[20]; |
| struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; |
| }; |
| |
| /* |
| * This struct is used to store some machine check info from lowcore |
| * for machine checks that happen while the guest is running. |
| * This info in host's lowcore might be overwritten by a second machine |
| * check from host when host is in the machine check's high-level handling. |
| * The size is 24 bytes. |
| */ |
| struct mcck_volatile_info { |
| __u64 mcic; |
| __u64 failing_storage_address; |
| __u32 ext_damage_code; |
| __u32 reserved; |
| }; |
| |
| #define CR0_INITIAL_MASK (CR0_UNUSED_56 | CR0_INTERRUPT_KEY_SUBMASK | \ |
| CR0_MEASUREMENT_ALERT_SUBMASK) |
| #define CR14_INITIAL_MASK (CR14_UNUSED_32 | CR14_UNUSED_33 | \ |
| CR14_EXTERNAL_DAMAGE_SUBMASK) |
| |
| #define SIDAD_SIZE_MASK 0xff |
| #define sida_addr(sie_block) phys_to_virt((sie_block)->sidad & PAGE_MASK) |
| #define sida_size(sie_block) \ |
| ((((sie_block)->sidad & SIDAD_SIZE_MASK) + 1) * PAGE_SIZE) |
| |
| #define CPUSTAT_STOPPED 0x80000000 |
| #define CPUSTAT_WAIT 0x10000000 |
| #define CPUSTAT_ECALL_PEND 0x08000000 |
| #define CPUSTAT_STOP_INT 0x04000000 |
| #define CPUSTAT_IO_INT 0x02000000 |
| #define CPUSTAT_EXT_INT 0x01000000 |
| #define CPUSTAT_RUNNING 0x00800000 |
| #define CPUSTAT_RETAINED 0x00400000 |
| #define CPUSTAT_TIMING_SUB 0x00020000 |
| #define CPUSTAT_SIE_SUB 0x00010000 |
| #define CPUSTAT_RRF 0x00008000 |
| #define CPUSTAT_SLSV 0x00004000 |
| #define CPUSTAT_SLSR 0x00002000 |
| #define CPUSTAT_ZARCH 0x00000800 |
| #define CPUSTAT_MCDS 0x00000100 |
| #define CPUSTAT_KSS 0x00000200 |
| #define CPUSTAT_SM 0x00000080 |
| #define CPUSTAT_IBS 0x00000040 |
| #define CPUSTAT_GED2 0x00000010 |
| #define CPUSTAT_G 0x00000008 |
| #define CPUSTAT_GED 0x00000004 |
| #define CPUSTAT_J 0x00000002 |
| #define CPUSTAT_P 0x00000001 |
| |
| struct kvm_s390_sie_block { |
| atomic_t cpuflags; /* 0x0000 */ |
| __u32 : 1; /* 0x0004 */ |
| __u32 prefix : 18; |
| __u32 : 1; |
| __u32 ibc : 12; |
| __u8 reserved08[4]; /* 0x0008 */ |
| #define PROG_IN_SIE (1<<0) |
| __u32 prog0c; /* 0x000c */ |
| union { |
| __u8 reserved10[16]; /* 0x0010 */ |
| struct { |
| __u64 pv_handle_cpu; |
| __u64 pv_handle_config; |
| }; |
| }; |
| #define PROG_BLOCK_SIE (1<<0) |
| #define PROG_REQUEST (1<<1) |
| atomic_t prog20; /* 0x0020 */ |
| __u8 reserved24[4]; /* 0x0024 */ |
| __u64 cputm; /* 0x0028 */ |
| __u64 ckc; /* 0x0030 */ |
| __u64 epoch; /* 0x0038 */ |
| __u32 svcc; /* 0x0040 */ |
| #define LCTL_CR0 0x8000 |
| #define LCTL_CR6 0x0200 |
| #define LCTL_CR9 0x0040 |
| #define LCTL_CR10 0x0020 |
| #define LCTL_CR11 0x0010 |
| #define LCTL_CR14 0x0002 |
| __u16 lctl; /* 0x0044 */ |
| __s16 icpua; /* 0x0046 */ |
| #define ICTL_OPEREXC 0x80000000 |
| #define ICTL_PINT 0x20000000 |
| #define ICTL_LPSW 0x00400000 |
| #define ICTL_STCTL 0x00040000 |
| #define ICTL_ISKE 0x00004000 |
| #define ICTL_SSKE 0x00002000 |
| #define ICTL_RRBE 0x00001000 |
| #define ICTL_TPROT 0x00000200 |
| __u32 ictl; /* 0x0048 */ |
| #define ECA_CEI 0x80000000 |
| #define ECA_IB 0x40000000 |
| #define ECA_SIGPI 0x10000000 |
| #define ECA_MVPGI 0x01000000 |
| #define ECA_AIV 0x00200000 |
| #define ECA_VX 0x00020000 |
| #define ECA_PROTEXCI 0x00002000 |
| #define ECA_APIE 0x00000008 |
| #define ECA_SII 0x00000001 |
| __u32 eca; /* 0x004c */ |
| #define ICPT_INST 0x04 |
| #define ICPT_PROGI 0x08 |
| #define ICPT_INSTPROGI 0x0C |
| #define ICPT_EXTREQ 0x10 |
| #define ICPT_EXTINT 0x14 |
| #define ICPT_IOREQ 0x18 |
| #define ICPT_WAIT 0x1c |
| #define ICPT_VALIDITY 0x20 |
| #define ICPT_STOP 0x28 |
| #define ICPT_OPEREXC 0x2C |
| #define ICPT_PARTEXEC 0x38 |
| #define ICPT_IOINST 0x40 |
| #define ICPT_KSS 0x5c |
| #define ICPT_MCHKREQ 0x60 |
| #define ICPT_INT_ENABLE 0x64 |
| #define ICPT_PV_INSTR 0x68 |
| #define ICPT_PV_NOTIFY 0x6c |
| #define ICPT_PV_PREF 0x70 |
| __u8 icptcode; /* 0x0050 */ |
| __u8 icptstatus; /* 0x0051 */ |
| __u16 ihcpu; /* 0x0052 */ |
| __u8 reserved54; /* 0x0054 */ |
| #define IICTL_CODE_NONE 0x00 |
| #define IICTL_CODE_MCHK 0x01 |
| #define IICTL_CODE_EXT 0x02 |
| #define IICTL_CODE_IO 0x03 |
| #define IICTL_CODE_RESTART 0x04 |
| #define IICTL_CODE_SPECIFICATION 0x10 |
| #define IICTL_CODE_OPERAND 0x11 |
| __u8 iictl; /* 0x0055 */ |
| __u16 ipa; /* 0x0056 */ |
| __u32 ipb; /* 0x0058 */ |
| __u32 scaoh; /* 0x005c */ |
| #define FPF_BPBC 0x20 |
| __u8 fpf; /* 0x0060 */ |
| #define ECB_GS 0x40 |
| #define ECB_TE 0x10 |
| #define ECB_SPECI 0x08 |
| #define ECB_SRSI 0x04 |
| #define ECB_HOSTPROTINT 0x02 |
| #define ECB_PTF 0x01 |
| __u8 ecb; /* 0x0061 */ |
| #define ECB2_CMMA 0x80 |
| #define ECB2_IEP 0x20 |
| #define ECB2_PFMFI 0x08 |
| #define ECB2_ESCA 0x04 |
| #define ECB2_ZPCI_LSI 0x02 |
| __u8 ecb2; /* 0x0062 */ |
| #define ECB3_AISI 0x20 |
| #define ECB3_AISII 0x10 |
| #define ECB3_DEA 0x08 |
| #define ECB3_AES 0x04 |
| #define ECB3_RI 0x01 |
| __u8 ecb3; /* 0x0063 */ |
| #define ESCA_SCAOL_MASK ~0x3fU |
| __u32 scaol; /* 0x0064 */ |
| __u8 sdf; /* 0x0068 */ |
| __u8 epdx; /* 0x0069 */ |
| __u8 cpnc; /* 0x006a */ |
| __u8 reserved6b; /* 0x006b */ |
| __u32 todpr; /* 0x006c */ |
| #define GISA_FORMAT1 0x00000001 |
| __u32 gd; /* 0x0070 */ |
| __u8 reserved74[12]; /* 0x0074 */ |
| __u64 mso; /* 0x0080 */ |
| __u64 msl; /* 0x0088 */ |
| psw_t gpsw; /* 0x0090 */ |
| __u64 gg14; /* 0x00a0 */ |
| __u64 gg15; /* 0x00a8 */ |
| __u8 reservedb0[8]; /* 0x00b0 */ |
| #define HPID_KVM 0x4 |
| #define HPID_VSIE 0x5 |
| __u8 hpid; /* 0x00b8 */ |
| __u8 reservedb9[7]; /* 0x00b9 */ |
| union { |
| struct { |
| __u32 eiparams; /* 0x00c0 */ |
| __u16 extcpuaddr; /* 0x00c4 */ |
| __u16 eic; /* 0x00c6 */ |
| }; |
| __u64 mcic; /* 0x00c0 */ |
| } __packed; |
| __u32 reservedc8; /* 0x00c8 */ |
| union { |
| struct { |
| __u16 pgmilc; /* 0x00cc */ |
| __u16 iprcc; /* 0x00ce */ |
| }; |
| __u32 edc; /* 0x00cc */ |
| } __packed; |
| union { |
| struct { |
| __u32 dxc; /* 0x00d0 */ |
| __u16 mcn; /* 0x00d4 */ |
| __u8 perc; /* 0x00d6 */ |
| __u8 peratmid; /* 0x00d7 */ |
| }; |
| __u64 faddr; /* 0x00d0 */ |
| } __packed; |
| __u64 peraddr; /* 0x00d8 */ |
| __u8 eai; /* 0x00e0 */ |
| __u8 peraid; /* 0x00e1 */ |
| __u8 oai; /* 0x00e2 */ |
| __u8 armid; /* 0x00e3 */ |
| __u8 reservede4[4]; /* 0x00e4 */ |
| union { |
| __u64 tecmc; /* 0x00e8 */ |
| struct { |
| __u16 subchannel_id; /* 0x00e8 */ |
| __u16 subchannel_nr; /* 0x00ea */ |
| __u32 io_int_parm; /* 0x00ec */ |
| __u32 io_int_word; /* 0x00f0 */ |
| }; |
| } __packed; |
| __u8 reservedf4[8]; /* 0x00f4 */ |
| #define CRYCB_FORMAT_MASK 0x00000003 |
| #define CRYCB_FORMAT0 0x00000000 |
| #define CRYCB_FORMAT1 0x00000001 |
| #define CRYCB_FORMAT2 0x00000003 |
| __u32 crycbd; /* 0x00fc */ |
| __u64 gcr[16]; /* 0x0100 */ |
| union { |
| __u64 gbea; /* 0x0180 */ |
| __u64 sidad; |
| }; |
| __u8 reserved188[8]; /* 0x0188 */ |
| __u64 sdnxo; /* 0x0190 */ |
| __u8 reserved198[8]; /* 0x0198 */ |
| __u32 fac; /* 0x01a0 */ |
| __u8 reserved1a4[20]; /* 0x01a4 */ |
| __u64 cbrlo; /* 0x01b8 */ |
| __u8 reserved1c0[8]; /* 0x01c0 */ |
| #define ECD_HOSTREGMGMT 0x20000000 |
| #define ECD_MEF 0x08000000 |
| #define ECD_ETOKENF 0x02000000 |
| #define ECD_ECC 0x00200000 |
| __u32 ecd; /* 0x01c8 */ |
| __u8 reserved1cc[18]; /* 0x01cc */ |
| __u64 pp; /* 0x01de */ |
| __u8 reserved1e6[2]; /* 0x01e6 */ |
| __u64 itdba; /* 0x01e8 */ |
| __u64 riccbd; /* 0x01f0 */ |
| __u64 gvrd; /* 0x01f8 */ |
| } __packed __aligned(512); |
| |
| struct kvm_s390_itdb { |
| __u8 data[256]; |
| }; |
| |
| struct sie_page { |
| struct kvm_s390_sie_block sie_block; |
| struct mcck_volatile_info mcck_info; /* 0x0200 */ |
| __u8 reserved218[360]; /* 0x0218 */ |
| __u64 pv_grregs[16]; /* 0x0380 */ |
| __u8 reserved400[512]; /* 0x0400 */ |
| struct kvm_s390_itdb itdb; /* 0x0600 */ |
| __u8 reserved700[2304]; /* 0x0700 */ |
| }; |
| |
| struct kvm_vcpu_stat { |
| struct kvm_vcpu_stat_generic generic; |
| u64 exit_userspace; |
| u64 exit_null; |
| u64 exit_external_request; |
| u64 exit_io_request; |
| u64 exit_external_interrupt; |
| u64 exit_stop_request; |
| u64 exit_validity; |
| u64 exit_instruction; |
| u64 exit_pei; |
| u64 halt_no_poll_steal; |
| u64 instruction_lctl; |
| u64 instruction_lctlg; |
| u64 instruction_stctl; |
| u64 instruction_stctg; |
| u64 exit_program_interruption; |
| u64 exit_instr_and_program; |
| u64 exit_operation_exception; |
| u64 deliver_ckc; |
| u64 deliver_cputm; |
| u64 deliver_external_call; |
| u64 deliver_emergency_signal; |
| u64 deliver_service_signal; |
| u64 deliver_virtio; |
| u64 deliver_stop_signal; |
| u64 deliver_prefix_signal; |
| u64 deliver_restart_signal; |
| u64 deliver_program; |
| u64 deliver_io; |
| u64 deliver_machine_check; |
| u64 exit_wait_state; |
| u64 inject_ckc; |
| u64 inject_cputm; |
| u64 inject_external_call; |
| u64 inject_emergency_signal; |
| u64 inject_mchk; |
| u64 inject_pfault_init; |
| u64 inject_program; |
| u64 inject_restart; |
| u64 inject_set_prefix; |
| u64 inject_stop_signal; |
| u64 instruction_epsw; |
| u64 instruction_gs; |
| u64 instruction_io_other; |
| u64 instruction_lpsw; |
| u64 instruction_lpswe; |
| u64 instruction_pfmf; |
| u64 instruction_ptff; |
| u64 instruction_sck; |
| u64 instruction_sckpf; |
| u64 instruction_stidp; |
| u64 instruction_spx; |
| u64 instruction_stpx; |
| u64 instruction_stap; |
| u64 instruction_iske; |
| u64 instruction_ri; |
| u64 instruction_rrbe; |
| u64 instruction_sske; |
| u64 instruction_ipte_interlock; |
| u64 instruction_stsi; |
| u64 instruction_stfl; |
| u64 instruction_tb; |
| u64 instruction_tpi; |
| u64 instruction_tprot; |
| u64 instruction_tsch; |
| u64 instruction_sie; |
| u64 instruction_essa; |
| u64 instruction_sthyi; |
| u64 instruction_sigp_sense; |
| u64 instruction_sigp_sense_running; |
| u64 instruction_sigp_external_call; |
| u64 instruction_sigp_emergency; |
| u64 instruction_sigp_cond_emergency; |
| u64 instruction_sigp_start; |
| u64 instruction_sigp_stop; |
| u64 instruction_sigp_stop_store_status; |
| u64 instruction_sigp_store_status; |
| u64 instruction_sigp_store_adtl_status; |
| u64 instruction_sigp_arch; |
| u64 instruction_sigp_prefix; |
| u64 instruction_sigp_restart; |
| u64 instruction_sigp_init_cpu_reset; |
| u64 instruction_sigp_cpu_reset; |
| u64 instruction_sigp_unknown; |
| u64 instruction_diagnose_10; |
| u64 instruction_diagnose_44; |
| u64 instruction_diagnose_9c; |
| u64 diag_9c_ignored; |
| u64 diag_9c_forward; |
| u64 instruction_diagnose_258; |
| u64 instruction_diagnose_308; |
| u64 instruction_diagnose_500; |
| u64 instruction_diagnose_other; |
| u64 pfault_sync; |
| }; |
| |
| #define PGM_OPERATION 0x01 |
| #define PGM_PRIVILEGED_OP 0x02 |
| #define PGM_EXECUTE 0x03 |
| #define PGM_PROTECTION 0x04 |
| #define PGM_ADDRESSING 0x05 |
| #define PGM_SPECIFICATION 0x06 |
| #define PGM_DATA 0x07 |
| #define PGM_FIXED_POINT_OVERFLOW 0x08 |
| #define PGM_FIXED_POINT_DIVIDE 0x09 |
| #define PGM_DECIMAL_OVERFLOW 0x0a |
| #define PGM_DECIMAL_DIVIDE 0x0b |
| #define PGM_HFP_EXPONENT_OVERFLOW 0x0c |
| #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d |
| #define PGM_HFP_SIGNIFICANCE 0x0e |
| #define PGM_HFP_DIVIDE 0x0f |
| #define PGM_SEGMENT_TRANSLATION 0x10 |
| #define PGM_PAGE_TRANSLATION 0x11 |
| #define PGM_TRANSLATION_SPEC 0x12 |
| #define PGM_SPECIAL_OPERATION 0x13 |
| #define PGM_OPERAND 0x15 |
| #define PGM_TRACE_TABEL 0x16 |
| #define PGM_VECTOR_PROCESSING 0x1b |
| #define PGM_SPACE_SWITCH 0x1c |
| #define PGM_HFP_SQUARE_ROOT 0x1d |
| #define PGM_PC_TRANSLATION_SPEC 0x1f |
| #define PGM_AFX_TRANSLATION 0x20 |
| #define PGM_ASX_TRANSLATION 0x21 |
| #define PGM_LX_TRANSLATION 0x22 |
| #define PGM_EX_TRANSLATION 0x23 |
| #define PGM_PRIMARY_AUTHORITY 0x24 |
| #define PGM_SECONDARY_AUTHORITY 0x25 |
| #define PGM_LFX_TRANSLATION 0x26 |
| #define PGM_LSX_TRANSLATION 0x27 |
| #define PGM_ALET_SPECIFICATION 0x28 |
| #define PGM_ALEN_TRANSLATION 0x29 |
| #define PGM_ALE_SEQUENCE 0x2a |
| #define PGM_ASTE_VALIDITY 0x2b |
| #define PGM_ASTE_SEQUENCE 0x2c |
| #define PGM_EXTENDED_AUTHORITY 0x2d |
| #define PGM_LSTE_SEQUENCE 0x2e |
| #define PGM_ASTE_INSTANCE 0x2f |
| #define PGM_STACK_FULL 0x30 |
| #define PGM_STACK_EMPTY 0x31 |
| #define PGM_STACK_SPECIFICATION 0x32 |
| #define PGM_STACK_TYPE 0x33 |
| #define PGM_STACK_OPERATION 0x34 |
| #define PGM_ASCE_TYPE 0x38 |
| #define PGM_REGION_FIRST_TRANS 0x39 |
| #define PGM_REGION_SECOND_TRANS 0x3a |
| #define PGM_REGION_THIRD_TRANS 0x3b |
| #define PGM_MONITOR 0x40 |
| #define PGM_PER 0x80 |
| #define PGM_CRYPTO_OPERATION 0x119 |
| |
| /* irq types in ascend order of priorities */ |
| enum irq_types { |
| IRQ_PEND_SET_PREFIX = 0, |
| IRQ_PEND_RESTART, |
| IRQ_PEND_SIGP_STOP, |
| IRQ_PEND_IO_ISC_7, |
| IRQ_PEND_IO_ISC_6, |
| IRQ_PEND_IO_ISC_5, |
| IRQ_PEND_IO_ISC_4, |
| IRQ_PEND_IO_ISC_3, |
| IRQ_PEND_IO_ISC_2, |
| IRQ_PEND_IO_ISC_1, |
| IRQ_PEND_IO_ISC_0, |
| IRQ_PEND_VIRTIO, |
| IRQ_PEND_PFAULT_DONE, |
| IRQ_PEND_PFAULT_INIT, |
| IRQ_PEND_EXT_HOST, |
| IRQ_PEND_EXT_SERVICE, |
| IRQ_PEND_EXT_SERVICE_EV, |
| IRQ_PEND_EXT_TIMING, |
| IRQ_PEND_EXT_CPU_TIMER, |
| IRQ_PEND_EXT_CLOCK_COMP, |
| IRQ_PEND_EXT_EXTERNAL, |
| IRQ_PEND_EXT_EMERGENCY, |
| IRQ_PEND_EXT_MALFUNC, |
| IRQ_PEND_EXT_IRQ_KEY, |
| IRQ_PEND_MCHK_REP, |
| IRQ_PEND_PROG, |
| IRQ_PEND_SVC, |
| IRQ_PEND_MCHK_EX, |
| IRQ_PEND_COUNT |
| }; |
| |
| /* We have 2M for virtio device descriptor pages. Smallest amount of |
| * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 |
| */ |
| #define KVM_S390_MAX_VIRTIO_IRQS 87381 |
| |
| /* |
| * Repressible (non-floating) machine check interrupts |
| * subclass bits in MCIC |
| */ |
| #define MCHK_EXTD_BIT 58 |
| #define MCHK_DEGR_BIT 56 |
| #define MCHK_WARN_BIT 55 |
| #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ |
| (1UL << MCHK_EXTD_BIT) | \ |
| (1UL << MCHK_WARN_BIT)) |
| |
| /* Exigent machine check interrupts subclass bits in MCIC */ |
| #define MCHK_SD_BIT 63 |
| #define MCHK_PD_BIT 62 |
| #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) |
| |
| #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ |
| (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ |
| (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ |
| (1UL << IRQ_PEND_EXT_MALFUNC) | \ |
| (1UL << IRQ_PEND_EXT_EMERGENCY) | \ |
| (1UL << IRQ_PEND_EXT_EXTERNAL) | \ |
| (1UL << IRQ_PEND_EXT_TIMING) | \ |
| (1UL << IRQ_PEND_EXT_HOST) | \ |
| (1UL << IRQ_PEND_EXT_SERVICE) | \ |
| (1UL << IRQ_PEND_EXT_SERVICE_EV) | \ |
| (1UL << IRQ_PEND_VIRTIO) | \ |
| (1UL << IRQ_PEND_PFAULT_INIT) | \ |
| (1UL << IRQ_PEND_PFAULT_DONE)) |
| |
| #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ |
| (1UL << IRQ_PEND_IO_ISC_1) | \ |
| (1UL << IRQ_PEND_IO_ISC_2) | \ |
| (1UL << IRQ_PEND_IO_ISC_3) | \ |
| (1UL << IRQ_PEND_IO_ISC_4) | \ |
| (1UL << IRQ_PEND_IO_ISC_5) | \ |
| (1UL << IRQ_PEND_IO_ISC_6) | \ |
| (1UL << IRQ_PEND_IO_ISC_7)) |
| |
| #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ |
| (1UL << IRQ_PEND_MCHK_EX)) |
| |
| #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \ |
| (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ |
| (1UL << IRQ_PEND_EXT_EMERGENCY) | \ |
| (1UL << IRQ_PEND_EXT_EXTERNAL) | \ |
| (1UL << IRQ_PEND_EXT_SERVICE) | \ |
| (1UL << IRQ_PEND_EXT_SERVICE_EV)) |
| |
| struct kvm_s390_interrupt_info { |
| struct list_head list; |
| u64 type; |
| union { |
| struct kvm_s390_io_info io; |
| struct kvm_s390_ext_info ext; |
| struct kvm_s390_pgm_info pgm; |
| struct kvm_s390_emerg_info emerg; |
| struct kvm_s390_extcall_info extcall; |
| struct kvm_s390_prefix_info prefix; |
| struct kvm_s390_stop_info stop; |
| struct kvm_s390_mchk_info mchk; |
| }; |
| }; |
| |
| struct kvm_s390_irq_payload { |
| struct kvm_s390_io_info io; |
| struct kvm_s390_ext_info ext; |
| struct kvm_s390_pgm_info pgm; |
| struct kvm_s390_emerg_info emerg; |
| struct kvm_s390_extcall_info extcall; |
| struct kvm_s390_prefix_info prefix; |
| struct kvm_s390_stop_info stop; |
| struct kvm_s390_mchk_info mchk; |
| }; |
| |
| struct kvm_s390_local_interrupt { |
| spinlock_t lock; |
| DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); |
| struct kvm_s390_irq_payload irq; |
| unsigned long pending_irqs; |
| }; |
| |
| #define FIRQ_LIST_IO_ISC_0 0 |
| #define FIRQ_LIST_IO_ISC_1 1 |
| #define FIRQ_LIST_IO_ISC_2 2 |
| #define FIRQ_LIST_IO_ISC_3 3 |
| #define FIRQ_LIST_IO_ISC_4 4 |
| #define FIRQ_LIST_IO_ISC_5 5 |
| #define FIRQ_LIST_IO_ISC_6 6 |
| #define FIRQ_LIST_IO_ISC_7 7 |
| #define FIRQ_LIST_PFAULT 8 |
| #define FIRQ_LIST_VIRTIO 9 |
| #define FIRQ_LIST_COUNT 10 |
| #define FIRQ_CNTR_IO 0 |
| #define FIRQ_CNTR_SERVICE 1 |
| #define FIRQ_CNTR_VIRTIO 2 |
| #define FIRQ_CNTR_PFAULT 3 |
| #define FIRQ_MAX_COUNT 4 |
| |
| /* mask the AIS mode for a given ISC */ |
| #define AIS_MODE_MASK(isc) (0x80 >> isc) |
| |
| #define KVM_S390_AIS_MODE_ALL 0 |
| #define KVM_S390_AIS_MODE_SINGLE 1 |
| |
| struct kvm_s390_float_interrupt { |
| unsigned long pending_irqs; |
| unsigned long masked_irqs; |
| spinlock_t lock; |
| struct list_head lists[FIRQ_LIST_COUNT]; |
| int counters[FIRQ_MAX_COUNT]; |
| struct kvm_s390_mchk_info mchk; |
| struct kvm_s390_ext_info srv_signal; |
| int next_rr_cpu; |
| struct mutex ais_lock; |
| u8 simm; |
| u8 nimm; |
| }; |
| |
| struct kvm_hw_wp_info_arch { |
| unsigned long addr; |
| unsigned long phys_addr; |
| int len; |
| char *old_data; |
| }; |
| |
| struct kvm_hw_bp_info_arch { |
| unsigned long addr; |
| int len; |
| }; |
| |
| /* |
| * Only the upper 16 bits of kvm_guest_debug->control are arch specific. |
| * Further KVM_GUESTDBG flags which an be used from userspace can be found in |
| * arch/s390/include/uapi/asm/kvm.h |
| */ |
| #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 |
| |
| #define guestdbg_enabled(vcpu) \ |
| (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) |
| #define guestdbg_sstep_enabled(vcpu) \ |
| (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) |
| #define guestdbg_hw_bp_enabled(vcpu) \ |
| (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) |
| #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ |
| (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) |
| |
| #define KVM_GUESTDBG_VALID_MASK \ |
| (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\ |
| KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING) |
| |
| struct kvm_guestdbg_info_arch { |
| unsigned long cr0; |
| unsigned long cr9; |
| unsigned long cr10; |
| unsigned long cr11; |
| struct kvm_hw_bp_info_arch *hw_bp_info; |
| struct kvm_hw_wp_info_arch *hw_wp_info; |
| int nr_hw_bp; |
| int nr_hw_wp; |
| unsigned long last_bp; |
| }; |
| |
| struct kvm_s390_pv_vcpu { |
| u64 handle; |
| unsigned long stor_base; |
| }; |
| |
| struct kvm_vcpu_arch { |
| struct kvm_s390_sie_block *sie_block; |
| /* if vsie is active, currently executed shadow sie control block */ |
| struct kvm_s390_sie_block *vsie_block; |
| unsigned int host_acrs[NUM_ACRS]; |
| struct gs_cb *host_gscb; |
| struct fpu host_fpregs; |
| struct kvm_s390_local_interrupt local_int; |
| struct hrtimer ckc_timer; |
| struct kvm_s390_pgm_info pgm; |
| struct gmap *gmap; |
| /* backup location for the currently enabled gmap when scheduled out */ |
| struct gmap *enabled_gmap; |
| struct kvm_guestdbg_info_arch guestdbg; |
| unsigned long pfault_token; |
| unsigned long pfault_select; |
| unsigned long pfault_compare; |
| bool cputm_enabled; |
| /* |
| * The seqcount protects updates to cputm_start and sie_block.cputm, |
| * this way we can have non-blocking reads with consistent values. |
| * Only the owning VCPU thread (vcpu->cpu) is allowed to change these |
| * values and to start/stop/enable/disable cpu timer accounting. |
| */ |
| seqcount_t cputm_seqcount; |
| __u64 cputm_start; |
| bool gs_enabled; |
| bool skey_enabled; |
| struct kvm_s390_pv_vcpu pv; |
| union diag318_info diag318_info; |
| }; |
| |
| struct kvm_vm_stat { |
| struct kvm_vm_stat_generic generic; |
| u64 inject_io; |
| u64 inject_float_mchk; |
| u64 inject_pfault_done; |
| u64 inject_service_signal; |
| u64 inject_virtio; |
| u64 aen_forward; |
| u64 gmap_shadow_create; |
| u64 gmap_shadow_reuse; |
| u64 gmap_shadow_r1_entry; |
| u64 gmap_shadow_r2_entry; |
| u64 gmap_shadow_r3_entry; |
| u64 gmap_shadow_sg_entry; |
| u64 gmap_shadow_pg_entry; |
| }; |
| |
| struct kvm_arch_memory_slot { |
| }; |
| |
| struct s390_map_info { |
| struct list_head list; |
| __u64 guest_addr; |
| __u64 addr; |
| struct page *page; |
| }; |
| |
| struct s390_io_adapter { |
| unsigned int id; |
| int isc; |
| bool maskable; |
| bool masked; |
| bool swap; |
| bool suppressible; |
| }; |
| |
| #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) |
| #define MAX_S390_ADAPTER_MAPS 256 |
| |
| /* maximum size of facilities and facility mask is 2k bytes */ |
| #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) |
| #define S390_ARCH_FAC_LIST_SIZE_U64 \ |
| (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) |
| #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE |
| #define S390_ARCH_FAC_MASK_SIZE_U64 \ |
| (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) |
| |
| struct kvm_s390_cpu_model { |
| /* facility mask supported by kvm & hosting machine */ |
| __u64 fac_mask[S390_ARCH_FAC_MASK_SIZE_U64]; |
| struct kvm_s390_vm_cpu_subfunc subfuncs; |
| /* facility list requested by guest (in dma page) */ |
| __u64 *fac_list; |
| u64 cpuid; |
| unsigned short ibc; |
| /* subset of available UV-features for pv-guests enabled by user space */ |
| struct kvm_s390_vm_cpu_uv_feat uv_feat_guest; |
| }; |
| |
| typedef int (*crypto_hook)(struct kvm_vcpu *vcpu); |
| |
| struct kvm_s390_crypto { |
| struct kvm_s390_crypto_cb *crycb; |
| struct rw_semaphore pqap_hook_rwsem; |
| crypto_hook *pqap_hook; |
| __u32 crycbd; |
| __u8 aes_kw; |
| __u8 dea_kw; |
| __u8 apie; |
| }; |
| |
| #define APCB0_MASK_SIZE 1 |
| struct kvm_s390_apcb0 { |
| __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */ |
| __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */ |
| __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */ |
| __u64 reserved18; /* 0x0018 */ |
| }; |
| |
| #define APCB1_MASK_SIZE 4 |
| struct kvm_s390_apcb1 { |
| __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */ |
| __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */ |
| __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */ |
| __u64 reserved60[4]; /* 0x0060 */ |
| }; |
| |
| struct kvm_s390_crypto_cb { |
| struct kvm_s390_apcb0 apcb0; /* 0x0000 */ |
| __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */ |
| __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ |
| __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ |
| struct kvm_s390_apcb1 apcb1; /* 0x0080 */ |
| }; |
| |
| struct kvm_s390_gisa { |
| union { |
| struct { /* common to all formats */ |
| u32 next_alert; |
| u8 ipm; |
| u8 reserved01[2]; |
| u8 iam; |
| }; |
| struct { /* format 0 */ |
| u32 next_alert; |
| u8 ipm; |
| u8 reserved01; |
| u8 : 6; |
| u8 g : 1; |
| u8 c : 1; |
| u8 iam; |
| u8 reserved02[4]; |
| u32 airq_count; |
| } g0; |
| struct { /* format 1 */ |
| u32 next_alert; |
| u8 ipm; |
| u8 simm; |
| u8 nimm; |
| u8 iam; |
| u8 aism[8]; |
| u8 : 6; |
| u8 g : 1; |
| u8 c : 1; |
| u8 reserved03[11]; |
| u32 airq_count; |
| } g1; |
| struct { |
| u64 word[4]; |
| } u64; |
| }; |
| }; |
| |
| struct kvm_s390_gib { |
| u32 alert_list_origin; |
| u32 reserved01; |
| u8:5; |
| u8 nisc:3; |
| u8 reserved03[3]; |
| u32 reserved04[5]; |
| }; |
| |
| /* |
| * sie_page2 has to be allocated as DMA because fac_list, crycb and |
| * gisa need 31bit addresses in the sie control block. |
| */ |
| struct sie_page2 { |
| __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */ |
| struct kvm_s390_crypto_cb crycb; /* 0x0800 */ |
| struct kvm_s390_gisa gisa; /* 0x0900 */ |
| struct kvm *kvm; /* 0x0920 */ |
| u8 reserved928[0x1000 - 0x928]; /* 0x0928 */ |
| }; |
| |
| struct kvm_s390_vsie { |
| struct mutex mutex; |
| struct radix_tree_root addr_to_page; |
| int page_count; |
| int next; |
| struct page *pages[KVM_MAX_VCPUS]; |
| }; |
| |
| struct kvm_s390_gisa_iam { |
| u8 mask; |
| spinlock_t ref_lock; |
| u32 ref_count[MAX_ISC + 1]; |
| }; |
| |
| struct kvm_s390_gisa_interrupt { |
| struct kvm_s390_gisa *origin; |
| struct kvm_s390_gisa_iam alert; |
| struct hrtimer timer; |
| u64 expires; |
| DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS); |
| }; |
| |
| struct kvm_s390_pv { |
| u64 handle; |
| u64 guest_len; |
| unsigned long stor_base; |
| void *stor_var; |
| bool dumping; |
| void *set_aside; |
| struct list_head need_cleanup; |
| struct mmu_notifier mmu_notifier; |
| }; |
| |
| struct kvm_arch{ |
| void *sca; |
| int use_esca; |
| rwlock_t sca_lock; |
| debug_info_t *dbf; |
| struct kvm_s390_float_interrupt float_int; |
| struct kvm_device *flic; |
| struct gmap *gmap; |
| unsigned long mem_limit; |
| int css_support; |
| int use_irqchip; |
| int use_cmma; |
| int use_pfmfi; |
| int use_skf; |
| int use_zpci_interp; |
| int user_cpu_state_ctrl; |
| int user_sigp; |
| int user_stsi; |
| int user_instr0; |
| struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; |
| wait_queue_head_t ipte_wq; |
| int ipte_lock_count; |
| struct mutex ipte_mutex; |
| spinlock_t start_stop_lock; |
| struct sie_page2 *sie_page2; |
| struct kvm_s390_cpu_model model; |
| struct kvm_s390_crypto crypto; |
| struct kvm_s390_vsie vsie; |
| u8 epdx; |
| u64 epoch; |
| int migration_mode; |
| atomic64_t cmma_dirty_pages; |
| /* subset of available cpu features enabled by user space */ |
| DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); |
| /* indexed by vcpu_idx */ |
| DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS); |
| struct kvm_s390_gisa_interrupt gisa_int; |
| struct kvm_s390_pv pv; |
| struct list_head kzdev_list; |
| spinlock_t kzdev_list_lock; |
| }; |
| |
| #define KVM_HVA_ERR_BAD (-1UL) |
| #define KVM_HVA_ERR_RO_BAD (-2UL) |
| |
| static inline bool kvm_is_error_hva(unsigned long addr) |
| { |
| return IS_ERR_VALUE(addr); |
| } |
| |
| #define ASYNC_PF_PER_VCPU 64 |
| struct kvm_arch_async_pf { |
| unsigned long pfault_token; |
| }; |
| |
| bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu); |
| |
| void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, |
| struct kvm_async_pf *work); |
| |
| bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, |
| struct kvm_async_pf *work); |
| |
| void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, |
| struct kvm_async_pf *work); |
| |
| static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {} |
| |
| void kvm_arch_crypto_clear_masks(struct kvm *kvm); |
| void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, |
| unsigned long *aqm, unsigned long *adm); |
| |
| int __sie64a(phys_addr_t sie_block_phys, struct kvm_s390_sie_block *sie_block, u64 *rsa); |
| |
| static inline int sie64a(struct kvm_s390_sie_block *sie_block, u64 *rsa) |
| { |
| return __sie64a(virt_to_phys(sie_block), sie_block, rsa); |
| } |
| |
| extern char sie_exit; |
| |
| bool kvm_s390_pv_is_protected(struct kvm *kvm); |
| bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu); |
| |
| extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); |
| extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); |
| |
| static inline void kvm_arch_sync_events(struct kvm *kvm) {} |
| static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} |
| static inline void kvm_arch_free_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *slot) {} |
| static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} |
| static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} |
| static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *slot) {} |
| static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} |
| static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} |
| |
| #define __KVM_HAVE_ARCH_VM_FREE |
| void kvm_arch_free_vm(struct kvm *kvm); |
| |
| struct zpci_kvm_hook { |
| int (*kvm_register)(void *opaque, struct kvm *kvm); |
| void (*kvm_unregister)(void *opaque); |
| }; |
| |
| extern struct zpci_kvm_hook zpci_kvm_hook; |
| |
| #endif |