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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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bf640876e2
Current common code uses PAGE_OFFSET to indicate a bad host virtual address. As this check won't work on architectures that don't map kernel and user memory into the same address space (e.g. s390), such architectures can now provide their own KVM_HVA_ERR_BAD defines. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
288 lines
7.0 KiB
C
288 lines
7.0 KiB
C
/*
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* definition for kernel virtual machines on s390
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*
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* Copyright IBM Corp. 2008, 2009
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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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/hrtimer.h>
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#include <linux/interrupt.h>
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#include <linux/kvm_host.h>
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#include <asm/debug.h>
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#include <asm/cpu.h>
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#define KVM_MAX_VCPUS 64
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#define KVM_USER_MEM_SLOTS 32
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struct sca_entry {
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atomic_t scn;
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__u32 reserved;
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__u64 sda;
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__u64 reserved2[2];
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} __attribute__((packed));
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struct sca_block {
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__u64 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 sca_entry cpu[64];
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} __attribute__((packed));
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#define KVM_NR_PAGE_SIZES 2
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#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
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#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
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#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
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#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
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#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
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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_SM 0x00000080
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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 prefix; /* 0x0004 */
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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 0x00000001
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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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__u8 reserved40[4]; /* 0x0040 */
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#define LCTL_CR0 0x8000
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#define LCTL_CR6 0x0200
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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_LPSW 0x00400000
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__u32 ictl; /* 0x0048 */
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__u32 eca; /* 0x004c */
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__u8 icptcode; /* 0x0050 */
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__u8 reserved51; /* 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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__u8 reserved60; /* 0x0060 */
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__u8 ecb; /* 0x0061 */
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__u8 ecb2; /* 0x0062 */
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__u8 reserved63[1]; /* 0x0063 */
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__u32 scaol; /* 0x0064 */
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__u8 reserved68[4]; /* 0x0068 */
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__u32 todpr; /* 0x006c */
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__u8 reserved70[32]; /* 0x0070 */
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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[30]; /* 0x00b0 */
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__u16 iprcc; /* 0x00ce */
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__u8 reservedd0[48]; /* 0x00d0 */
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__u64 gcr[16]; /* 0x0100 */
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__u64 gbea; /* 0x0180 */
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__u8 reserved188[24]; /* 0x0188 */
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__u32 fac; /* 0x01a0 */
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__u8 reserved1a4[92]; /* 0x01a4 */
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} __attribute__((packed));
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struct kvm_vcpu_stat {
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u32 exit_userspace;
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u32 exit_null;
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u32 exit_external_request;
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u32 exit_external_interrupt;
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u32 exit_stop_request;
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u32 exit_validity;
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u32 exit_instruction;
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u32 instruction_lctl;
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u32 instruction_lctlg;
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u32 exit_program_interruption;
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u32 exit_instr_and_program;
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u32 deliver_external_call;
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u32 deliver_emergency_signal;
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u32 deliver_service_signal;
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u32 deliver_virtio_interrupt;
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u32 deliver_stop_signal;
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u32 deliver_prefix_signal;
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u32 deliver_restart_signal;
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u32 deliver_program_int;
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u32 deliver_io_int;
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u32 exit_wait_state;
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u32 instruction_pfmf;
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u32 instruction_stidp;
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u32 instruction_spx;
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u32 instruction_stpx;
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u32 instruction_stap;
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u32 instruction_storage_key;
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u32 instruction_stsch;
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u32 instruction_chsc;
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u32 instruction_stsi;
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u32 instruction_stfl;
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u32 instruction_tprot;
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u32 instruction_sigp_sense;
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u32 instruction_sigp_sense_running;
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u32 instruction_sigp_external_call;
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u32 instruction_sigp_emergency;
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u32 instruction_sigp_stop;
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u32 instruction_sigp_arch;
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u32 instruction_sigp_prefix;
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u32 instruction_sigp_restart;
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u32 diagnose_10;
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u32 diagnose_44;
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u32 diagnose_9c;
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};
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struct kvm_s390_io_info {
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__u16 subchannel_id; /* 0x0b8 */
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__u16 subchannel_nr; /* 0x0ba */
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__u32 io_int_parm; /* 0x0bc */
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__u32 io_int_word; /* 0x0c0 */
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};
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struct kvm_s390_ext_info {
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__u32 ext_params;
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__u64 ext_params2;
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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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struct kvm_s390_pgm_info {
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__u16 code;
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};
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struct kvm_s390_prefix_info {
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__u32 address;
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};
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struct kvm_s390_extcall_info {
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__u16 code;
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};
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struct kvm_s390_emerg_info {
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__u16 code;
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};
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struct kvm_s390_mchk_info {
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__u64 cr14;
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__u64 mcic;
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};
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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_mchk_info mchk;
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};
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};
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/* for local_interrupt.action_flags */
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#define ACTION_STORE_ON_STOP (1<<0)
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#define ACTION_STOP_ON_STOP (1<<1)
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#define ACTION_RELOADVCPU_ON_STOP (1<<2)
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struct kvm_s390_local_interrupt {
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spinlock_t lock;
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struct list_head list;
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atomic_t active;
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struct kvm_s390_float_interrupt *float_int;
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int timer_due; /* event indicator for waitqueue below */
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wait_queue_head_t *wq;
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atomic_t *cpuflags;
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unsigned int action_bits;
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};
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struct kvm_s390_float_interrupt {
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spinlock_t lock;
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struct list_head list;
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atomic_t active;
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int next_rr_cpu;
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unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
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/ sizeof(long)];
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struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
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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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s390_fp_regs host_fpregs;
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unsigned int host_acrs[NUM_ACRS];
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s390_fp_regs guest_fpregs;
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struct kvm_s390_local_interrupt local_int;
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struct hrtimer ckc_timer;
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struct tasklet_struct tasklet;
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union {
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struct cpuid cpu_id;
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u64 stidp_data;
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};
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struct gmap *gmap;
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};
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struct kvm_vm_stat {
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u32 remote_tlb_flush;
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};
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struct kvm_arch_memory_slot {
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};
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struct kvm_arch{
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struct sca_block *sca;
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debug_info_t *dbf;
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struct kvm_s390_float_interrupt float_int;
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struct gmap *gmap;
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int css_support;
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};
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#define KVM_HVA_ERR_BAD (-1UL)
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#define KVM_HVA_ERR_RO_BAD (-2UL)
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static inline bool kvm_is_error_hva(unsigned long addr)
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{
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return IS_ERR_VALUE(addr);
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}
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extern int sie64a(struct kvm_s390_sie_block *, u64 *);
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extern char sie_exit;
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#endif
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