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 	struct kvm_vcpu *kvm_vcpu;
83 	struct kvmppc_vcore *kvm_vcore;
84 	unsigned long xics_phys;
85 	u64 dabr;
86 	u64 host_mmcr[3];
87 	u32 host_pmc[8];
88 	u64 host_purr;
89 	u64 host_spurr;
90 	u64 host_dscr;
91 	u64 dec_expires;
92 #endif
93 };
94 
95 struct kvmppc_book3s_shadow_vcpu {
96 	ulong gpr[14];
97 	u32 cr;
98 	u32 xer;
99 
100 	u32 fault_dsisr;
101 	u32 last_inst;
102 	ulong ctr;
103 	ulong lr;
104 	ulong pc;
105 	ulong shadow_srr1;
106 	ulong fault_dar;
107 
108 #ifdef CONFIG_PPC_BOOK3S_32
109 	u32     sr[16];			/* Guest SRs */
110 
111 	struct kvmppc_host_state hstate;
112 #endif
113 
114 #ifdef CONFIG_PPC_BOOK3S_64
115 	u8 slb_max;			/* highest used guest slb entry */
116 	struct  {
117 		u64     esid;
118 		u64     vsid;
119 	} slb[64];			/* guest SLB */
120 #endif
121 };
122 
123 #endif /*__ASSEMBLY__ */
124 
125 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */
126