mirror of https://github.com/torvalds/linux.git
747 lines
20 KiB
C
747 lines
20 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* definition for kernel virtual machines on s390
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*
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* Copyright IBM Corp. 2008, 2018
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*
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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*/
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#ifndef ASM_KVM_HOST_H
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#define ASM_KVM_HOST_H
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#include <linux/types.h>
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#include <linux/hrtimer.h>
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#include <linux/interrupt.h>
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#include <linux/kvm_types.h>
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#include <linux/kvm.h>
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#include <linux/seqlock.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/mmu_notifier.h>
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#include <asm/kvm_host_types.h>
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#include <asm/debug.h>
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#include <asm/cpu.h>
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#include <asm/fpu.h>
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#include <asm/isc.h>
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#include <asm/guarded_storage.h>
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#define KVM_MAX_VCPUS 255
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#define KVM_INTERNAL_MEM_SLOTS 1
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/*
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* These seem to be used for allocating ->chip in the routing table, which we
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* don't use. 1 is as small as we can get to reduce the needed memory. If we
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* need to look at ->chip later on, we'll need to revisit this.
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*/
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#define KVM_NR_IRQCHIPS 1
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#define KVM_IRQCHIP_NUM_PINS 1
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#define KVM_HALT_POLL_NS_DEFAULT 50000
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/* s390-specific vcpu->requests bit members */
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#define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
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#define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
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#define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
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#define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
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#define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
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#define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5)
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#define KVM_REQ_REFRESH_GUEST_PREFIX \
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KVM_ARCH_REQ_FLAGS(6, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
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struct kvm_vcpu_stat {
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struct kvm_vcpu_stat_generic generic;
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u64 exit_userspace;
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u64 exit_null;
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u64 exit_external_request;
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u64 exit_io_request;
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u64 exit_external_interrupt;
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u64 exit_stop_request;
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u64 exit_validity;
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u64 exit_instruction;
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u64 exit_pei;
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u64 halt_no_poll_steal;
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u64 instruction_lctl;
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u64 instruction_lctlg;
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u64 instruction_stctl;
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u64 instruction_stctg;
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u64 exit_program_interruption;
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u64 exit_instr_and_program;
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u64 exit_operation_exception;
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u64 deliver_ckc;
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u64 deliver_cputm;
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u64 deliver_external_call;
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u64 deliver_emergency_signal;
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u64 deliver_service_signal;
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u64 deliver_virtio;
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u64 deliver_stop_signal;
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u64 deliver_prefix_signal;
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u64 deliver_restart_signal;
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u64 deliver_program;
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u64 deliver_io;
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u64 deliver_machine_check;
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u64 exit_wait_state;
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u64 inject_ckc;
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u64 inject_cputm;
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u64 inject_external_call;
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u64 inject_emergency_signal;
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u64 inject_mchk;
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u64 inject_pfault_init;
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u64 inject_program;
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u64 inject_restart;
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u64 inject_set_prefix;
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u64 inject_stop_signal;
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u64 instruction_epsw;
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u64 instruction_gs;
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u64 instruction_io_other;
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u64 instruction_lpsw;
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u64 instruction_lpswe;
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u64 instruction_lpswey;
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u64 instruction_pfmf;
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u64 instruction_ptff;
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u64 instruction_sck;
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u64 instruction_sckpf;
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u64 instruction_stidp;
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u64 instruction_spx;
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u64 instruction_stpx;
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u64 instruction_stap;
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u64 instruction_iske;
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u64 instruction_ri;
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u64 instruction_rrbe;
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u64 instruction_sske;
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u64 instruction_ipte_interlock;
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u64 instruction_stsi;
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u64 instruction_stfl;
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u64 instruction_tb;
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u64 instruction_tpi;
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u64 instruction_tprot;
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u64 instruction_tsch;
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u64 instruction_sie;
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u64 instruction_essa;
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u64 instruction_sthyi;
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u64 instruction_sigp_sense;
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u64 instruction_sigp_sense_running;
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u64 instruction_sigp_external_call;
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u64 instruction_sigp_emergency;
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u64 instruction_sigp_cond_emergency;
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u64 instruction_sigp_start;
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u64 instruction_sigp_stop;
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u64 instruction_sigp_stop_store_status;
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u64 instruction_sigp_store_status;
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u64 instruction_sigp_store_adtl_status;
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u64 instruction_sigp_arch;
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u64 instruction_sigp_prefix;
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u64 instruction_sigp_restart;
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u64 instruction_sigp_init_cpu_reset;
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u64 instruction_sigp_cpu_reset;
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u64 instruction_sigp_unknown;
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u64 instruction_diagnose_10;
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u64 instruction_diagnose_44;
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u64 instruction_diagnose_9c;
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u64 diag_9c_ignored;
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u64 diag_9c_forward;
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u64 instruction_diagnose_258;
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u64 instruction_diagnose_308;
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u64 instruction_diagnose_500;
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u64 instruction_diagnose_other;
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u64 pfault_sync;
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u64 signal_exits;
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};
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#define PGM_OPERATION 0x01
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#define PGM_PRIVILEGED_OP 0x02
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#define PGM_EXECUTE 0x03
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#define PGM_PROTECTION 0x04
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#define PGM_ADDRESSING 0x05
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#define PGM_SPECIFICATION 0x06
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#define PGM_DATA 0x07
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#define PGM_FIXED_POINT_OVERFLOW 0x08
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#define PGM_FIXED_POINT_DIVIDE 0x09
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#define PGM_DECIMAL_OVERFLOW 0x0a
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#define PGM_DECIMAL_DIVIDE 0x0b
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#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
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#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
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#define PGM_HFP_SIGNIFICANCE 0x0e
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#define PGM_HFP_DIVIDE 0x0f
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#define PGM_SEGMENT_TRANSLATION 0x10
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#define PGM_PAGE_TRANSLATION 0x11
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#define PGM_TRANSLATION_SPEC 0x12
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#define PGM_SPECIAL_OPERATION 0x13
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#define PGM_OPERAND 0x15
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#define PGM_TRACE_TABEL 0x16
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#define PGM_VECTOR_PROCESSING 0x1b
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#define PGM_SPACE_SWITCH 0x1c
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#define PGM_HFP_SQUARE_ROOT 0x1d
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#define PGM_PC_TRANSLATION_SPEC 0x1f
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#define PGM_AFX_TRANSLATION 0x20
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#define PGM_ASX_TRANSLATION 0x21
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#define PGM_LX_TRANSLATION 0x22
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#define PGM_EX_TRANSLATION 0x23
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#define PGM_PRIMARY_AUTHORITY 0x24
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#define PGM_SECONDARY_AUTHORITY 0x25
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#define PGM_LFX_TRANSLATION 0x26
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#define PGM_LSX_TRANSLATION 0x27
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#define PGM_ALET_SPECIFICATION 0x28
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#define PGM_ALEN_TRANSLATION 0x29
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#define PGM_ALE_SEQUENCE 0x2a
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#define PGM_ASTE_VALIDITY 0x2b
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#define PGM_ASTE_SEQUENCE 0x2c
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#define PGM_EXTENDED_AUTHORITY 0x2d
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#define PGM_LSTE_SEQUENCE 0x2e
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#define PGM_ASTE_INSTANCE 0x2f
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#define PGM_STACK_FULL 0x30
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#define PGM_STACK_EMPTY 0x31
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#define PGM_STACK_SPECIFICATION 0x32
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#define PGM_STACK_TYPE 0x33
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#define PGM_STACK_OPERATION 0x34
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#define PGM_ASCE_TYPE 0x38
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#define PGM_REGION_FIRST_TRANS 0x39
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#define PGM_REGION_SECOND_TRANS 0x3a
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#define PGM_REGION_THIRD_TRANS 0x3b
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#define PGM_SECURE_STORAGE_ACCESS 0x3d
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#define PGM_NON_SECURE_STORAGE_ACCESS 0x3e
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#define PGM_SECURE_STORAGE_VIOLATION 0x3f
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#define PGM_MONITOR 0x40
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#define PGM_PER 0x80
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#define PGM_CRYPTO_OPERATION 0x119
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/* irq types in ascend order of priorities */
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enum irq_types {
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IRQ_PEND_SET_PREFIX = 0,
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IRQ_PEND_RESTART,
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IRQ_PEND_SIGP_STOP,
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IRQ_PEND_IO_ISC_7,
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IRQ_PEND_IO_ISC_6,
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IRQ_PEND_IO_ISC_5,
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IRQ_PEND_IO_ISC_4,
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IRQ_PEND_IO_ISC_3,
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IRQ_PEND_IO_ISC_2,
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IRQ_PEND_IO_ISC_1,
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IRQ_PEND_IO_ISC_0,
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IRQ_PEND_VIRTIO,
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IRQ_PEND_PFAULT_DONE,
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IRQ_PEND_PFAULT_INIT,
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IRQ_PEND_EXT_HOST,
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IRQ_PEND_EXT_SERVICE,
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IRQ_PEND_EXT_SERVICE_EV,
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IRQ_PEND_EXT_TIMING,
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IRQ_PEND_EXT_CPU_TIMER,
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IRQ_PEND_EXT_CLOCK_COMP,
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IRQ_PEND_EXT_EXTERNAL,
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IRQ_PEND_EXT_EMERGENCY,
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IRQ_PEND_EXT_MALFUNC,
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IRQ_PEND_EXT_IRQ_KEY,
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IRQ_PEND_MCHK_REP,
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IRQ_PEND_PROG,
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IRQ_PEND_SVC,
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IRQ_PEND_MCHK_EX,
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IRQ_PEND_COUNT
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};
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/* We have 2M for virtio device descriptor pages. Smallest amount of
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* memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
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*/
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#define KVM_S390_MAX_VIRTIO_IRQS 87381
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/*
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* Repressible (non-floating) machine check interrupts
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* subclass bits in MCIC
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*/
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#define MCHK_EXTD_BIT 58
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#define MCHK_DEGR_BIT 56
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#define MCHK_WARN_BIT 55
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#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
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(1UL << MCHK_EXTD_BIT) | \
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(1UL << MCHK_WARN_BIT))
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/* Exigent machine check interrupts subclass bits in MCIC */
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#define MCHK_SD_BIT 63
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#define MCHK_PD_BIT 62
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#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
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#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
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(1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
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(1UL << IRQ_PEND_EXT_CPU_TIMER) | \
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(1UL << IRQ_PEND_EXT_MALFUNC) | \
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(1UL << IRQ_PEND_EXT_EMERGENCY) | \
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(1UL << IRQ_PEND_EXT_EXTERNAL) | \
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(1UL << IRQ_PEND_EXT_TIMING) | \
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(1UL << IRQ_PEND_EXT_HOST) | \
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(1UL << IRQ_PEND_EXT_SERVICE) | \
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(1UL << IRQ_PEND_EXT_SERVICE_EV) | \
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(1UL << IRQ_PEND_VIRTIO) | \
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(1UL << IRQ_PEND_PFAULT_INIT) | \
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(1UL << IRQ_PEND_PFAULT_DONE))
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#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
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(1UL << IRQ_PEND_IO_ISC_1) | \
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(1UL << IRQ_PEND_IO_ISC_2) | \
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(1UL << IRQ_PEND_IO_ISC_3) | \
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(1UL << IRQ_PEND_IO_ISC_4) | \
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(1UL << IRQ_PEND_IO_ISC_5) | \
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(1UL << IRQ_PEND_IO_ISC_6) | \
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(1UL << IRQ_PEND_IO_ISC_7))
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#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
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(1UL << IRQ_PEND_MCHK_EX))
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#define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \
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(1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
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(1UL << IRQ_PEND_EXT_EMERGENCY) | \
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(1UL << IRQ_PEND_EXT_EXTERNAL) | \
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(1UL << IRQ_PEND_EXT_SERVICE) | \
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(1UL << IRQ_PEND_EXT_SERVICE_EV))
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struct kvm_s390_interrupt_info {
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struct list_head list;
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u64 type;
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union {
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struct kvm_s390_io_info io;
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struct kvm_s390_ext_info ext;
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struct kvm_s390_pgm_info pgm;
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struct kvm_s390_emerg_info emerg;
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struct kvm_s390_extcall_info extcall;
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struct kvm_s390_prefix_info prefix;
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struct kvm_s390_stop_info stop;
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struct kvm_s390_mchk_info mchk;
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};
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};
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struct kvm_s390_irq_payload {
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struct kvm_s390_io_info io;
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struct kvm_s390_ext_info ext;
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struct kvm_s390_pgm_info pgm;
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struct kvm_s390_emerg_info emerg;
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struct kvm_s390_extcall_info extcall;
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struct kvm_s390_prefix_info prefix;
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struct kvm_s390_stop_info stop;
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struct kvm_s390_mchk_info mchk;
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};
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struct kvm_s390_local_interrupt {
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spinlock_t lock;
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DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
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struct kvm_s390_irq_payload irq;
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unsigned long pending_irqs;
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};
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#define FIRQ_LIST_IO_ISC_0 0
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#define FIRQ_LIST_IO_ISC_1 1
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#define FIRQ_LIST_IO_ISC_2 2
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#define FIRQ_LIST_IO_ISC_3 3
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#define FIRQ_LIST_IO_ISC_4 4
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#define FIRQ_LIST_IO_ISC_5 5
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#define FIRQ_LIST_IO_ISC_6 6
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#define FIRQ_LIST_IO_ISC_7 7
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#define FIRQ_LIST_PFAULT 8
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#define FIRQ_LIST_VIRTIO 9
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#define FIRQ_LIST_COUNT 10
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#define FIRQ_CNTR_IO 0
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#define FIRQ_CNTR_SERVICE 1
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#define FIRQ_CNTR_VIRTIO 2
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#define FIRQ_CNTR_PFAULT 3
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#define FIRQ_MAX_COUNT 4
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/* mask the AIS mode for a given ISC */
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#define AIS_MODE_MASK(isc) (0x80 >> isc)
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#define KVM_S390_AIS_MODE_ALL 0
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#define KVM_S390_AIS_MODE_SINGLE 1
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struct kvm_s390_float_interrupt {
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unsigned long pending_irqs;
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unsigned long masked_irqs;
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spinlock_t lock;
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struct list_head lists[FIRQ_LIST_COUNT];
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int counters[FIRQ_MAX_COUNT];
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struct kvm_s390_mchk_info mchk;
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struct kvm_s390_ext_info srv_signal;
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int last_sleep_cpu;
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struct mutex ais_lock;
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u8 simm;
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u8 nimm;
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};
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struct kvm_hw_wp_info_arch {
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unsigned long addr;
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unsigned long phys_addr;
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int len;
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char *old_data;
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};
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struct kvm_hw_bp_info_arch {
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unsigned long addr;
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int len;
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};
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/*
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* Only the upper 16 bits of kvm_guest_debug->control are arch specific.
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* Further KVM_GUESTDBG flags which an be used from userspace can be found in
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* arch/s390/include/uapi/asm/kvm.h
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*/
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#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
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#define guestdbg_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
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#define guestdbg_sstep_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
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#define guestdbg_hw_bp_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
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#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
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(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
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#define KVM_GUESTDBG_VALID_MASK \
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(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\
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KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING)
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struct kvm_guestdbg_info_arch {
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unsigned long cr0;
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unsigned long cr9;
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unsigned long cr10;
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unsigned long cr11;
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struct kvm_hw_bp_info_arch *hw_bp_info;
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struct kvm_hw_wp_info_arch *hw_wp_info;
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int nr_hw_bp;
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int nr_hw_wp;
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unsigned long last_bp;
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};
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struct kvm_s390_pv_vcpu {
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u64 handle;
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unsigned long stor_base;
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};
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struct kvm_vcpu_arch {
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struct kvm_s390_sie_block *sie_block;
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/* if vsie is active, currently executed shadow sie control block */
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struct kvm_s390_sie_block *vsie_block;
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unsigned int host_acrs[NUM_ACRS];
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struct gs_cb *host_gscb;
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struct kvm_s390_local_interrupt local_int;
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struct hrtimer ckc_timer;
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struct kvm_s390_pgm_info pgm;
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struct gmap *gmap;
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struct kvm_guestdbg_info_arch guestdbg;
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unsigned long pfault_token;
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unsigned long pfault_select;
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unsigned long pfault_compare;
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bool cputm_enabled;
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/*
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* The seqcount protects updates to cputm_start and sie_block.cputm,
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* this way we can have non-blocking reads with consistent values.
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* Only the owning VCPU thread (vcpu->cpu) is allowed to change these
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* values and to start/stop/enable/disable cpu timer accounting.
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*/
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seqcount_t cputm_seqcount;
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__u64 cputm_start;
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bool gs_enabled;
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bool skey_enabled;
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/* Indicator if the access registers have been loaded from guest */
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bool acrs_loaded;
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struct kvm_s390_pv_vcpu pv;
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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 vsie_page;
|
|
|
|
struct kvm_s390_vsie {
|
|
struct mutex mutex;
|
|
struct radix_tree_root addr_to_page;
|
|
int page_count;
|
|
int next;
|
|
struct vsie_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 {
|
|
struct esca_block *sca;
|
|
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;
|
|
int user_operexec;
|
|
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,
|
|
unsigned long gasce);
|
|
|
|
static inline int sie64a(struct kvm_s390_sie_block *sie_block, u64 *rsa, unsigned long gasce)
|
|
{
|
|
return __sie64a(virt_to_phys(sie_block), sie_block, rsa, gasce);
|
|
}
|
|
|
|
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_enter_exit_sie(struct kvm_s390_sie_block *scb,
|
|
u64 *gprs, unsigned long gasce);
|
|
|
|
extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc);
|
|
extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);
|
|
|
|
bool kvm_s390_is_gpa_in_memslot(struct kvm *kvm, gpa_t gpa);
|
|
|
|
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
|