1 files changed, 235 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 000000000000..3c55e4107dcc
--- /dev/null
+++ b/arch/s390/include/asm/kvm_host.h
@@ -0,0 +1,235 @@
+/*
+ * asm-s390/kvm_host.h - definition for kernel virtual machines on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * 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/kvm_host.h>
+#include <asm/debug.h>
+
+#define KVM_MAX_VCPUS 64
+#define KVM_MEMORY_SLOTS 32
+/* memory slots that does not exposed to userspace */
+#define KVM_PRIVATE_MEM_SLOTS 4
+
+struct kvm_guest_debug {
+};
+
+struct sca_entry {
+        atomic_t scn;
+        __u64   reserved;
+        __u64   sda;
+        __u64   reserved2[2];
+} __attribute__((packed));
+
+
+struct sca_block {
+        __u64   ipte_control;
+        __u64   reserved[5];
+        __u64   mcn;
+        __u64   reserved2;
+        struct sca_entry cpu[64];
+} __attribute__((packed));
+
+#define KVM_PAGES_PER_HPAGE 256
+
+#define CPUSTAT_HOST       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_G          0x00000008
+#define CPUSTAT_J          0x00000002
+#define CPUSTAT_P          0x00000001
+
+struct kvm_s390_sie_block {
+        atomic_t cpuflags;              /* 0x0000 */
+        __u32   prefix;                 /* 0x0004 */
+        __u8    reserved8[32];          /* 0x0008 */
+        __u64   cputm;                  /* 0x0028 */
+        __u64   ckc;                    /* 0x0030 */
+        __u64   epoch;                  /* 0x0038 */
+        __u8    reserved40[4];          /* 0x0040 */
+#define LCTL_CR0        0x8000
+        __u16   lctl;                   /* 0x0044 */
+        __s16   icpua;                  /* 0x0046 */
+        __u32   ictl;                   /* 0x0048 */
+        __u32   eca;                    /* 0x004c */
+        __u8    icptcode;               /* 0x0050 */
+        __u8    reserved51;             /* 0x0051 */
+        __u16   ihcpu;                  /* 0x0052 */
+        __u8    reserved54[2];          /* 0x0054 */
+        __u16   ipa;                    /* 0x0056 */
+        __u32   ipb;                    /* 0x0058 */
+        __u32   scaoh;                  /* 0x005c */
+        __u8    reserved60;             /* 0x0060 */
+        __u8    ecb;                    /* 0x0061 */
+        __u8    reserved62[2];          /* 0x0062 */
+        __u32   scaol;                  /* 0x0064 */
+        __u8    reserved68[4];          /* 0x0068 */
+        __u32   todpr;                  /* 0x006c */
+        __u8    reserved70[16];         /* 0x0070 */
+        __u64   gmsor;                  /* 0x0080 */
+        __u64   gmslm;                  /* 0x0088 */
+        psw_t   gpsw;                   /* 0x0090 */
+        __u64   gg14;                   /* 0x00a0 */
+        __u64   gg15;                   /* 0x00a8 */
+        __u8    reservedb0[30];         /* 0x00b0 */
+        __u16   iprcc;                  /* 0x00ce */
+        __u8    reservedd0[48];         /* 0x00d0 */
+        __u64   gcr[16];                /* 0x0100 */
+        __u64   gbea;                   /* 0x0180 */
+        __u8    reserved188[120];       /* 0x0188 */
+} __attribute__((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 instruction_lctl;
+        u32 instruction_lctlg;
+        u32 exit_program_interruption;
+        u32 exit_instr_and_program;
+        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 exit_wait_state;
+        u32 instruction_stidp;
+        u32 instruction_spx;
+        u32 instruction_stpx;
+        u32 instruction_stap;
+        u32 instruction_storage_key;
+        u32 instruction_stsch;
+        u32 instruction_chsc;
+        u32 instruction_stsi;
+        u32 instruction_stfl;
+        u32 instruction_sigp_sense;
+        u32 instruction_sigp_emergency;
+        u32 instruction_sigp_stop;
+        u32 instruction_sigp_arch;
+        u32 instruction_sigp_prefix;
+        u32 instruction_sigp_restart;
+        u32 diagnose_44;
+};
+
+struct kvm_s390_io_info {
+        __u16        subchannel_id;            /* 0x0b8 */
+        __u16        subchannel_nr;            /* 0x0ba */
+        __u32        io_int_parm;              /* 0x0bc */
+        __u32        io_int_word;              /* 0x0c0 */
+};
+
+struct kvm_s390_ext_info {
+        __u32 ext_params;
+        __u64 ext_params2;
+};
+
+#define PGM_OPERATION            0x01
+#define PGM_PRIVILEGED_OPERATION 0x02
+#define PGM_EXECUTE              0x03
+#define PGM_PROTECTION           0x04
+#define PGM_ADDRESSING           0x05
+#define PGM_SPECIFICATION        0x06
+#define PGM_DATA                 0x07
+
+struct kvm_s390_pgm_info {
+        __u16 code;
+};
+
+struct kvm_s390_prefix_info {
+        __u32 address;
+};
+
+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_prefix_info prefix;
+        };
+};
+
+/* for local_interrupt.action_flags */
+#define ACTION_STORE_ON_STOP 1
+#define ACTION_STOP_ON_STOP  2
+
+struct kvm_s390_local_interrupt {
+        spinlock_t lock;
+        struct list_head list;
+        atomic_t active;
+        struct kvm_s390_float_interrupt *float_int;
+        int timer_due; /* event indicator for waitqueue below */
+        wait_queue_head_t wq;
+        atomic_t *cpuflags;
+        unsigned int action_bits;
+};
+
+struct kvm_s390_float_interrupt {
+        spinlock_t lock;
+        struct list_head list;
+        atomic_t active;
+        int next_rr_cpu;
+        unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
+        struct kvm_s390_local_interrupt *local_int[64];
+};
+
+
+struct kvm_vcpu_arch {
+        struct kvm_s390_sie_block *sie_block;
+        unsigned long     guest_gprs[16];
+        s390_fp_regs      host_fpregs;
+        unsigned int      host_acrs[NUM_ACRS];
+        s390_fp_regs      guest_fpregs;
+        unsigned int      guest_acrs[NUM_ACRS];
+        struct kvm_s390_local_interrupt local_int;
+        struct timer_list ckc_timer;
+        union  {
+                cpuid_t   cpu_id;
+                u64       stidp_data;
+        };
+};
+
+struct kvm_vm_stat {
+        u32 remote_tlb_flush;
+};
+
+struct kvm_arch{
+        unsigned long guest_origin;
+        unsigned long guest_memsize;
+        struct sca_block *sca;
+        debug_info_t *dbf;
+        struct kvm_s390_float_interrupt float_int;
+};
+
+extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
+#endif