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 #ifdef __ASSEMBLY__
  24
  25 #ifdef CONFIG_KVM_BOOK3S_HANDLER
  26
  27 #include <asm/kvm_asm.h>
  28
  29 .macro DO_KVM intno
  30         .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
  31             (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
  32             (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
  33             (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
  34             (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
  35             (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
  36             (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
  37             (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
  38             (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
  39             (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
  40             (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
  41             (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
  42             (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
  43             (\intno == BOOK3S_INTERRUPT_TRACE) || \
  44             (\intno == BOOK3S_INTERRUPT_PERFMON) || \
  45             (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
  46             (\intno == BOOK3S_INTERRUPT_VSX)
  47
  48         b       kvmppc_trampoline_\intno
  49 kvmppc_resume_\intno:
  50
  51         .endif
  52 .endm
  53
  54 #else
  55
  56 .macro DO_KVM intno
  57 .endm
  58
  59 #endif /* CONFIG_KVM_BOOK3S_HANDLER */
  60
  61 #else  /*__ASSEMBLY__ */
  62
  63 /*
  64  * This struct goes in the PACA on 64-bit processors.  It is used
  65  * to store host state that needs to be saved when we enter a guest
  66  * and restored when we exit, but isn't specific to any particular
  67  * guest or vcpu.  It also has some scratch fields used by the guest
  68  * exit code.
  69  */
  70 struct kvmppc_host_state {
  71         ulong host_r1;
  72         ulong host_r2;
  73         ulong host_msr;
  74         ulong vmhandler;
  75         ulong scratch0;
  76         ulong scratch1;
  77         u8 in_guest;
  78         u8 restore_hid5;
  79         u8 napping;
  80
  81 #ifdef CONFIG_KVM_BOOK3S_64_HV
  82         u8 hwthread_req;
  83         u8 hwthread_state;
  84
  85         struct kvm_vcpu *kvm_vcpu;
  86         struct kvmppc_vcore *kvm_vcore;
  87         unsigned long xics_phys;
  88         u64 dabr;
  89         u64 host_mmcr[3];
  90         u32 host_pmc[8];
  91         u64 host_purr;
  92         u64 host_spurr;
  93         u64 host_dscr;
  94         u64 dec_expires;
  95 #endif
  96 };
  97
  98 struct kvmppc_book3s_shadow_vcpu {
  99         ulong gpr[14];
 100         u32 cr;
 101         u32 xer;
 102
 103         u32 fault_dsisr;
 104         u32 last_inst;
 105         ulong ctr;
 106         ulong lr;
 107         ulong pc;
 108         ulong shadow_srr1;
 109         ulong fault_dar;
 110
 111 #ifdef CONFIG_PPC_BOOK3S_32
 112         u32     sr[16];                 /* Guest SRs */
 113
 114         struct kvmppc_host_state hstate;
 115 #endif
 116
 117 #ifdef CONFIG_PPC_BOOK3S_64
 118         u8 slb_max;                     /* highest used guest slb entry */
 119         struct  {
 120                 u64     esid;
 121                 u64     vsid;
 122         } slb[64];                      /* guest SLB */
 123 #endif
 124 };
 125
 126 #endif /*__ASSEMBLY__ */
 127
 128 /* Values for kvm_state */
 129 #define KVM_HWTHREAD_IN_KERNEL  0
 130 #define KVM_HWTHREAD_IN_NAP     1
 131 #define KVM_HWTHREAD_IN_KVM     2
 132
 133 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */