Initial import

1 files changed, 642 insertions, 0 deletions

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
new file mode 100644
index 000000000..d01fc588b
--- /dev/null
+++ b/arch/s390/include/asm/kvm_host.h
@@ -0,0 +1,642 @@
+/*
+ * definition for kernel virtual machines on s390
+ *
+ * Copyright IBM Corp. 2008, 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Carsten Otte <cotte@de.ibm.com>
+ */
+
+
+#ifndef ASM_KVM_HOST_H
+#define ASM_KVM_HOST_H
+
+#include <linux/types.h>
+#include <linux/hrtimer.h>
+#include <linux/interrupt.h>
+#include <linux/kvm_types.h>
+#include <linux/kvm_host.h>
+#include <linux/kvm.h>
+#include <asm/debug.h>
+#include <asm/cpu.h>
+#include <asm/isc.h>
+
+#define KVM_MAX_VCPUS 64
+#define KVM_USER_MEM_SLOTS 32
+
+/*
+ * These seem to be used for allocating ->chip in the routing table,
+ * which we don't use. 4096 is an out-of-thin-air value. If we need
+ * to look at ->chip later on, we'll need to revisit this.
+ */
+#define KVM_NR_IRQCHIPS 1
+#define KVM_IRQCHIP_NUM_PINS 4096
+
+#define SIGP_CTRL_C		0x80
+#define SIGP_CTRL_SCN_MASK	0x3f
+
+struct sca_entry {
+	__u8	reserved0;
+	__u8	sigp_ctrl;
+	__u16	reserved[3];
+	__u64	sda;
+	__u64	reserved2[2];
+} __attribute__((packed));
+
+union ipte_control {
+	unsigned long val;
+	struct {
+		unsigned long k  : 1;
+		unsigned long kh : 31;
+		unsigned long kg : 32;
+	};
+};
+
+struct sca_block {
+	union ipte_control ipte_control;
+	__u64	reserved[5];
+	__u64	mcn;
+	__u64	reserved2;
+	struct sca_entry cpu[64];
+} __attribute__((packed));
+
+#define CPUSTAT_STOPPED    0x80000000
+#define CPUSTAT_WAIT       0x10000000
+#define CPUSTAT_ECALL_PEND 0x08000000
+#define CPUSTAT_STOP_INT   0x04000000
+#define CPUSTAT_IO_INT     0x02000000
+#define CPUSTAT_EXT_INT    0x01000000
+#define CPUSTAT_RUNNING    0x00800000
+#define CPUSTAT_RETAINED   0x00400000
+#define CPUSTAT_TIMING_SUB 0x00020000
+#define CPUSTAT_SIE_SUB    0x00010000
+#define CPUSTAT_RRF        0x00008000
+#define CPUSTAT_SLSV       0x00004000
+#define CPUSTAT_SLSR       0x00002000
+#define CPUSTAT_ZARCH      0x00000800
+#define CPUSTAT_MCDS       0x00000100
+#define CPUSTAT_SM         0x00000080
+#define CPUSTAT_IBS        0x00000040
+#define CPUSTAT_G          0x00000008
+#define CPUSTAT_GED        0x00000004
+#define CPUSTAT_J          0x00000002
+#define CPUSTAT_P          0x00000001
+
+struct kvm_s390_sie_block {
+	atomic_t cpuflags;		/* 0x0000 */
+	__u32 : 1;			/* 0x0004 */
+	__u32 prefix : 18;
+	__u32 : 1;
+	__u32 ibc : 12;
+	__u8	reserved08[4];		/* 0x0008 */
+#define PROG_IN_SIE (1<<0)
+	__u32	prog0c;			/* 0x000c */
+	__u8	reserved10[16];		/* 0x0010 */
+#define PROG_BLOCK_SIE 0x00000001
+	atomic_t prog20;		/* 0x0020 */
+	__u8	reserved24[4];		/* 0x0024 */
+	__u64	cputm;			/* 0x0028 */
+	__u64	ckc;			/* 0x0030 */
+	__u64	epoch;			/* 0x0038 */
+	__u8	reserved40[4];		/* 0x0040 */
+#define LCTL_CR0	0x8000
+#define LCTL_CR6	0x0200
+#define LCTL_CR9	0x0040
+#define LCTL_CR10	0x0020
+#define LCTL_CR11	0x0010
+#define LCTL_CR14	0x0002
+	__u16   lctl;			/* 0x0044 */
+	__s16	icpua;			/* 0x0046 */
+#define ICTL_PINT	0x20000000
+#define ICTL_LPSW	0x00400000
+#define ICTL_STCTL	0x00040000
+#define ICTL_ISKE	0x00004000
+#define ICTL_SSKE	0x00002000
+#define ICTL_RRBE	0x00001000
+#define ICTL_TPROT	0x00000200
+	__u32	ictl;			/* 0x0048 */
+	__u32	eca;			/* 0x004c */
+#define ICPT_INST	0x04
+#define ICPT_PROGI	0x08
+#define ICPT_INSTPROGI	0x0C
+#define ICPT_OPEREXC	0x2C
+#define ICPT_PARTEXEC	0x38
+#define ICPT_IOINST	0x40
+	__u8	icptcode;		/* 0x0050 */
+	__u8	icptstatus;		/* 0x0051 */
+	__u16	ihcpu;			/* 0x0052 */
+	__u8	reserved54[2];		/* 0x0054 */
+	__u16	ipa;			/* 0x0056 */
+	__u32	ipb;			/* 0x0058 */
+	__u32	scaoh;			/* 0x005c */
+	__u8	reserved60;		/* 0x0060 */
+	__u8	ecb;			/* 0x0061 */
+	__u8    ecb2;                   /* 0x0062 */
+#define ECB3_AES 0x04
+#define ECB3_DEA 0x08
+	__u8    ecb3;			/* 0x0063 */
+	__u32	scaol;			/* 0x0064 */
+	__u8	reserved68[4];		/* 0x0068 */
+	__u32	todpr;			/* 0x006c */
+	__u8	reserved70[32];		/* 0x0070 */
+	psw_t	gpsw;			/* 0x0090 */
+	__u64	gg14;			/* 0x00a0 */
+	__u64	gg15;			/* 0x00a8 */
+	__u8	reservedb0[20];		/* 0x00b0 */
+	__u16	extcpuaddr;		/* 0x00c4 */
+	__u16	eic;			/* 0x00c6 */
+	__u32	reservedc8;		/* 0x00c8 */
+	__u16	pgmilc;			/* 0x00cc */
+	__u16	iprcc;			/* 0x00ce */
+	__u32	dxc;			/* 0x00d0 */
+	__u16	mcn;			/* 0x00d4 */
+	__u8	perc;			/* 0x00d6 */
+	__u8	peratmid;		/* 0x00d7 */
+	__u64	peraddr;		/* 0x00d8 */
+	__u8	eai;			/* 0x00e0 */
+	__u8	peraid;			/* 0x00e1 */
+	__u8	oai;			/* 0x00e2 */
+	__u8	armid;			/* 0x00e3 */
+	__u8	reservede4[4];		/* 0x00e4 */
+	__u64	tecmc;			/* 0x00e8 */
+	__u8	reservedf0[12];		/* 0x00f0 */
+#define CRYCB_FORMAT1 0x00000001
+#define CRYCB_FORMAT2 0x00000003
+	__u32	crycbd;			/* 0x00fc */
+	__u64	gcr[16];		/* 0x0100 */
+	__u64	gbea;			/* 0x0180 */
+	__u8	reserved188[24];	/* 0x0188 */
+	__u32	fac;			/* 0x01a0 */
+	__u8	reserved1a4[20];	/* 0x01a4 */
+	__u64	cbrlo;			/* 0x01b8 */
+	__u8	reserved1c0[8];		/* 0x01c0 */
+	__u32	ecd;			/* 0x01c8 */
+	__u8	reserved1cc[18];	/* 0x01cc */
+	__u64	pp;			/* 0x01de */
+	__u8	reserved1e6[2];		/* 0x01e6 */
+	__u64	itdba;			/* 0x01e8 */
+	__u8	reserved1f0[16];	/* 0x01f0 */
+} __attribute__((packed));
+
+struct kvm_s390_itdb {
+	__u8	data[256];
+} __packed;
+
+struct kvm_s390_vregs {
+	__vector128 vrs[32];
+	__u8	reserved200[512];	/* for future vector expansion */
+} __packed;
+
+struct sie_page {
+	struct kvm_s390_sie_block sie_block;
+	__u8 reserved200[1024];		/* 0x0200 */
+	struct kvm_s390_itdb itdb;	/* 0x0600 */
+	__u8 reserved700[1280];		/* 0x0700 */
+	struct kvm_s390_vregs vregs;	/* 0x0c00 */
+} __packed;
+
+struct kvm_vcpu_stat {
+	u32 exit_userspace;
+	u32 exit_null;
+	u32 exit_external_request;
+	u32 exit_external_interrupt;
+	u32 exit_stop_request;
+	u32 exit_validity;
+	u32 exit_instruction;
+	u32 halt_successful_poll;
+	u32 halt_wakeup;
+	u32 instruction_lctl;
+	u32 instruction_lctlg;
+	u32 instruction_stctl;
+	u32 instruction_stctg;
+	u32 exit_program_interruption;
+	u32 exit_instr_and_program;
+	u32 deliver_external_call;
+	u32 deliver_emergency_signal;
+	u32 deliver_service_signal;
+	u32 deliver_virtio_interrupt;
+	u32 deliver_stop_signal;
+	u32 deliver_prefix_signal;
+	u32 deliver_restart_signal;
+	u32 deliver_program_int;
+	u32 deliver_io_int;
+	u32 exit_wait_state;
+	u32 instruction_pfmf;
+	u32 instruction_stidp;
+	u32 instruction_spx;
+	u32 instruction_stpx;
+	u32 instruction_stap;
+	u32 instruction_storage_key;
+	u32 instruction_ipte_interlock;
+	u32 instruction_stsch;
+	u32 instruction_chsc;
+	u32 instruction_stsi;
+	u32 instruction_stfl;
+	u32 instruction_tprot;
+	u32 instruction_essa;
+	u32 instruction_sigp_sense;
+	u32 instruction_sigp_sense_running;
+	u32 instruction_sigp_external_call;
+	u32 instruction_sigp_emergency;
+	u32 instruction_sigp_cond_emergency;
+	u32 instruction_sigp_start;
+	u32 instruction_sigp_stop;
+	u32 instruction_sigp_stop_store_status;
+	u32 instruction_sigp_store_status;
+	u32 instruction_sigp_store_adtl_status;
+	u32 instruction_sigp_arch;
+	u32 instruction_sigp_prefix;
+	u32 instruction_sigp_restart;
+	u32 instruction_sigp_init_cpu_reset;
+	u32 instruction_sigp_cpu_reset;
+	u32 instruction_sigp_unknown;
+	u32 diagnose_10;
+	u32 diagnose_44;
+	u32 diagnose_9c;
+};
+
+#define PGM_OPERATION			0x01
+#define PGM_PRIVILEGED_OP		0x02
+#define PGM_EXECUTE			0x03
+#define PGM_PROTECTION			0x04
+#define PGM_ADDRESSING			0x05
+#define PGM_SPECIFICATION		0x06
+#define PGM_DATA			0x07
+#define PGM_FIXED_POINT_OVERFLOW	0x08
+#define PGM_FIXED_POINT_DIVIDE		0x09
+#define PGM_DECIMAL_OVERFLOW		0x0a
+#define PGM_DECIMAL_DIVIDE		0x0b
+#define PGM_HFP_EXPONENT_OVERFLOW	0x0c
+#define PGM_HFP_EXPONENT_UNDERFLOW	0x0d
+#define PGM_HFP_SIGNIFICANCE		0x0e
+#define PGM_HFP_DIVIDE			0x0f
+#define PGM_SEGMENT_TRANSLATION		0x10
+#define PGM_PAGE_TRANSLATION		0x11
+#define PGM_TRANSLATION_SPEC		0x12
+#define PGM_SPECIAL_OPERATION		0x13
+#define PGM_OPERAND			0x15
+#define PGM_TRACE_TABEL			0x16
+#define PGM_VECTOR_PROCESSING		0x1b
+#define PGM_SPACE_SWITCH		0x1c
+#define PGM_HFP_SQUARE_ROOT		0x1d
+#define PGM_PC_TRANSLATION_SPEC		0x1f
+#define PGM_AFX_TRANSLATION		0x20
+#define PGM_ASX_TRANSLATION		0x21
+#define PGM_LX_TRANSLATION		0x22
+#define PGM_EX_TRANSLATION		0x23
+#define PGM_PRIMARY_AUTHORITY		0x24
+#define PGM_SECONDARY_AUTHORITY		0x25
+#define PGM_LFX_TRANSLATION		0x26
+#define PGM_LSX_TRANSLATION		0x27
+#define PGM_ALET_SPECIFICATION		0x28
+#define PGM_ALEN_TRANSLATION		0x29
+#define PGM_ALE_SEQUENCE		0x2a
+#define PGM_ASTE_VALIDITY		0x2b
+#define PGM_ASTE_SEQUENCE		0x2c
+#define PGM_EXTENDED_AUTHORITY		0x2d
+#define PGM_LSTE_SEQUENCE		0x2e
+#define PGM_ASTE_INSTANCE		0x2f
+#define PGM_STACK_FULL			0x30
+#define PGM_STACK_EMPTY			0x31
+#define PGM_STACK_SPECIFICATION		0x32
+#define PGM_STACK_TYPE			0x33
+#define PGM_STACK_OPERATION		0x34
+#define PGM_ASCE_TYPE			0x38
+#define PGM_REGION_FIRST_TRANS		0x39
+#define PGM_REGION_SECOND_TRANS		0x3a
+#define PGM_REGION_THIRD_TRANS		0x3b
+#define PGM_MONITOR			0x40
+#define PGM_PER				0x80
+#define PGM_CRYPTO_OPERATION		0x119
+
+/* irq types in order of priority */
+enum irq_types {
+	IRQ_PEND_MCHK_EX = 0,
+	IRQ_PEND_SVC,
+	IRQ_PEND_PROG,
+	IRQ_PEND_MCHK_REP,
+	IRQ_PEND_EXT_IRQ_KEY,
+	IRQ_PEND_EXT_MALFUNC,
+	IRQ_PEND_EXT_EMERGENCY,
+	IRQ_PEND_EXT_EXTERNAL,
+	IRQ_PEND_EXT_CLOCK_COMP,
+	IRQ_PEND_EXT_CPU_TIMER,
+	IRQ_PEND_EXT_TIMING,
+	IRQ_PEND_EXT_SERVICE,
+	IRQ_PEND_EXT_HOST,
+	IRQ_PEND_PFAULT_INIT,
+	IRQ_PEND_PFAULT_DONE,
+	IRQ_PEND_VIRTIO,
+	IRQ_PEND_IO_ISC_0,
+	IRQ_PEND_IO_ISC_1,
+	IRQ_PEND_IO_ISC_2,
+	IRQ_PEND_IO_ISC_3,
+	IRQ_PEND_IO_ISC_4,
+	IRQ_PEND_IO_ISC_5,
+	IRQ_PEND_IO_ISC_6,
+	IRQ_PEND_IO_ISC_7,
+	IRQ_PEND_SIGP_STOP,
+	IRQ_PEND_RESTART,
+	IRQ_PEND_SET_PREFIX,
+	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;
+	struct kvm_s390_float_interrupt *float_int;
+	wait_queue_head_t *wq;
+	atomic_t *cpuflags;
+	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
+
+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 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;
+	s390_fp_regs      host_fpregs;
+	unsigned int      host_acrs[NUM_ACRS];
+	s390_fp_regs      guest_fpregs;
+	struct kvm_s390_vregs	*host_vregs;
+	struct kvm_s390_local_interrupt local_int;
+	struct hrtimer    ckc_timer;
+	struct kvm_s390_pgm_info pgm;
+	union  {
+		struct cpuid	cpu_id;
+		u64		stidp_data;
+	};
+	struct gmap *gmap;
+	struct kvm_guestdbg_info_arch guestdbg;
+	unsigned long pfault_token;
+	unsigned long pfault_select;
+	unsigned long pfault_compare;
+};
+
+struct kvm_vm_stat {
+	u32 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;
+	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_fac {
+	/* facility list requested by guest */
+	__u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
+	/* facility mask supported by kvm & hosting machine */
+	__u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
+};
+
+struct kvm_s390_cpu_model {
+	struct kvm_s390_fac *fac;
+	struct cpuid cpu_id;
+	unsigned short ibc;
+};
+
+struct kvm_s390_crypto {
+	struct kvm_s390_crypto_cb *crycb;
+	__u32 crycbd;
+	__u8 aes_kw;
+	__u8 dea_kw;
+};
+
+struct kvm_s390_crypto_cb {
+	__u8    reserved00[72];                 /* 0x0000 */
+	__u8    dea_wrapping_key_mask[24];      /* 0x0048 */
+	__u8    aes_wrapping_key_mask[32];      /* 0x0060 */
+	__u8    reserved80[128];                /* 0x0080 */
+};
+
+struct kvm_arch{
+	struct sca_block *sca;
+	debug_info_t *dbf;
+	struct kvm_s390_float_interrupt float_int;
+	struct kvm_device *flic;
+	struct gmap *gmap;
+	int css_support;
+	int use_irqchip;
+	int use_cmma;
+	int user_cpu_state_ctrl;
+	int user_sigp;
+	int user_stsi;
+	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 kvm_s390_cpu_model model;
+	struct kvm_s390_crypto crypto;
+	u64 epoch;
+};
+
+#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_exit(void) {}
+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) {}
+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) {}
+
+#endif