arch/powerpc/include/asm/kvm_book3s_asm.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_ASM_H__
  21 #define __ASM_KVM_BOOK3S_ASM_H__
  22
  23 /* XICS ICP register offsets */
  24 #define XICS_XIRR               4
  25 #define XICS_MFRR               0xc
  26 #define XICS_IPI                2       /* interrupt source # for IPIs */
  27
  28 #ifdef __ASSEMBLY__
  29
  30 #ifdef CONFIG_KVM_BOOK3S_HANDLER
  31
  32 #include <asm/kvm_asm.h>
  33
  34 .macro DO_KVM intno
  35         .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
  36             (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
  37             (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
  38             (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
  39             (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
  40             (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
  41             (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
  42             (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
  43             (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
  44             (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
  45             (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
  46             (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
  47             (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
  48             (\intno == BOOK3S_INTERRUPT_TRACE) || \
  49             (\intno == BOOK3S_INTERRUPT_PERFMON) || \
  50             (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
  51             (\intno == BOOK3S_INTERRUPT_VSX)
  52
  53         b       kvmppc_trampoline_\intno
  54 kvmppc_resume_\intno:
  55
  56         .endif
  57 .endm
  58
  59 #else
  60
  61 .macro DO_KVM intno
  62 .endm
  63
  64 #endif /* CONFIG_KVM_BOOK3S_HANDLER */
  65
  66 #else  /*__ASSEMBLY__ */
  67
  68 /*
  69  * This struct goes in the PACA on 64-bit processors.  It is used
  70  * to store host state that needs to be saved when we enter a guest
  71  * and restored when we exit, but isn't specific to any particular
  72  * guest or vcpu.  It also has some scratch fields used by the guest
  73  * exit code.
  74  */
  75 struct kvmppc_host_state {
  76         ulong host_r1;
  77         ulong host_r2;
  78         ulong host_msr;
  79         ulong vmhandler;
  80         ulong scratch0;
  81         ulong scratch1;
  82         ulong scratch2;
  83         u8 in_guest;
  84         u8 restore_hid5;
  85         u8 napping;
  86
  87 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  88         u8 hwthread_req;
  89         u8 hwthread_state;
  90         u8 host_ipi;
  91         u8 ptid;
  92         struct kvm_vcpu *kvm_vcpu;
  93         struct kvmppc_vcore *kvm_vcore;
  94         unsigned long xics_phys;
  95         u32 saved_xirr;
  96         u64 dabr;
  97         u64 host_mmcr[3];
  98         u32 host_pmc[8];
  99         u64 host_purr;
 100         u64 host_spurr;
 101         u64 host_dscr;
 102         u64 dec_expires;
 103 #endif
 104 #ifdef CONFIG_PPC_BOOK3S_64
 105         u64 cfar;
 106         u64 ppr;
 107 #endif
 108 };
 109
 110 struct kvmppc_book3s_shadow_vcpu {
 111         bool in_use;
 112         ulong gpr[14];
 113         u32 cr;
 114         u32 xer;
 115         ulong ctr;
 116         ulong lr;
 117         ulong pc;
 118
 119         ulong shadow_srr1;
 120         ulong fault_dar;
 121         u32 fault_dsisr;
 122         u32 last_inst;
 123
 124 #ifdef CONFIG_PPC_BOOK3S_32
 125         u32     sr[16];                 /* Guest SRs */
 126
 127         struct kvmppc_host_state hstate;
 128 #endif
 129
 130 #ifdef CONFIG_PPC_BOOK3S_64
 131         u8 slb_max;                     /* highest used guest slb entry */
 132         struct  {
 133                 u64     esid;
 134                 u64     vsid;
 135         } slb[64];                      /* guest SLB */
 136 #endif
 137 };
 138
 139 #endif /*__ASSEMBLY__ */
 140
 141 /* Values for kvm_state */
 142 #define KVM_HWTHREAD_IN_KERNEL  0
 143 #define KVM_HWTHREAD_IN_NAP     1
 144 #define KVM_HWTHREAD_IN_KVM     2
 145
 146 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */