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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_KVM_S390_H
#define __LINUX_KVM_S390_H
/*
* KVM s390 specific structures and definitions
*
* Copyright IBM Corp. 2008, 2018
*
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Christian Borntraeger <borntraeger@de.ibm.com>
*/
#include <linux/types.h>
#define __KVM_S390
#define __KVM_HAVE_GUEST_DEBUG
/* Device control API: s390-specific devices */
#define KVM_DEV_FLIC_GET_ALL_IRQS 1
#define KVM_DEV_FLIC_ENQUEUE 2
#define KVM_DEV_FLIC_CLEAR_IRQS 3
#define KVM_DEV_FLIC_APF_ENABLE 4
#define KVM_DEV_FLIC_APF_DISABLE_WAIT 5
#define KVM_DEV_FLIC_ADAPTER_REGISTER 6
#define KVM_DEV_FLIC_ADAPTER_MODIFY 7
#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8
#define KVM_DEV_FLIC_AISM 9
#define KVM_DEV_FLIC_AIRQ_INJECT 10
#define KVM_DEV_FLIC_AISM_ALL 11
/*
* We can have up to 4*64k pending subchannels + 8 adapter interrupts,
* as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
* There are also sclp and machine checks. This gives us
* sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
* Lets round up to 8192 pages.
*/
#define KVM_S390_MAX_FLOAT_IRQS 266250
#define KVM_S390_FLIC_MAX_BUFFER 0x2000000
struct kvm_s390_io_adapter {
__u32 id;
__u8 isc;
__u8 maskable;
__u8 swap;
__u8 flags;
};
#define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
struct kvm_s390_ais_req {
__u8 isc;
__u16 mode;
};
struct kvm_s390_ais_all {
__u8 simm;
__u8 nimm;
};
#define KVM_S390_IO_ADAPTER_MASK 1
#define KVM_S390_IO_ADAPTER_MAP 2
#define KVM_S390_IO_ADAPTER_UNMAP 3
struct kvm_s390_io_adapter_req {
__u32 id;
__u8 type;
__u8 mask;
__u16 pad0;
__u64 addr;
};
/* kvm attr_group on vm fd */
#define KVM_S390_VM_MEM_CTRL 0
#define KVM_S390_VM_TOD 1
#define KVM_S390_VM_CRYPTO 2
#define KVM_S390_VM_CPU_MODEL 3
#define KVM_S390_VM_MIGRATION 4
/* kvm attributes for mem_ctrl */
#define KVM_S390_VM_MEM_ENABLE_CMMA 0
#define KVM_S390_VM_MEM_CLR_CMMA 1
#define KVM_S390_VM_MEM_LIMIT_SIZE 2
#define KVM_S390_NO_MEM_LIMIT U64_MAX
/* kvm attributes for KVM_S390_VM_TOD */
#define KVM_S390_VM_TOD_LOW 0
#define KVM_S390_VM_TOD_HIGH 1
#define KVM_S390_VM_TOD_EXT 2
struct kvm_s390_vm_tod_clock {
__u8 epoch_idx;
__u64 tod;
};
/* kvm attributes for KVM_S390_VM_CPU_MODEL */
/* processor related attributes are r/w */
#define KVM_S390_VM_CPU_PROCESSOR 0
struct kvm_s390_vm_cpu_processor {
__u64 cpuid;
__u16 ibc;
__u8 pad[6];
__u64 fac_list[256];
};
/* machine related attributes are r/o */
#define KVM_S390_VM_CPU_MACHINE 1
struct kvm_s390_vm_cpu_machine {
__u64 cpuid;
__u32 ibc;
__u8 pad[4];
__u64 fac_mask[256];
__u64 fac_list[256];
};
#define KVM_S390_VM_CPU_PROCESSOR_FEAT 2
#define KVM_S390_VM_CPU_MACHINE_FEAT 3
#define KVM_S390_VM_CPU_FEAT_NR_BITS 1024
#define KVM_S390_VM_CPU_FEAT_ESOP 0
#define KVM_S390_VM_CPU_FEAT_SIEF2 1
#define KVM_S390_VM_CPU_FEAT_64BSCAO 2
#define KVM_S390_VM_CPU_FEAT_SIIF 3
#define KVM_S390_VM_CPU_FEAT_GPERE 4
#define KVM_S390_VM_CPU_FEAT_GSLS 5
#define KVM_S390_VM_CPU_FEAT_IB 6
#define KVM_S390_VM_CPU_FEAT_CEI 7
#define KVM_S390_VM_CPU_FEAT_IBS 8
#define KVM_S390_VM_CPU_FEAT_SKEY 9
#define KVM_S390_VM_CPU_FEAT_CMMA 10
#define KVM_S390_VM_CPU_FEAT_PFMFI 11
#define KVM_S390_VM_CPU_FEAT_SIGPIF 12
#define KVM_S390_VM_CPU_FEAT_KSS 13
struct kvm_s390_vm_cpu_feat {
__u64 feat[16];
};
#define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC 4
#define KVM_S390_VM_CPU_MACHINE_SUBFUNC 5
/* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
struct kvm_s390_vm_cpu_subfunc {
__u8 plo[32]; /* always */
__u8 ptff[16]; /* with TOD-clock steering */
__u8 kmac[16]; /* with MSA */
__u8 kmc[16]; /* with MSA */
__u8 km[16]; /* with MSA */
__u8 kimd[16]; /* with MSA */
__u8 klmd[16]; /* with MSA */
__u8 pckmo[16]; /* with MSA3 */
__u8 kmctr[16]; /* with MSA4 */
__u8 kmf[16]; /* with MSA4 */
__u8 kmo[16]; /* with MSA4 */
__u8 pcc[16]; /* with MSA4 */
__u8 ppno[16]; /* with MSA5 */
__u8 kma[16]; /* with MSA8 */
__u8 reserved[1808];
};
/* kvm attributes for crypto */
#define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0
#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1
#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2
#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3
#define KVM_S390_VM_CRYPTO_ENABLE_APIE 4
#define KVM_S390_VM_CRYPTO_DISABLE_APIE 5
/* kvm attributes for migration mode */
#define KVM_S390_VM_MIGRATION_STOP 0
#define KVM_S390_VM_MIGRATION_START 1
#define KVM_S390_VM_MIGRATION_STATUS 2
/* for KVM_GET_REGS and KVM_SET_REGS */
struct kvm_regs {
/* general purpose regs for s390 */
__u64 gprs[16];
};
/* for KVM_GET_SREGS and KVM_SET_SREGS */
struct kvm_sregs {
__u32 acrs[16];
__u64 crs[16];
};
/* for KVM_GET_FPU and KVM_SET_FPU */
struct kvm_fpu {
__u32 fpc;
__u64 fprs[16];
};
#define KVM_GUESTDBG_USE_HW_BP 0x00010000
#define KVM_HW_BP 1
#define KVM_HW_WP_WRITE 2
#define KVM_SINGLESTEP 4
struct kvm_debug_exit_arch {
__u64 addr;
__u8 type;
__u8 pad[7]; /* Should be set to 0 */
};
struct kvm_hw_breakpoint {
__u64 addr;
__u64 phys_addr;
__u64 len;
__u8 type;
__u8 pad[7]; /* Should be set to 0 */
};
/* for KVM_SET_GUEST_DEBUG */
struct kvm_guest_debug_arch {
__u32 nr_hw_bp;
__u32 pad; /* Should be set to 0 */
struct kvm_hw_breakpoint *hw_bp;
};
/* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
#define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL
#define KVM_SYNC_PREFIX (1UL << 0)
#define KVM_SYNC_GPRS (1UL << 1)
#define KVM_SYNC_ACRS (1UL << 2)
#define KVM_SYNC_CRS (1UL << 3)
#define KVM_SYNC_ARCH0 (1UL << 4)
#define KVM_SYNC_PFAULT (1UL << 5)
#define KVM_SYNC_VRS (1UL << 6)
#define KVM_SYNC_RICCB (1UL << 7)
#define KVM_SYNC_FPRS (1UL << 8)
#define KVM_SYNC_GSCB (1UL << 9)
#define KVM_SYNC_BPBC (1UL << 10)
#define KVM_SYNC_ETOKEN (1UL << 11)
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
/* definition of registers in kvm_run */
struct kvm_sync_regs {
__u64 prefix; /* prefix register */
__u64 gprs[16]; /* general purpose registers */
__u32 acrs[16]; /* access registers */
__u64 crs[16]; /* control registers */
__u64 todpr; /* tod programmable register [ARCH0] */
__u64 cputm; /* cpu timer [ARCH0] */
__u64 ckc; /* clock comparator [ARCH0] */
__u64 pp; /* program parameter [ARCH0] */
__u64 gbea; /* guest breaking-event address [ARCH0] */
__u64 pft; /* pfault token [PFAULT] */
__u64 pfs; /* pfault select [PFAULT] */
__u64 pfc; /* pfault compare [PFAULT] */
union {
__u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */
__u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */
};
__u8 reserved[512]; /* for future vector expansion */
__u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
__u8 bpbc : 1; /* bp mode */
__u8 reserved2 : 7;
__u8 padding1[51]; /* riccb needs to be 64byte aligned */
__u8 riccb[64]; /* runtime instrumentation controls block */
__u8 padding2[192]; /* sdnx needs to be 256byte aligned */
union {
__u8 sdnx[SDNXL]; /* state description annex */
struct {
__u64 reserved1[2];
__u64 gscb[4];
__u64 etoken;
__u64 etoken_extension;
};
};
};
#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
#endif
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