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 54kvmppc_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 */ 75struct 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[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */ 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 u64 host_fscr; 108#endif 109}; 110 111struct kvmppc_book3s_shadow_vcpu { 112 bool in_use; 113 ulong gpr[14]; 114 u32 cr; 115 u32 xer; 116 ulong ctr; 117 ulong lr; 118 ulong pc; 119 120 ulong shadow_srr1; 121 ulong fault_dar; 122 u32 fault_dsisr; 123 u32 last_inst; 124 125#ifdef CONFIG_PPC_BOOK3S_32 126 u32 sr[16]; /* Guest SRs */ 127 128 struct kvmppc_host_state hstate; 129#endif 130 131#ifdef CONFIG_PPC_BOOK3S_64 132 u8 slb_max; /* highest used guest slb entry */ 133 struct { 134 u64 esid; 135 u64 vsid; 136 } slb[64]; /* guest SLB */ 137 u64 shadow_fscr; 138#endif 139}; 140 141#endif /*__ASSEMBLY__ */ 142 143/* Values for kvm_state */ 144#define KVM_HWTHREAD_IN_KERNEL 0 145#define KVM_HWTHREAD_IN_NAP 1 146#define KVM_HWTHREAD_IN_KVM 2 147 148#endif /* __ASM_KVM_BOOK3S_ASM_H__ */ 149