878 lines
23 KiB
C
878 lines
23 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_host.h>
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#include <linux/kvm.h>
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#include <linux/seqlock.h>
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#include <asm/debug.h>
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#include <asm/cpu.h>
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#include <asm/fpu/api.h>
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#include <asm/isc.h>
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#include <asm/guarded_storage.h>
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#define KVM_S390_BSCA_CPU_SLOTS 64
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#define KVM_S390_ESCA_CPU_SLOTS 248
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#define KVM_MAX_VCPUS 255
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#define KVM_USER_MEM_SLOTS 32
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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 80000
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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 SIGP_CTRL_C 0x80
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#define SIGP_CTRL_SCN_MASK 0x3f
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union bsca_sigp_ctrl {
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__u8 value;
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struct {
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__u8 c : 1;
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__u8 r : 1;
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__u8 scn : 6;
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};
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};
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union esca_sigp_ctrl {
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__u16 value;
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struct {
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__u8 c : 1;
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__u8 reserved: 7;
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__u8 scn;
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};
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};
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struct esca_entry {
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union esca_sigp_ctrl sigp_ctrl;
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__u16 reserved1[3];
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__u64 sda;
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__u64 reserved2[6];
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};
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struct bsca_entry {
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__u8 reserved0;
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union bsca_sigp_ctrl sigp_ctrl;
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__u16 reserved[3];
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__u64 sda;
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__u64 reserved2[2];
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};
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union ipte_control {
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unsigned long val;
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struct {
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unsigned long k : 1;
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unsigned long kh : 31;
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unsigned long kg : 32;
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};
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};
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struct bsca_block {
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union ipte_control ipte_control;
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__u64 reserved[5];
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__u64 mcn;
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__u64 reserved2;
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struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
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};
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struct esca_block {
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union ipte_control ipte_control;
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__u64 reserved1[7];
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__u64 mcn[4];
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__u64 reserved2[20];
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struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
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};
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/*
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* This struct is used to store some machine check info from lowcore
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* for machine checks that happen while the guest is running.
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* This info in host's lowcore might be overwritten by a second machine
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* check from host when host is in the machine check's high-level handling.
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* The size is 24 bytes.
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*/
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struct mcck_volatile_info {
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__u64 mcic;
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__u64 failing_storage_address;
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__u32 ext_damage_code;
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__u32 reserved;
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};
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#define CPUSTAT_STOPPED 0x80000000
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#define CPUSTAT_WAIT 0x10000000
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#define CPUSTAT_ECALL_PEND 0x08000000
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#define CPUSTAT_STOP_INT 0x04000000
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#define CPUSTAT_IO_INT 0x02000000
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#define CPUSTAT_EXT_INT 0x01000000
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#define CPUSTAT_RUNNING 0x00800000
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#define CPUSTAT_RETAINED 0x00400000
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#define CPUSTAT_TIMING_SUB 0x00020000
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#define CPUSTAT_SIE_SUB 0x00010000
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#define CPUSTAT_RRF 0x00008000
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#define CPUSTAT_SLSV 0x00004000
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#define CPUSTAT_SLSR 0x00002000
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#define CPUSTAT_ZARCH 0x00000800
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#define CPUSTAT_MCDS 0x00000100
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#define CPUSTAT_KSS 0x00000200
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#define CPUSTAT_SM 0x00000080
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#define CPUSTAT_IBS 0x00000040
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#define CPUSTAT_GED2 0x00000010
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#define CPUSTAT_G 0x00000008
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#define CPUSTAT_GED 0x00000004
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#define CPUSTAT_J 0x00000002
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#define CPUSTAT_P 0x00000001
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struct kvm_s390_sie_block {
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atomic_t cpuflags; /* 0x0000 */
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__u32 : 1; /* 0x0004 */
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__u32 prefix : 18;
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__u32 : 1;
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__u32 ibc : 12;
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__u8 reserved08[4]; /* 0x0008 */
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#define PROG_IN_SIE (1<<0)
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__u32 prog0c; /* 0x000c */
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__u8 reserved10[16]; /* 0x0010 */
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#define PROG_BLOCK_SIE (1<<0)
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#define PROG_REQUEST (1<<1)
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atomic_t prog20; /* 0x0020 */
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__u8 reserved24[4]; /* 0x0024 */
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__u64 cputm; /* 0x0028 */
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__u64 ckc; /* 0x0030 */
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__u64 epoch; /* 0x0038 */
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__u32 svcc; /* 0x0040 */
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#define LCTL_CR0 0x8000
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#define LCTL_CR6 0x0200
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#define LCTL_CR9 0x0040
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#define LCTL_CR10 0x0020
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#define LCTL_CR11 0x0010
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#define LCTL_CR14 0x0002
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__u16 lctl; /* 0x0044 */
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__s16 icpua; /* 0x0046 */
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#define ICTL_OPEREXC 0x80000000
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#define ICTL_PINT 0x20000000
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#define ICTL_LPSW 0x00400000
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#define ICTL_STCTL 0x00040000
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#define ICTL_ISKE 0x00004000
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#define ICTL_SSKE 0x00002000
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#define ICTL_RRBE 0x00001000
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#define ICTL_TPROT 0x00000200
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__u32 ictl; /* 0x0048 */
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#define ECA_CEI 0x80000000
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#define ECA_IB 0x40000000
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#define ECA_SIGPI 0x10000000
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#define ECA_MVPGI 0x01000000
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#define ECA_AIV 0x00200000
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#define ECA_VX 0x00020000
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#define ECA_PROTEXCI 0x00002000
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#define ECA_SII 0x00000001
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__u32 eca; /* 0x004c */
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#define ICPT_INST 0x04
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#define ICPT_PROGI 0x08
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#define ICPT_INSTPROGI 0x0C
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#define ICPT_EXTREQ 0x10
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#define ICPT_EXTINT 0x14
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#define ICPT_IOREQ 0x18
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#define ICPT_WAIT 0x1c
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#define ICPT_VALIDITY 0x20
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#define ICPT_STOP 0x28
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#define ICPT_OPEREXC 0x2C
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#define ICPT_PARTEXEC 0x38
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#define ICPT_IOINST 0x40
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#define ICPT_KSS 0x5c
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__u8 icptcode; /* 0x0050 */
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__u8 icptstatus; /* 0x0051 */
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__u16 ihcpu; /* 0x0052 */
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__u8 reserved54[2]; /* 0x0054 */
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__u16 ipa; /* 0x0056 */
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__u32 ipb; /* 0x0058 */
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__u32 scaoh; /* 0x005c */
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#define FPF_BPBC 0x20
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__u8 fpf; /* 0x0060 */
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#define ECB_GS 0x40
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#define ECB_TE 0x10
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#define ECB_SRSI 0x04
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#define ECB_HOSTPROTINT 0x02
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__u8 ecb; /* 0x0061 */
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#define ECB2_CMMA 0x80
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#define ECB2_IEP 0x20
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#define ECB2_PFMFI 0x08
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#define ECB2_ESCA 0x04
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__u8 ecb2; /* 0x0062 */
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#define ECB3_DEA 0x08
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#define ECB3_AES 0x04
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#define ECB3_RI 0x01
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__u8 ecb3; /* 0x0063 */
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__u32 scaol; /* 0x0064 */
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__u8 reserved68; /* 0x0068 */
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__u8 epdx; /* 0x0069 */
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__u8 reserved6a[2]; /* 0x006a */
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__u32 todpr; /* 0x006c */
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#define GISA_FORMAT1 0x00000001
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__u32 gd; /* 0x0070 */
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__u8 reserved74[12]; /* 0x0074 */
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__u64 mso; /* 0x0080 */
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__u64 msl; /* 0x0088 */
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psw_t gpsw; /* 0x0090 */
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__u64 gg14; /* 0x00a0 */
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__u64 gg15; /* 0x00a8 */
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__u8 reservedb0[20]; /* 0x00b0 */
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__u16 extcpuaddr; /* 0x00c4 */
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__u16 eic; /* 0x00c6 */
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__u32 reservedc8; /* 0x00c8 */
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__u16 pgmilc; /* 0x00cc */
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__u16 iprcc; /* 0x00ce */
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__u32 dxc; /* 0x00d0 */
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__u16 mcn; /* 0x00d4 */
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__u8 perc; /* 0x00d6 */
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__u8 peratmid; /* 0x00d7 */
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__u64 peraddr; /* 0x00d8 */
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__u8 eai; /* 0x00e0 */
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__u8 peraid; /* 0x00e1 */
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__u8 oai; /* 0x00e2 */
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__u8 armid; /* 0x00e3 */
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__u8 reservede4[4]; /* 0x00e4 */
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__u64 tecmc; /* 0x00e8 */
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__u8 reservedf0[12]; /* 0x00f0 */
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#define CRYCB_FORMAT1 0x00000001
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#define CRYCB_FORMAT2 0x00000003
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__u32 crycbd; /* 0x00fc */
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__u64 gcr[16]; /* 0x0100 */
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__u64 gbea; /* 0x0180 */
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__u8 reserved188[8]; /* 0x0188 */
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__u64 sdnxo; /* 0x0190 */
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__u8 reserved198[8]; /* 0x0198 */
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__u32 fac; /* 0x01a0 */
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__u8 reserved1a4[20]; /* 0x01a4 */
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__u64 cbrlo; /* 0x01b8 */
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__u8 reserved1c0[8]; /* 0x01c0 */
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#define ECD_HOSTREGMGMT 0x20000000
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#define ECD_MEF 0x08000000
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#define ECD_ETOKENF 0x02000000
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__u32 ecd; /* 0x01c8 */
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__u8 reserved1cc[18]; /* 0x01cc */
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__u64 pp; /* 0x01de */
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__u8 reserved1e6[2]; /* 0x01e6 */
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__u64 itdba; /* 0x01e8 */
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__u64 riccbd; /* 0x01f0 */
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__u64 gvrd; /* 0x01f8 */
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} __attribute__((packed));
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struct kvm_s390_itdb {
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__u8 data[256];
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};
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struct sie_page {
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struct kvm_s390_sie_block sie_block;
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struct mcck_volatile_info mcck_info; /* 0x0200 */
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__u8 reserved218[1000]; /* 0x0218 */
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struct kvm_s390_itdb itdb; /* 0x0600 */
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__u8 reserved700[2304]; /* 0x0700 */
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};
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struct kvm_vcpu_stat {
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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_successful_poll;
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u64 halt_attempted_poll;
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u64 halt_poll_invalid;
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u64 halt_wakeup;
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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_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 diagnose_10;
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u64 diagnose_44;
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u64 diagnose_9c;
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u64 diagnose_258;
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u64 diagnose_308;
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u64 diagnose_500;
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u64 diagnose_other;
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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_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,
|
|
IRQ_PEND_EXT_HOST,
|
|
IRQ_PEND_EXT_SERVICE,
|
|
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_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))
|
|
|
|
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;
|
|
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;
|
|
unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
|
|
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))
|
|
|
|
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_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_vm_stat {
|
|
u64 inject_io;
|
|
u64 inject_float_mchk;
|
|
u64 inject_pfault_done;
|
|
u64 inject_service_signal;
|
|
u64 inject_virtio;
|
|
u64 remote_tlb_flush;
|
|
};
|
|
|
|
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;
|
|
struct rw_semaphore maps_lock;
|
|
struct list_head maps;
|
|
atomic_t nr_maps;
|
|
};
|
|
|
|
#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_LIST_SIZE_U64];
|
|
/* facility list requested by guest (in dma page) */
|
|
__u64 *fac_list;
|
|
u64 cpuid;
|
|
unsigned short ibc;
|
|
};
|
|
|
|
struct kvm_s390_crypto {
|
|
struct kvm_s390_crypto_cb *crycb;
|
|
__u32 crycbd;
|
|
__u8 aes_kw;
|
|
__u8 dea_kw;
|
|
};
|
|
|
|
#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;
|
|
};
|
|
};
|
|
|
|
/*
|
|
* 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 */
|
|
u8 reserved920[0x1000 - 0x920]; /* 0x0920 */
|
|
};
|
|
|
|
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_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 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);
|
|
struct kvm_s390_gisa *gisa;
|
|
};
|
|
|
|
#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_inject_async_page_present(struct kvm_vcpu *vcpu);
|
|
|
|
void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
|
|
struct kvm_async_pf *work);
|
|
|
|
void 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);
|
|
|
|
extern int sie64a(struct kvm_s390_sie_block *, u64 *);
|
|
extern char sie_exit;
|
|
|
|
static inline void kvm_arch_hardware_disable(void) {}
|
|
static inline void kvm_arch_check_processor_compat(void *rtn) {}
|
|
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
|
|
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
|
|
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 *free, struct kvm_memory_slot *dont) {}
|
|
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) {}
|
|
|
|
void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);
|
|
|
|
#endif
|