arch/powerpc/include/asm/kvm_book3s.h

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License, version 2, as
   4  * published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  * GNU General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public License
  12  * along with this program; if not, write to the Free Software
  13  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14  *
  15  * Copyright SUSE Linux Products GmbH 2009
  16  *
  17  * Authors: Alexander Graf <agraf@suse.de>
  18  */
  19
  20 #ifndef __ASM_KVM_BOOK3S_H__
  21 #define __ASM_KVM_BOOK3S_H__
  22
  23 #include <linux/types.h>
  24 #include <linux/kvm_host.h>
  25 #include <asm/kvm_book3s_64_asm.h>
  26
  27 struct kvmppc_slb {
  28         u64 esid;
  29         u64 vsid;
  30         u64 orige;
  31         u64 origv;
  32         bool valid;
  33         bool Ks;
  34         bool Kp;
  35         bool nx;
  36         bool large;     /* PTEs are 16MB */
  37         bool tb;        /* 1TB segment */
  38         bool class;
  39 };
  40
  41 struct kvmppc_sr {
  42         u32 raw;
  43         u32 vsid;
  44         bool Ks;
  45         bool Kp;
  46         bool nx;
  47 };
  48
  49 struct kvmppc_bat {
  50         u64 raw;
  51         u32 bepi;
  52         u32 bepi_mask;
  53         bool vs;
  54         bool vp;
  55         u32 brpn;
  56         u8 wimg;
  57         u8 pp;
  58 };
  59
  60 struct kvmppc_sid_map {
  61         u64 guest_vsid;
  62         u64 guest_esid;
  63         u64 host_vsid;
  64         bool valid;
  65 };
  66
  67 #define SID_MAP_BITS    9
  68 #define SID_MAP_NUM     (1 << SID_MAP_BITS)
  69 #define SID_MAP_MASK    (SID_MAP_NUM - 1)
  70
  71 struct kvmppc_vcpu_book3s {
  72         struct kvm_vcpu vcpu;
  73         struct kvmppc_book3s_shadow_vcpu shadow_vcpu;
  74         struct kvmppc_sid_map sid_map[SID_MAP_NUM];
  75         struct kvmppc_slb slb[64];
  76         struct {
  77                 u64 esid;
  78                 u64 vsid;
  79         } slb_shadow[64];
  80         u8 slb_shadow_max;
  81         struct kvmppc_sr sr[16];
  82         struct kvmppc_bat ibat[8];
  83         struct kvmppc_bat dbat[8];
  84         u64 hid[6];
  85         int slb_nr;
  86         u64 sdr1;
  87         u64 dsisr;
  88         u64 hior;
  89         u64 msr_mask;
  90         u64 vsid_first;
  91         u64 vsid_next;
  92         u64 vsid_max;
  93         int context_id;
  94         ulong prog_flags; /* flags to inject when giving a 700 trap */
  95 };
  96
  97 #define CONTEXT_HOST            0
  98 #define CONTEXT_GUEST           1
  99 #define CONTEXT_GUEST_END       2
 100
 101 #define VSID_REAL       0xfffffffffff00000
 102 #define VSID_REAL_DR    0xffffffffffe00000
 103 #define VSID_REAL_IR    0xffffffffffd00000
 104 #define VSID_BAT        0xffffffffffc00000
 105 #define VSID_PR         0x8000000000000000
 106
 107 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, u64 ea, u64 ea_mask);
 108 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
 109 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, u64 pa_start, u64 pa_end);
 110 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
 111 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
 112 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
 113 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
 114 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
 115 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
 116 extern struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, bool data);
 117 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr, bool data);
 118 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr);
 119 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
 120 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
 121                            bool upper, u32 val);
 122
 123 extern u32 kvmppc_trampoline_lowmem;
 124 extern u32 kvmppc_trampoline_enter;
 125 extern void kvmppc_rmcall(ulong srr0, ulong srr1);
 126 extern void kvmppc_load_up_fpu(void);
 127 extern void kvmppc_load_up_altivec(void);
 128 extern void kvmppc_load_up_vsx(void);
 129
 130 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
 131 {
 132         return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
 133 }
 134
 135 static inline ulong dsisr(void)
 136 {
 137         ulong r;
 138         asm ( "mfdsisr %0 " : "=r" (r) );
 139         return r;
 140 }
 141
 142 extern void kvm_return_point(void);
 143
 144 #define INS_DCBZ                        0x7c0007ec
 145
 146 #endif /* __ASM_KVM_BOOK3S_H__ */